AME, Inc. 1A Low Dropout AME1117 Positive Voltage Regulator General Description Functional Block Diagram Input Current Limiting

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1 General Description Functional Block Diagram The is a 1A low-dropout positive voltage regulator. It is available in fixed and adjustable output voltage versions. Overcurrent and thermal protection are integrated onto the chip. Output current will limit as while it reaches the pre-set current or temperature limit. The dropout voltage is specified at 1.4V Maximum at full rated output current. The series provides excellent regulation over line, load and temperature variations. Current Limiting Amplifier Input Thermal Protection Output Features Low Dropout Voltage V at 1A Adjustable or Fixed Voltages: 1.8V, 2.5V, 3.3V, 5.0V Adjust Pin Current Less than 120µA Overcurrent Protection Thermal Protection Available in TO-220, TO-252, SOT-223 All AME's Lead Free Products Meet RoHS Standards Error Amp. Typical Application Bandgap Reference ADJ/COM GND Applications Tan Tan Load High Efficiency Linear Regulators Post Regulators for Switching Supplies 5V to 3.3V Voltage Converter Battery Charger Rev.S.02 1

n Pin Configuration TO-220-3 Front View SOT-223 Front View AMExxxx 1. ADJ / GND 2. OUT (TAB) 3.

2 n Pin Configuration TO Front View SOT-223 Front View AMExxxx 1. ADJ / GND 2. OUT (TAB) 3. IN * Die Attach: Conductive Epoxy ADJ / GND 2. OUT (TAB) 3. IN * Die Attach: Conductive Epoxy TO Front View ADJ / GND 2. OUT (TAB) 3. IN * Die Attach: Conductive Epoxy 2 Rev.S.02

3 Ordering Information x x x x x Special Feature Number of Pins Package Type Operating Ambient Temperature Range Product Grade or Option Product Grade or Option Operating Ambient Temperature Range Package Type Number of Pins Special Feature A: ADJ C: 0 O C to 70 O C B: TO-220 T: 3 Z: Lead Free B: 2.5V C: TO-252 C: 3.3V G: SOT-223 D: 5.0V E: 1.8V Rev.S.02 3

4 Ordering Information (contd.) Part Number Marking* Output Voltage Package Operating Ambient Temperature Range ACGT ABEyww ADJ SOT o C to 70 o C ACGTZ ABEyww ADJ SOT o C to 70 o C BCGT AKEyww 2.5 SOT o C to 70 o C BCGTZ AKEyww 2.5 SOT o C to 70 o C CCGT ABFyww 3.3 SOT o C to 70 o C CCGTZ ABFyww 3.3 SOT o C to 70 o C DCGT AKFyww 5.0 SOT o C to 70 o C DCGTZ AKFyww 5.0 SOT o C to 70 o C ECGT AXHyww 1.8 SOT o C to 70 o C ECGTZ AXHyww 1.8 SOT o C to 70 o C ACCT ACCTZ BCCT BCCTZ CCCT CCCTZ ACCT ACCT BCCT BCCT CCCT CCCT ADJ TO o C to 70 o C ADJ TO o C to 70 o C 2.5 TO o C to 70 o C 2.5 TO o C to 70 o C 3.3 TO o C to 70 o C 3.3 TO o C to 70 o C Note: & yww represent the date code * A line on top of the first letter represents lead free plating such as. Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type. 4 Rev.S.02

5 Ordering Information Part Number Marking* Output Voltage Package DCCT DCCTZ ECCT ECCTZ ACBT ACBTZ BCBT BCBTZ CCBT CCBTZ DCBT DCBTZ ECBT ECBTZ DCCT DCCT ECCT ECCT ACBT ACBT BCBT BCBT CCBT CCBT DCBT DCBT ECBT ECBT Operating Ambient Temperature Range 5.0 TO o C to 70 o C 5.0 TO o C to 70 o C 1.8 TO o C to 70 o C 1.8 TO o C to 70 o C ADJ TO o C to 70 o C ADJ TO o C to 70 o C 2.5 TO o C to 70 o C 2.5 TO o C to 70 o C 3.3 TO o C to 70 o C 3.3 TO o C to 70 o C 5.0 TO o C to 70 o C 5.0 TO o C to 70 o C 1.8 TO o C to 70 o C 1.8 TO o C to 70 o C Rev.S.02 5

6 Absolute Maximum Ratings Parameter Package Die Attach Symbol Maximum Unit Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) TO TO Conductive Epoxy θjc 5 SOT TO TO Conductive Epoxy θja 90 SOT o C/W Internal Power Dissipation Input Voltage TO TO Conductive Epoxy P D 1200 mw SOT V Operating Junction Temperature Range Storage Temperature Range Solder Iron (10 Sec)** T J 0 to 125 o C T STG -65 to 150 o C 350 o C Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. * Measure θ JC on backside center of tab. ** MIL-STD-202G 210F 6 Rev.S.02

7 Electrical Specifications Exxx Parameter Symbol Test Condition Min Typ Max Units Output Voltage = 5V, I O = 0A = 4.75V to 7V, Line Regulation REG LINE I O = 0A Load Regulation REG LOAD = 5V, I O = 0A~1A Dropout Voltage V DROPOUT I O = 1A, Vo = ±1% T J =25 o C Current Limit I S = 4.75V to 7V A Quiescent Current I Q = 5V, I O = 0A to 1A ma Temp. Coefficient T C = 4.75V to 7V, I O = 0A to 1A %/ºC Temperature Stability T S = 5V, I O = 100mA % RMS Output Noise V N 10H Z <= f <=10KH Z T J =25 o C %V O Ripple Rejection Ratio R A = 5V, I O = 1A db V % V Dxxx Parameter Symbol Test Condition Min Typ Max Units T J =25 o C Output Voltage = 7V, I O = 0A V Line Regulation REG LINE =7V to 9V, I O = 0A Load Regulation REG LOAD = 7V I O = 0A~1A Dropout Voltage V DROPOUT I O = 0A to 1A, Vo = ±1% Current Limit I S = 7V to 10V A Quiescent Current I Q = 7V, I O = 0A to 1A ma Temp. Coefficient T C = 7V to 10V, I O = 0A to 1A %/ºC Temperature Stability T S = 5V, I O = 100mA % RMS Output Noise V N 10H Z <= f <=10KH Z T J =25 o C %V O Ripple Rejection Ratio R A = 5V, I O = 1A db % V Rev.S.02 7

8 Electrical Specifications Cxxx Parameter Symbol Test Condition Min Typ Max Units T J =25 o C Output Voltage = 5V, I O = 0A V = 4.75V to 7V, Line Regulation REG LINE I O = 0A = 5V Load Regulation REG LOAD I O = 0A to 1A Dropout Voltage V DROPOUT I O = 0A to 1A, Vo = ±1% Current Limit I S = 4.75V to 7V A Quiescent Current I Q = 5V, I O = 0A to 1A ma Temp. Coefficient T C = 4.75V to 7V, I O = 0A~1A %/ºC Temperature Stability T S = 5V, I O = 100mA % RMS Output Noise V N 10H Z <= f <=10KH Z T J =25 o C %V O Ripple Rejection Ratio R A = 5V, I O = 1A db % V Bxxx Parameter Symbol Test Condition Min Typ Max Units T J =25 o C Output Voltage = 5V, I O = 0A V = 4.75V to 7V, Line Regulation REG LINE I O = 0A = 5V Load Regulation REG LOAD I O = 0A to 1A Dropout Voltage V DROPOUT I O = 0A to 1A, Vo = ±1% - - Current Limit I S = 4.75V to 7V A Quiescent Current I Q = 5V, I O = 0A to 1A ma Temp. Coefficient T C = 4.75V to 7V, I O = 0A~1A %/ºC Temperature Stability T S = 5V, I O = 100mA % RMS Output Noise V N 10H Z <= f <=10KH Z T J =25 o C %V O Ripple Rejection Ratio R A = 5V, I O = 1A db % V 8 Rev.S.02

9 Electrical Specifications Axxx Parameter Symbol Test Condition Min Typ Max Units Reference Voltage Line Regulation * Load Regulation Dropout Voltage T J =25 o C Current Limit I S = 2.7V to 7V A Temp. Coefficient T C = 2.75V to 7V, I O = 10mA to 1A %/ºC Adjust Pin Current Adjust Pin Current Change V REF REG LINE REG LOAD V DROPOUT I ADJ I ADJ = 5V, I O = 10mA = 4.75V to 7V, I O = 10mA = 5V, I O = 10mA to 1A I O = 10mA to 1A, Vo = ±1% = 2.75V to 7V, I O = 10mA to 1A = 2.75V to 7V, I O = 10mA to 1A Temperature Stability T S = 5V, I O = 100mA % Minimum Load Current I O = 5V ma RMS Output Noise V N 10H Z <= f <=10KH Z T J =25 o C %V O Ripple Rejection Ratio R A = 5V, I O = 1A db V % V µa *Line regulation test circuit IN OUT ADJ 100 Tan 164 Tan Rev.S.02 9

10 Application Description 1. Output Voltage Adjustment Like most regulators, the regulates the output by comparing the output voltage to an internally generated reference voltage. On the adjustable version, the V REF is available externally as 1.25V between and ADJ. The voltage ratio formed by R1 and R2 should be set to conduct 10mA (minimum output load). The output voltage is given by the following equation: = V REF ( 1 + R2 R1 ) + I ADJ x R2 On fixed versions of, the voltage divider is provided internally. 3. Current Limit Protection is protected against overload conditions. Current protection is triggered at typically 1.5A. 4. Stability and Load Regulation requires a capacitor from to GND to provide compensation feedback to the internal gain stage. This is to ensure stability at the output terminal. Typically, a 10µF tantalum or 50µF aluminum electrolytic is sufficient. (Note: It is important that the ESR for this capacitor does not exceed 0.5Ω.) C 1 IN I ADJ 55mA ADJ OUT V REF R1 R2 The output capacitor does not have a theoretical upper limit and increasing its value will increase stability. C OUT = 100µF or more is typical for high current regulator design. For the adjustable version, the best load regulation is accomplished when the top of the resistor divider (R1) is connected directly to the output pin of the. When so connected, R P is not multiplied by the divider ratio. 2. Thermal Protection = V REF (1+ R2 R1 ) + I ADJ x R2 has thermal protection which limits junction temperature to 150 o C. However, device functionality is only guaranteed to a maximum junction temperature of +125 o C. The power dissipation and junction temperature for is given by P D = ( - ) x I OUT For fixed output versions, the top of R1 is internally connected to the output. The ground pin can be connected to the low side of the load in order to eliminate ground loop errors. IN ADJ OUT R P Parasitic Line Resistance R1 (Connect R1 to case) R2 R L T JUNCTION = T AMBIENT + ( P D x θ JA ) Note: T JUNCTION must not exceed 125 o C Connect R2 to load 10 Rev.S.02

11 5. Thermal Consideration The series contain thermal limiting circuitry designed to protect itself from over-temperature conditions. Even for normal load conditions, maximum junction temperature ratings must not be exceeded. As mentioned in thermal protection section, we need to consider all sources of thermal resistance between junction and ambient. It includes junction-to-case, case-to-heat-sink interface and heat sink thermal resistance itself. Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. Proper mounting is required to ensure the best possible thermal flow from this area of the package to the heat sink. The case of all devices in this product series is electrically connected to the output. Therefore, if the case of the device must be electrically isolated, a thermally conductive spacer is recommended. Rev.S.02 11

12 Advanced Applications (contd.) Adjustable Output Voltage = 5V * V O = V ADJ R1 ** R2 2K 1K R2 Note: * = V REF ( 1 + ) + I ADJ x R2 R1 ** Optional for improved ripple rejection Paralleling Regulators GND * 20mW I O = 0 to 2A GND * 20mW Note: * 20mΩ is ballast resistance The inter - connection of #18 wire could act as ballast resistance 12 Rev.S.02

13 Advanced Applications Regulator with Reference * V O GND ** 1K Zener diode or voltage reference Note: * V O = V REF + V Z (V Z : breakdown voltage of Zener diode) ** Optional for improved ripple rejection Regulator with Reverse Diode Protection *V O GND Rev.S.02 13

14 Output Voltage deviation (%) Temperature Stability (For Fixed Voltage) I O =0mA Reference Voltage (V) Temperature Stability (For Adjustable Voltage) I O =10mA Temperature ( o C) Temperature ( o C) Output Short Circuit Current (A) 3.0 Short Circuit Current T J =25 O C Input/Output Differential Voltage(V) Drop-out Voltage (V) Dropout Voltage T J =25 O C Load Current (A) Adjust Pin Current Minimum Operating Current 45 7 Adjust Pin Current (ma) Temperature ( o C) Minimum Operation Current (ma) 6 5 T J =25 O C Input/Output Differential Voltage(V) 14 Rev.S.02

15 Load Transient Response Line Transient Response Output Voltage Deviation (V) Load Current(A) C IN =10µF V O C OUT =10µF C OUT =1µF C OUT =0µF I O T J =25 O C =5V V O =3.3V Preload=100mA Time (ms) 30mV 0-30mV 6V 5V V O Deviation C IN =C O =1mF, I O =0.1A, V O =3.3V Time (ms) T J =25 O C Rev.S.02 15

16 Tape and Reel Dimension TO P PIN 1 W AME AME Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TO ±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm SOT-223 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT ±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm 16 Rev.S.02

17 Package Dimension SOT-223 Top View D B1 Side View C MILLIMETERS INCHES SYMBOLS MIN MAX MIN MAX A H E 13 o (4X) B B C D F e Front View 13 o (4X) E F e 2.30 BSC BSC H A1 B q 0 o 10 o 0 o 10 o TO O Top View SYMBOLS MILLIMETERS INCHES MIN MAX MIN MAX N M I G A C D E K P G I Side View K M C E A D N O P Rev.S.02 17

18 Package Dimension TO Top View E K Side View B A SYMBOLS MILLIMETERS INCHES MIN MAX MIN MAX A B L C D E F F G H - * * J G C K L 1.40REF 0.055REF J H D *: Typical Value Notes: 1. Controlling dimension: Millimeters. 2. Maximum lead thickness includes lead finish thickness Minimum lead thickness is the minimum thickness of base material. 18 Rev.S.02

19 Life Support Policy: These products of are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information., July 2007 Document: 1014-DS1117-S.02 Corporate Headquarter U.S.A.(Subsidiary) Analog Microelectronics, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201 Taipei 114, Taiwan. Santa Clara, CA Tel: Tel : (408) Fax: Fax: (408)

LINEARINTEGRATEDCIRCUIT TL1117 1A LOW DROPOUT POSITIVE VOLTAGE REGULATOR DESCRIPTION FEATURES APPLICATIONS ABSOLUTE MAXIMUM RATINGS TO-220

LINEARINTEGRATEDCIRCUIT TL1117 1A LOW DROPOUT POSITIVE VOLTAGE REGULATOR DESCRIPTION FEATURES APPLICATIONS ABSOLUTE MAXIMUM RATINGS TO-220 A LOW DROPOUT POSITIVE VOLTAGE REGULATOR DESCRIPTION The is aa low-dropout positive voltage regulator. It is available in fixed and adjustable output voltage versions. Over-current and thermal protection