IFX1963. Data Sheet. Industrial Standard Power. 1.5A Low Dropout Linear Voltage Regulator IFX1963TBV IFX1963TEV. Rev. 1.

Transcription

1 .5A Low Dropout Linear Voltage Regulator IFX963TBV IFX963TEV Data Sheet Rev.., Industrial Standard Power

2 Table of Contents Table of Contents Overview Block Diagram Pin Configuration Pin Assignment IFX963TBV Pin Definitions and Functions IFX963TBV Pin Assignment IFX963TEV Pin Definitions and Functions IFX963TEV General Product Characteristics Absolute Maximum Ratings Functional Range Thermal Resistance Electrical Characteristics Electrical Characteristics Voltage Regulator Typical Performance Characteristics Application Information Adjustable Operation Output Capacitance and Transient Response Overload Recovery Output Voltage Noise Protection Features Further Application Information Package Outlines Revision History Data Sheet 2 Rev..,

3 .5A Low Dropout Linear Voltage Regulator IFX963 Overview Features Adjustable Output Voltage Output Voltage Tolerance at small loads of ±.5 % Output Current Capability up to.5 A Very Low Dropout Voltage of 34 mv Extended Operating Range Starting at.7 V Low Noise of typ. 4 µv RMS ( Hz to khz) Small Output Capacitor for Stability µf Suitable for Ceramic Output Capacitors Enable Functionality Overtemperature Shutdown Reverse Polarity Protection Output Current Limitation Wide Temperature Range From -4 C up to 25 C Green Product (RoHS compliant) PG-TO263-5 The IFX963 is not qualified and manufactured according to the requirements of Infineon Technologies with regards to automotive and/or transportation applications. For automotive applications please refer to the Infineon voltage regulator TLF963 or in general to Infineon TLx (TLE, TLS, TLF...) voltage regulator products. PG-TO252-5 Functional Description The IFX963 is a low dropout voltage regulator available in PG-TO263-5 and PG-TO252-5 SMD package. The IC regulates an input voltage in the range of 2.5 V < < 2 V to an adjustable output voltage of.2 V < V OUT,nom < -V DR. The device is capable to supply loads up to.5 A. The regulator can be enabled and disabled via the Enable input. The integrated output current limitation and the overtemperature shutdown will protect the device against failures like output short circuit to GND, overcurrent and overtemperature. The IFX963 provides the ideal solution for systems requiring several supply voltages. With its adjust feature the regulator can provide all supply voltages between.2 V and the available input voltage, this offers a high flexibility to the system designer. Type Package Marking IFX963TBV PG-TO BV IFX963TEV PG-TO EV Data Sheet 3 Rev..,

4 Overview Choosing External Components The input capacitor C IN is necessary for compensating line influences. The output capacitor C OUT is necessary for the stability of the regulating circuit. Stability is guaranteed at values specified in Functional Range on Page 9 within the whole operating temperature range. Data Sheet 4 Rev..,

5 Block Diagram 2 Block Diagram IFX963 ADJ Reverse Current Protection IN 2 4 OUT EN 4 Bias Over Current Protection Saturation Control Temperature Protection Voltage reference Error Amplifier 5 ADJ 3 GND Figure Block Diagram Data Sheet 5 Rev..,

6 Pin Configuration 3 Pin Configuration 3. Pin Assignment IFX963TBV GND 5 EN GND ADJ IN OUT Figure 2 Pin Configuration PG-TO Pin Definitions and Functions IFX963TBV Pin Symbol Function EN Enable; A low signal disables the IC. A high signal switches it on. Connect to the input IN, if enable functionality is not required. 2 IN Input voltage; IC supply. For compensating line influences, a capacitor close to the IC pins is recommended. 3 GND Ground 4 OUT Output voltage; Connect a capacitor between OUT and GND close to the IC terminals, respecting the values given for its capacitance C OUT and ESR given in the table Functional Range on Page 9 5 ADJ Adjust Input; Connect an external voltage divider from OUT to GND to determine the output voltage. By connecting the output pin OUT directly to the adjust pin ADJ without resistors an ouput voltage equal to the reference voltage V ADJ =.2 V is determined. TAB GND Ground Data Sheet 6 Rev..,

7 Pin Configuration 3.3 Pin Assignment IFX963TEV GND 5 EN IN OUT ADJ Figure 3 Pin Configuration PG-TO Pin Definitions and Functions IFX963TEV Pin Symbol Function EN Enable; A low signal disables the IC. A high signal switches it on. Connect to the input IN, if enable functionality is not required. 2 IN Input voltage; IC supply. For compensating line influences, a capacitor close to the IC pins is recommended. 3 GND Ground 4 OUT Output voltage; Connect a capacitor between OUT and GND close to the IC terminals, respecting the values given for its capacitance C OUT and ESR given in the table Functional Range on Page 9 5 ADJ Adjust Input; Connect an external voltage divider from OUT to GND to determine the output voltage. By connecting the output pin OUT directly to the adjust pin ADJ without resistors an ouput voltage equal to the reference voltage V ADJ =.2 V is determined. TAB GND Ground Data Sheet 7 Rev..,

8 General Product Characteristics 4 General Product Characteristics 4. Absolute Maximum Ratings Table Absolute Maximum Ratings ) = -4 C to +25 C; all voltages with respect to ground (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Max. Input, Enable 4.. Voltage, V EN -2 2 V Adjust 4..2 Voltage V ADJ -7 7 V Output 4..3 Voltage V OUT -2 2 V Temperatures 4..4 Junction Temperature -4 5 C 4..5 Storage Temperature T stg -5 5 C ESD Susceptibility 4..6 ESD Resistivity V ESD -2 2 kv HBM 2) 4..7 ESD Resistivity V ESD V CDM 3) ) Not subject to production test, specified by design. 2) ESD susceptibility, HBM according to ANSI/ESDA/JEDEC JS (.5k Ω, pf) 3) ESD susceptibility, Charged Device Model CDM according JEDEC JESD22-C Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as outside normal operating range. Protection functions are not designed for continuous repetitive operation. Data Sheet 8 Rev..,

9 General Product Characteristics 4.2 Functional Range Table 2 Functional Range Pos. Parameter Symbol Limit Values Unit Conditions Min. Max Input voltage V Output Capacitor s Requirements C OUT µf ) for Stability ESR(C OUT ) 3 Ω 2) Junction temperature C ) the minimum output capacitance requirement is applicable for a worst case capacitance tolerance of 3% 2) relevant ESR value at f = khz Note: Within the functional or operating range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the Electrical Characteristics table. 4.3 Thermal Resistance Note: This thermal data was generated in accordance with JEDEC JESD5 standards. For more information, go to Table 3 Thermal Resistance Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. Package PG-TO Junction to Case ) R thjc.84 K/W measured to heat slug Junction to Ambient ) R thja 9 K/W 2) K/W footprint only 3) K/W 3 mm² heatsink area 3) K/W 6 mm² heatsink area 3) Package PG-TO Junction to Case ) R thjc.78 K/W measured to heat slug Junction to Ambient ) R thja 24 K/W 2) K/W footprint only 3) K/W 3 mm² heatsink area 3) K/W 6 mm² heatsink area 3) ) Not subject to production test, specified by design. 2) Specified R thja value is according to Jedec JESD5-2,-5,-7 at natural convection on FR4 2s2p board; The Product (Chip+Package) was simulated on a 76.2 x 4.3 x.5 mm³ board with 2 inner copper layers (2 x 7 µm Cu, 2 x 35 µm Cu). Where applicable a thermal via array under the exposed pad contacted the first inner copper layer. 3) Specified R thja value is according to Jedec JESD 5-3 at natural convection on FR4 sp board; The Product (Chip+Package) was simulated on a mm 3 board with copper layer ( x 7 µm Cu). Data Sheet 9 Rev..,

10 Electrical Characteristics 5 Electrical Characteristics 5. Electrical Characteristics Voltage Regulator Table 4 Electrical Characteristics: V I = 2.5 V - 2 V, = -4 C to +25 C, all voltages with respect to ground, positive current flowing out of the pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. 5.. Min. Input Voltage ) 2),min.7 V =.5 A; = 25 C 5..2,min V =.5 A 5..3 Adjustable Pin Voltage ) 3) V ADJ V = 2.2 to 2 V; = ma; = 25 C V = ma to.5 A 5..5 Line regulation ) ΔV OUT,line. 3 mv = 2.2 to 2 V; = ma 5..6 Load regulation ) ΔV OUT,load 2 8 mv = ma to.5 A; = 2.5 V; = 25 C mv = ma to.5 A; = 2.5 V ) 4) 5) Dropout voltage V DR..3 V = ma; = 25 C 5..9 = V OUT,nom.4 V = ma V = ma; = 25 C V = ma V = 5 ma; = 25 C V = 5 ma V =.5 A; = 25 C V =.5 A ) 6) GND Pin Current I q..5 ma = ma 5..7 = V OUT,nom + V..7 ma = ma ma = ma ma = 5 ma ma =.5 A 5..2 Output Voltage Noise V OUT,noise 4 µv RMS C OUT = µf; =.5 A; BW = Hz to khz ADJ Pin Bias Current ) 7) I ADJ 2 µa Enable Threshold V EN,LH.4 2 V V OUT = Off to On V EN,HL.8.3 V V OUT = On to Off EN Pin current 8) I EN.2 µa V EN = V µa V EN 2 V Data Sheet Rev..,

11 Electrical Characteristics Table 4 Electrical Characteristics: (cont d) V I = 2.5 V - 2 V, = -4 C to +25 C, all voltages with respect to ground, positive current flowing out of the pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max Quiescent Current in Shutdown 9) I q,off. µa = 6 V; V EN = V; 85 C Power Supply ripple rejection ) PSRR db = 25 C; f r = 2 Hz; =.75 A; - V OUT =.5 V; V r =.5 V pp Output current limitation 2 A = 25 C; = 7 V; V OUT = V A = V OUT,nom + V; dv OUT = -. V 5..3 Input Reverse Leakage Current I IN,rev 2 ma = -2 V; V OUT = V Reverse Output Current )),rev 3 6 µa = 25 C; V OUT =.2 V; = V ma V OUT =.2 V; = V ) The IFX963 is tested and specified for these conditions with the ADJ pin connected to the OUT pin. 2) For IFX963 dropout voltage will be limited by the minimum input voltage specification under some output voltage/load conditions. 3) Operating conditions are limited by maximum junction temperature. The regulated output voltage specification will not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage range must be limited. 4) To satisfy requirements for minimum input voltage, the IFX963 is tested and specified for these conditions with an external resistor divider (two 4.2 kω resistors) for an output voltage of 2.4 V. The external resistor divider will add a 3 µa DC load on the output. 5) Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage will be equal to: V DR 6) GND pin current is tested with = V OUT,nom + V and a current source load. 7) ADJ pin bias current flows into the ADJ pin. 8) EN pin current flows into the EN pin. 9) Specified by design, tested at T amb = 25 C ) Not subject to production test, specified by design. ) Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. The reverse output current flows into the OUT pin. Data Sheet Rev..,

12 Electrical Characteristics 5.2 Typical Performance Characteristics Dropout Voltage V DR versus Output Current Guaranteed Dropout Voltage V DR versus Output Current Δ : Testpoint V DR [mv] 3 25 V DR [mv] T 5 j = 25 C = 25 C.5.5 [A] Dropout Voltage V DR versus Temperature = 4 C T 5 j = 25 C = 25 C.5.5 [A] Quiescent Current I q versus Temperature = ma = 5 ma =.5 A V DR [mv] I q [ma] [ C].4.2 = 6 V = ma. V EN = 5 5 [ C] Data Sheet 2 Rev..,

13 Electrical Characteristics Adjustable Voltage V ADJ versus Temperature Quiescent Current I q versus Input Voltage (V OUT,nom = 2.5 V) V OUT,nom = 2.5 V = 25 C = ma.2 5 V ADJ [V].25 I q [ma].2 = ma.95 = ma = 5 ma =.5 A [ C] Quiescent Current I q versus Input Voltage (V OUT,nom =.2 V) [V] GND Pin Current I GND versus Output Current V OUT,nom =.2 V = 25 C = ma 2 = 4 C = 25 C = 25 C.2 8 I q [ma].8 I GND [ma] [V] = V OUT,nom + V.5.5 [A] Data Sheet 3 Rev..,

14 Electrical Characteristics GND Pin Current I GND versus Input Voltage (V OUT,nom = 2.5 V) GND Pin Current I GND versus Input Voltage (V OUT,nom =.2 V) 3 = ma 3 = ma = ma = ma 25 = 5 ma 25 = 5 ma 2 V OUT,nom = 2.5 V = 25 C 2 V OUT,nom =.2 V = 25 C I GND [ma] 5 I GND [ma] [V] GND Pin Current I GND versus Input Voltage (V OUT,nom = 2.5 V) [V] GND Pin Current I GND versus Input Voltage (V OUT,nom =.2 V) 9 V OUT,nom = 2.5 V = 25 C 9 V OUT,nom =.2 V = 25 C I GND [ma] = ma = ma = 5 ma =.5 A I GND [ma] = ma = ma = 5 ma =.5 A [V] [V] Data Sheet 4 Rev..,

15 Electrical Characteristics EN Pin Thresholds V EN,th versus Temperature EN Pin Input Current I EN versus EN Pin Voltage V EN 2.8 Threshold Off to On Threshold On to Off V EN,th [V].4 I EN [µa] = 25 C = 2 V [ C] EN Pin Input Current I EN versus Temperature V EN [V] Adjustable Pin Bias Current I ADJ versus Temperature I EN [µa] 2.5 I ADJ [µa] V EN = 2 V. 5 5 [ C] 5 5 [ C] Data Sheet 5 Rev..,

16 Electrical Characteristics Current Limit,max versus Input / Output Differential - V OUT Current Limit,max versus Temperature ΔV OUT = mv = 7 V V OUT = V ,max [A].5,max [A] = 25 C V OUT [V] Reverse Output Current,rev versus Output Voltage V OUT = 4 C = 25 C [ C] Reverse Output Current,rev versus Temperature = V = 25 C ,rev [ma] ,rev [ma] V OUT.nom =.2 V V OUT.nom = 2.5 V V OUT [V]. = V V OUT =.2 V. 5 5 [ C] Data Sheet 6 Rev..,

17 Electrical Characteristics Ripple Rejection PSRR versus Frequency f Ripple Rejection PSRR versus Temperature =.75 A = V OUTnom + V = 25 C C OUT = µf Ceramic PSRR [db] 4 3 PSRR [db] k k k f [Hz] Minimum Input Voltage,min versus Temperature [ C] Load Regulation dv Load versus Temperature =.75 A = V OUT,nom + V. f Ripple = 2 Hz ,min [V].5 dv Load [mv] = ma = 5 ma =.5 A 5 5 [ C] d = ma to.5 A. = 2.7 V V OUT,nom =.2 V [ C] Data Sheet 7 Rev..,

18 Electrical Characteristics Equivalent Series Resistance ESR(C OUT ) vs Load Current 9 Max ESR Min ESR 8 7 ESR(C OUT ) [Ω] C OUT = µf. m m m [A] Data Sheet 8 Rev..,

19 Application Information 6 Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. The IFX963 is an.5 A low dropout regulator optimized for fast transient response. The device is capable of supplying.5 A at a very low dropout voltage up to a Junction Temperature of 25 C. The low operating quiescent current of typical ma drops to less than µa in case the device is disabled. In addition to the low quiescent current, the IFX963 incorporates several protection features which make them ideal for use in battery-powered systems. The device is protected against both reverse input and reverse output voltages. Note: This is a very simplified example of an application circuit. The function must be verified in the real application. 2 IFX963 VIN OUT 4 µf IN VOUT µf R2 ADJ 5 EN R TAB GND 3 APPLICATION_DIAGRAM.VSD Figure 4 Application Diagram 6. Adjustable Operation The IFX963 has an output voltage range of.2 V to - V DR < 2 V. The output voltage is set by the ratio of two external resistors as shown in Figure 4. The device serves the output to maintain the voltage at the ADJ pin at.2 V referenced to ground. The current in R is then equal to.2 V / R and the current in R2 is the current in R plus the ADJ pin bias current. The ADJ pin bias current, µa at 25 C, flows through R2 into the ADJ pin. The output voltage can be calculated using the formula in Equation (). R 2 V OUT = V ADJ I ADJ R 2 R () V ADJ =.2 V typical I ADJ = µa at 25 C The value of R is recommended to be smaller than 2 kω to minimize errors in the output voltage caused by the ADJ pin bias current. Note that in shutdown the output is turned off and the divider current will be zero. The adjustable device is in many cases tested and specified with the ADJ pin connected to the OUT pin for an output voltage of.2 V. Specifications for output voltages adjusted to greater values than.2v will be proportional to the ratio of the desired output voltage to.2 V. For example, load regulation for an output current change of ma to.5 A is ΔV OUT,load = 2 mv typical at V OUT,nom =.2 V. At V OUT,nom = 5 V, load regulation is: ΔV OUT,load,5V = (5 V /.2 V) (2 mv) = 8.3 mv Data Sheet 9 Rev..,

20 Application Information 6.2 Output Capacitance and Transient Response The IFX963 is designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability, most notably with small capacitors. A minimum output capacitor of µf with an ESR in the range of mω to 3 Ω is recommended to prevent oscillations. Larger values of output capacitance can decrease the peak deviations and provide improved transient response for larger load current changes. 6.3 Overload Recovery The IFX963 has a safe operating area protection. The device protects itself by limiting the output current to a maximum and prevent it self against destruction due to overload or short circuits conditions. In this cases the current is limited and the resulting output voltage decreases according to the load down to V in a short circuit condition. The IFX963 can supply the application for all input voltages between 2.5 V up to 2V with currents up to.5 A. Of course it needs to be ensured, that the junction temperature stays within the operating range up to 25 C. For startup conditions with a high load current the IFX963 is able to start up properly without exeeding the safe operating area. Even imediatly after removal of a short circuit failure case the device is able to start if the load current is very high. The characteristic of the current limitation can by seen in the typical perfomance graphs on Page Output Voltage Noise The IFX963 has been designed to provide low output voltage noise over the Hz to khz bandwidth while operating at full load. Output voltage noise is typically 4 µv RMS over this frequency bandwidth. For higher output voltages (generated by using a resistor divider), the output voltage noise will be gained up accordingly. Higher values of output voltage noise may be measured when care is not exercised with regards to circuit layout and testing. Crosstalk from nearby traces can induce unwanted noise onto the output of the IFX963. Power supply ripple rejection must also be considered, because the IFX963 does not have unlimited power supply ripple rejection and will pass a small portion of the input noise through to the output. 6.5 Protection Features The IFX963 has several protection features which makes it ideal for use in battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such as current limiting and thermal limiting, the device is protected against reverse input voltages and reverse output voltages. Current limit protection and thermal overload protection are intended to protect the device against current overload conditions at the output of the device. For normal operation, the junction temperature should not exceed 25 C. The input of the device will withstand reverse voltages of 2 V. Current flow out of the device will be limited to less than 2 ma in case of an input voltage of -2 V at the Input and no negative voltage will appear at the output. The device will protect both itself and the load. This provides protection against batteries that can be plugged in backward. The output of the IFX963 can be pulled below ground without damaging the device. If the input is left open circuit or grounded, the output can be pulled below ground by 2 V. The output will act like an open circuit, no current will flow out of the pin. If the input is powered by a voltage source, the output will source the short-circuit current of the device and will protect itself by thermal limiting. In this case, grounding the EN pin will turn off the device and stop the output from sourcing the short-circuit current. In case the input of the IFX963 is low ( = V) while the output is forced to values > V (e.g. V OUT,nom ) the resulting reverse output current,rev is according to the specification and in Table 4. Further details are depicted in the typical performance graph Reverse Output Current IOUT,rev versus Output Voltage VOUT on Page 6. Please note that the specification of,rev is reflecting the behaviour when the regulator is unpowered and is not regulating. In case of >.2V while the output of the IFX963 is forced to a Data Sheet 2 Rev..,

21 Application Information voltage higher than (i.e. V OUT > ) the reverse output current,rev may depending on actual conditions rise to higher values and also flow out of the IN pin. The ADJ pin of the adjustable device can be pulled above or below ground by as much as 7 V without damaging the device. If the input is left open circuit or grounded, the ADJ pin will act like an open circuit when pulled below ground and like a resistor (typically 4 kω) in series with a diode when pulled above ground. In situations where the ADJ pin is connected to a resistor divider that would pull the ADJ pin above its 7 V clamp voltage if the output is pulled high, the ADJ pin input current must be limited to less than 5 ma. For example, a resistor divider is used to provide a regulated.5v output from the.2 V reference when the output is forced to 2 V. The top resistor of the resistor divider must be chosen to limit the current into the ADJ pin to less than 5 ma when the ADJ pin is at 7 V. The 3 V difference between OUT and ADJ pins divided by the 5 ma maximum current into the ADJ pin yields a minimum top resistor value of 2.6 kω. 6.6 Further Application Information For further information you may contact Data Sheet 2 Rev..,

22 Package Outlines 7 Package Outlines (5) ±.2 ±.3 ± ) ) 7.55 A.27 ±. 4.7 ± ±.3 B x.8 ±. 4 x.7.5 ±..25 M A B 8 MAX.. B ) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. GPT93 Figure 5 PG-TO263-5 SMD Package Data Sheet 22 Rev..,

23 Package Outlines 9.98± (4.24) ± (5) A 5.7 MAX..8±.5 ) B MAX. per side x.6± M A B.5 MIN B ) Includes mold flashes on each side. All metal surfaces tin plated, except area of cut. PG-TO PO V. Figure 6 PG-TO252-5 SMD Package Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-2). For further information on alternative packages, please visit our website: Dimensions in mm Data Sheet 23 Rev..,

24 Revision History 8 Revision History Revision Date Changes Data Sheet - Initial Release Data Sheet 24 Rev..,

25 Edition Published by Infineon Technologies AG 8726 Munich, Germany 23 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office ( Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automotive, aviation and aerospace applications or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that lifesupport automotive, aviation and aerospace device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.