Limited. R5324x SERIES. Limited TRIPLE LDO OUTLINE FEATURES APPLICATIONS NO. EA

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1 TRIPLE LDO R5324x SERIES NO. EA OUTLINE The R5324x Series are CMOS-based multi positive voltage regulator ICs with high output voltage accuracy, low supply current, low noise, low dropout and high ripple rejection. The R5324x Series contain three voltage regulators. Each of these voltage regulators in the R5324x Series consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a short current limit circuit, a chip enable circuit, and so on. The chip enable function contributes to prolong battery life. Further, regulators in the R5324x Series are with low dropout voltage, excellent load transient response and line transient response, thus the R5324x series are very suitable for the power supply for hand-held communication equipment. Since the packages for these ICs are SON-8 and DFN(PLP)2527-1, high density mounting of the ICs on boards is possible. FEATURES Supply Current...Typ. 9μA (VR1, VR2, VR3) Standby Current...Typ..1μA Output Current...Min. 2mA (VR1), 15mA (VR2), 1mA (VR3) Dropout Voltage...Typ..23V (VR1) (IOUT=2mA, VOUT=2.8V) Typ..22V (VR2) (IOUT=15mA, VOUT=2.8V) Typ..15V (VR3) (IOUT=1mA, VOUT=2.8V) Ripple Rejection...Typ. 7dB (f=1khz), Typ. 65dB (f=1khz) Input Voltage Range...2.V to 6.V Output Voltage Range...1.5V to 4.V (.1V steps) (For details, please refer to MARK INFORMATIONS.) Output Voltage Accuracy...±2.% Temperature-Drift Coefficient of Output Voltage...Typ. ±1ppm/ C Line Regulation...Typ..2%/V Packages...DFN(PLP)2527-1, SON-8 Built-in fold-back protection circuit...typ.5ma (VR1), Typ.4mA (VR2, VR3) (Current at short mode) Ceramic capacitors are recommended to be used with this IC...1.μF or more APPLICATIONS Power source for cellular phones and portable communication equipment. Power source for electrical appliances such as cameras, VCRs. Power source for battery-powered equipment. 1

2 BLOCK DIAGRAMS R5324xxxxA VDD VOUT1 CE1 Error Amp. Vref Current Limit R1_1 R2_1 VOUT2 Error Amp. R1_2 CE2 CE3 VDD CE1 Vref Current Limit Error Amp. Vref R2_2 Error Amp. Vref Current Limit R5324xxxxB Current Limit R1_3 R2_3 R1_1 R2_1 VOUT3 GND VOUT1 VOUT2 CE2 Error Amp. Vref Current Limit R1_2 R2_2 VOUT3 CE3 Error Amp. Vref Current Limit R1_3 R2_3 GND 2

3 SELECTION GUIDE R5324x The output voltage, auto discharge function, package, etc. for the ICs can be selected at the user s request. Product Name Package Quantity per Reel Pb Free Halogen Free R5324Kxxx -TR DFN(PLP) , pcs Yes Yes R5324Dxxx -TR-F SON-8 3, pcs Yes No xxx : The combination of output voltage for each channel can be designated by serial numbers. (from 1) The output voltage for each channel can be set in the range from 1.5V to 4.V in.1v steps. (For details, please refer to MARK INFORMATIONS.) : The auto discharge function at off state are options as follows. (A) without auto discharge function at off state (B) with auto discharge function at off state The products scheduled to be discontinued (be sold to limited customer) : "" These products will be discontinued in the future. You can not select these products newly. We will provide these products to the customer who has been using or has ordered them before. But we recommend changing to other products as soon as possible. 3

4 PIN CONFIGURATIONS DFN (PLP) SON-8 Top View Bottom View Top View Bottom View PIN DESCRIPTIONS DFN(PLP) Pin No Symbol Pin Description 1 VDD Input Pin 2 VDD Input Pin 3 CE1 Chip Enable Pin 1 ("H" Active) 4 CE2 Chip Enable Pin 2 ("H" Active) 5 CE3 Chip Enable Pin 3 ("H" Active) 6 GND Ground Pin 7 NC No Connection 8 VOUT3 Output Pin 3 9 VOUT2 Output Pin 2 1 VOUT1 Output Pin 1 ) Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the GND, but leaving it open is also acceptable. The VDD pin must be wired together when it is mounted on board. SON-8 Pin No Symbol Pin Description 1 VDD Input Pin 2 CE1 Chip Enable Pin 1 ("H" Active) 3 CE2 Chip Enable Pin 2 ("H" Active) 4 CE3 Chip Enable Pin 3 ("H" Active) 5 GND Ground Pin 6 VOUT3 Output Pin 3 7 VOUT2 Output Pin 2 8 VOUT1 Output Pin 1 ) Tab suspension leads are GND level. (They are connected to the reverse side of this IC.) The tab suspension leads should be open and do not connect to other wires or land patterns. 4

5 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN Input Voltage 6.5 V CE Input Voltage (CE Pin) -.3 to 6.5 V VOUT Output Voltage -.3 to VIN+.3 V IOUT1 Output Current (VOUT1) 23 ma IOUT2 Output Current (VOUT2) 18 ma IOUT3 Output Current (VOUT3) 18 ma PD Power Dissipation (DFN(PLP)2527-1)* 91 Power Dissipation (SON-8)* 48 Topt Operating Temperature Range -4 to 85 C Tstg Storage Temperature Range -55 to 125 C ) For Power Dissipation, please refer to PACKAGE INFORMATION. ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS) All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. mw 5

6 ELECTRICAL CHARACTERISTICS R5324xxxxA/B VR1 Topt=25 C Symbol Item Conditions Min. Typ. Max. Unit VOUT Output Voltage VIN VOUT=1.V 1mA < = IOUT < = 3mA V IOUT Output Current VIN VOUT=1.V 2 ma ΔVOUT/ΔIOUT Load Regulation VIN VOUT=1.V, 1mA < = IOUT < = 2mA 25 5 mv VDIF Dropout Voltage IOUT=2mA 1.8V < 2.1V < 2.8V < VOUT=1.5V VOUT=1.6V VOUT=1.7V = VOUT < = VOUT < = VOUT < = 2.V = 2.7V = 4.V ISS Supply Current VIN VOUT=1.V 9 14 μa Istandby Standby Current VIN VOUT=1.V, VCE=GND.1 1. μa Line Regulation IOUT=3mA, VOUT+.5V < = VIN < = 6.V (VOUT < = 1.6V: 2.2V < = VIN < = 6.V).2.1 %/V sinusoidal Ripple.5Vp-p f=1khz 7 RR Ripple Rejection VIN VOUT=1.V, IOUT=3mA f=1khz 65 db VOUT < = 1.7V, VIN VOUT=1.2V, f=1khz IOUT=3mA (VOUT > = 2.5V) 6 VIN Input Voltage 2 6 V Output Voltage IOUT=3mA ppm Temperature Coefficient 4 C < = Topt < ±1 = 85 C / C ISC Short Current Limit VOUT=V 5 ma ΔVOUT/ΔVIN ΔVOUT/ΔTopt RPD CE Pull-down Resistance MΩ VCEH CE Input Voltage "H" V VCEL CE Input Voltage "L".3 V en Output Noise BW=1Hz to 1kHz 3 μvrms On Resistance of Nch Tr. for Auto-discharge VCE=V 5 Ω (Applied to B version) RLOW V 6

7 VR2 Topt=25 C Symbol Item Conditions Min. Typ. Max. Unit VOUT Output Voltage VIN VOUT=1.V 1mA < = IOUT < = 3mA V IOUT Output Current VIN VOUT=1.V 15 ma ΔVOUT/ΔIOUT Load Regulation VIN VOUT=1.V 1mA < = IOUT < = 15mA VDIF Dropout Voltage IOUT=15mA 15 4 mv VOUT=1.5V.34.6 VOUT=1.6V VOUT=1.7V V < = VOUT < = 2.V V < = VOUT < = 2.7V V < = VOUT < = 4.V ISS Supply Current VIN VOUT=1.V 9 12 μa Istandby Standby Current VIN VOUT=1.V, VCE=GND.1 1. μa Line Regulation IOUT=3mA, VOUT+.5V < = VIN < = 6.V (VOUT < = 1.6V: 2.2V < = VIN < = 6.V).2.1 %/V sinusoidal Ripple.5Vp-p f=1khz 7 RR Ripple Rejection VIN VOUT=1.V, IOUT=3mA f=1khz 65 db VOUT < = 1.7V, VIN VOUT=1.2V, f=1khz IOUT=3mA (VOUT > = 2.5V) 6 VIN Input Voltage 2 6 V ΔVOUT/ΔVIN ΔVOUT/ΔTopt Output Voltage Temperature Coefficient IOUT=3mA 4 C < = Topt < = 85 C ISC Short Current Limit VOUT=V 4 ma RPD CE Pull-down Resistance MΩ VCEH CE Input Voltage "H" V VCEL CE Input Voltage "L".3 V en Output Noise BW=1Hz to 1kHz 3 μvrms On Resistance of Nch Tr. for Auto-discharge VCE=V 5 Ω (Applied to B version) RLOW ±1 V ppm / C 7

8 VR3 Topt=25 C Symbol Item Conditions Min. Typ. Max. Unit VOUT Output Voltage VIN VOUT=1.V 1mA < = IOUT < = 3mA V IOUT Output Current VIN VOUT=1.V 1 ma ΔVOUT/ΔIOUT Load Regulation VIN VOUT=1.V 1mA < = IOUT < = 1mA VDIF Dropout Voltage IOUT=1mA 8 2 mv VOUT=1.5V VOUT=1.6V.22.4 VOUT=1.7V V < = VOUT < = 2.V V < = VOUT < = 2.7V V < = VOUT < = 4.V ISS Supply Current VIN VOUT=1.V 9 12 μa Istandby Standby Current VIN VOUT=1.V, VCE=GND.1 1. μa Line Regulation IOUT=3mA, VOUT+.5V < = VIN < = 6.V (VOUT < = 1.6V: 2.2V < = VIN < = 6.V).2.1 %/V sinusoidal Ripple.5Vp-p f=1khz 7 RR Ripple Rejection VIN VOUT=1.V, IOUT=3mA f=1khz 65 db VOUT < = 1.7V, VIN VOUT=1.2V, f=1khz IOUT=3mA (VOUT > = 2.5V) 6 VIN Input Voltage 2 6 V ΔVOUT/ΔVIN ΔVOUT/ΔTopt Output Voltage Temperature Coefficient IOUT=3mA 4 C < = Topt < = 85 C ISC Short Current Limit VOUT=V 4 ma RPD CE Pull-down Resistance MΩ VCEH CE Input Voltage H V VCEL CE Input Voltage L.3 V en Output Noise BW=1Hz to 1kHz 3 μvrms On Resistance of Nch Tr. for Auto-discharge VCE=V 5 Ω (Applied to B version) RLOW ±1 V ppm / C 8

9 OPERATION R5324xxxxA VDD VOUT1 CE1 Error Amp. Vref Current Limit R1_1 R2_1 VOUT2 Error Amp. R1_2 CE2 CE3 Vref Error Amp. Vref Current Limit Current Limit Fluctuation of each regulator s output voltage, or VOUT1, VOUT2, VOUT3 is detected individually. Then it is put back to an error amplifier through feedback resistors, or R1_1, R2_1, R1_2, R2_2, R1_3, R2_3 and compared with a reference voltage and compensated for the result and make a constant voltage. In each regulator, short protection is made with a current limit circuit and stand-by mode is available by a chip enable circuit. R2_2 R1_3 R2_3 VOUT3 GND 9

10 TYPICAL APPLICATION IOUT1 VDD VOUT1 C2 C1 CE1 R5324x Series CE2 VOUT2 VOUT3 C4 C3 IOUT2 IOUT3 CE3 GND (External Components) Output Capacitor : Ceramic TECHNICAL NOTES When using these ICs, consider the following points: 1.μF or more Phase Compensation In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use a capacitor C2, C3 and C4 with 1.μF or more. If a tantalum capacitor is used, and its ESR (Equivalent Series Resistance) of C2, C3 and C4 is large, the loop oscillation may result. Because of this, select C2, C3 and C4 carefully considering its frequency characteristics. PCB Layout Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor C1 with a capacitance value as much as 1.μF or more between VDD and GND pin, and as close as possible to the pins. Set external components, especially the output capacitor C2, C3 and C4 as close as possible to the ICs, and make wiring as short as possible. 1

11 TEST CIRCUIT IN VDD VOUT1 C2 IOUT1 C1 CE1 R5324x Series CE2 VOUT2 VOUT3 C4 C3 IOUT2 IOUT3 CE3 GND IN ISS C1 VDD CE1 R5324x Series CE2 Basic Test Circuit VOUT1 C1=C2=C3=C4=Ceramic 1.μF CE3 VOUT2 VOUT3 GND C3 Test Circuit for Supply Current C2 C4 C1=C2=C3=C4=Ceramic 1.μF IN VDD VOUT1 C1 IOUT1 P.G. CE1 R5324x Series CE2 VOUT2 VOUT3 C3 C2 IOUT2 IOUT3 CE3 GND C1=C2=C3=Ceramic 1.μF Test Circuit for Ripple Rejection, Input Transient Response 11

12 IN VDD VOUT1 C2 IOUT1a IOUT1b C1 CE1 R5324x Series CE2 VOUT2 VOUT3 C4 C3 IOUT2a IOUT3a IOUT2b IOUT3b CE3 GND C1=C2=C3=C4=Ceramic 1.μF Test Circuit for Load Transient Response 12

13 TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current (Topt=25 C) VIN=1.8V VIN=2.V 1.5V (VR1) 1.5V (VR2/VR3) 1.6 VIN=2.5V VIN=3.1V VIN=3.5V VIN=1.8V VIN=2.V VIN=2.5V V (VR1) 2.8V (VR2/VR3) 3. VIN=3.3V VIN=3.8V VIN=4.5V VIN=4.8V VIN=3.1V VIN=3.3V VIN=3.8V VIN=3.5V VIN=4.8V V (VR1) 4.V (VR2/VR3) 5 VIN=5.V VIN=5.V 4 VIN=4.3V VIN=6.V VIN=4.3V VIN=4.5V VIN=6.V

14 2) Output Voltage vs. Input Voltage (Topt=25 C) V (VR1) 1.5V (VR2/VR3) mA 3mA 5mA V (VR1) 2.8V (VR2/VR3) mA 3mA 5mA mA 3mA 5mA 1mA 3mA 5mA V (VR1) 4.V (VR2/VR3) 4.2 1mA 3mA 4. 1mA 5mA 3mA 5mA

15 3) Dropout Voltage vs. Output Current V (VR1) 1.5V (VR2).5-4 C C V (VR3) 1.6V (VR1).5-4 C C V (VR2) 1.6V (VR3).5-4 C C

16 V (VR1) 1.7V (VR2).5-4 C C V (VR3) 1.8V (VR1).4-4 C C V (VR2) 1.8V (VR3).4-4 C C

17 V (VR1) 2.1V (VR2).4-4 C C R5324x V (VR3) 2.8V (VR1).4-4 C C V (VR2) 2.8V (VR3).4-4 C C

18 V (VR1) 4.V (VR2).4-4 C C V (VR3) -4 C ) Output Voltage vs. Temperature (IOUT=3mA) 1.5V (VR1) VIN=2.5V 1.5V (VR2/VR3) VIN=2.5V Temperature Topt( C) Temperature Topt( C) 18

19 V (VR1) VIN=3.8V 2.8V (VR2/VR3) VIN=3.8V Temperature Topt( C) Temperature Topt( C) V (VR1) VIN=5.V 4.V (VR2/VR3) VIN=5.V Temperature Topt( C) 5) Supply Current vs. Input Voltage (Topt=25 C) Supply Current ISS(μA) Temperature Topt( C) 1.5V 2.8V 1 VR1 VR2/3 Supply Current ISS(μA) VR1 8 6 VR2/

20 1 4.V Supply Current ISS(μA) VR1 VR2/ ) Supply Current vs. Temperature Supply Current ISS(μA) V (VR1) VIN=2.5V 1.5V (VR2/VR3) VIN=2.5V Temperature Topt( C) Supply Current ISS(μA) Temperature Topt( C) 2.8V (VR1) VIN=3.8V 2.8V (VR2/VR3) VIN=3.8V 1 Supply Current ISS(μA) Supply Current ISS(μA) Temperature Topt( C) Temperature Topt( C) 2

21 1 4.V (VR1) VIN=5.V 4.V (VR2/VR3) VIN=5.V 1 Supply Current ISS(μA) Supply Current ISS(μA) Temperature Topt( C) Temperature Topt( C) 7) Dropout Voltage vs. Set Output Voltage (Topt=25 C) VR Set Output Voltage Vreg(V) VR3 1mA 3mA 5mA 1mA 15mA 2mA VR2 1mA 3mA 5mA 1mA Set Output Voltage Vreg(V) 1mA 3mA 5mA 1mA 15mA Set Output Voltage Vreg(V) 21

22 8) Ripple Rejection vs. Frequency (Topt=25 C, COUT =Ceramic 1.μF) 1.5V (VR1) VIN=2.7VDC+.5Vp-p 1.5V (VR1) (IOUT3 dependence) VIN=2.7VDC+.5Vp-p IOUT1=1mA IOUT1=3mA 1 IOUT1=2mA Frequency f(khz) IOUT3=1mA IOUT3=3mA 1 IOUT3=1mA Frequency f(khz) 1.5V (VR2) VIN=2.7VDC+.5Vp-p 1.5V (VR3) VIN=2.7VDC+.5Vp-p IOUT=1mA IOUT=3mA 1 IOUT=15mA Frequency f(khz) IOUT3=1mA IOUT3=3mA 1 IOUT3=1mA Frequency f(khz) 2.8V (VR1) VIN=3.8VDC+.5Vp-p 2.8V (VR1) (IOUT3 dependence) VIN=3.8VDC+.5Vp-p IOUT1=1mA IOUT1=3mA IOUT1=2mA Frequency f(khz) IOUT3=1mA IOUT3=3mA IOUT3=1mA Frequency f(khz) 22

23 2.8V (VR2) VIN=3.8VDC+.5Vp-p 2.8V (VR3) VIN=3.8VDC+.5Vp-p IOUT=1mA IOUT=3mA IOUT=15mA Frequency f(khz) IOUT3=1mA IOUT3=3mA 1 IOUT3=1mA Frequency f(khz) 4.V (VR1) VIN=5.VDC+.5Vp-p 4.V (VR1) (IOUT3 dependence) VIN=5.VDC+.5Vp-p IOUT1=1mA IOUT1=3mA 1 IOUT1=2mA Frequency f(khz) IOUT3=1mA IOUT3=3mA 1 IOUT3=1mA Frequency f(khz) 4.V (VR2) VIN=5.VDC+.5Vp-p 4.V (VR3) VIN=5.VDC+.5Vp-p IOUT=1mA IOUT=3mA IOUT=15mA Frequency f(khz) IOUT3=1mA IOUT3=3mA IOUT3=1mA Frequency f(khz) 23

24 9) Ripple Rejection vs. DC Input Bias (Topt=25 C, COUT=1.μF) V (VR1) IOUT=1mA 2.8V (VR1) IOUT=3mA f=.1khz 1kHz 2 1kHz 1 1kHz f=.1khz 1kHz 2 1kHz 1 1kHz V (VR1) IOUT=5mA 2.8V (VR2) IOUT=1mA f=.1khz 1kHz 2 1kHz 1 1kHz f=.1khz 1kHz 2 1kHz 1 1kHz V (VR2) IOUT=3mA 2.8V (VR2) IOUT=5mA 1 9 f=.1khz 1kHz 8 1kHz 7 1kHz f=.1khz 1kHz 2 1kHz 1 1kHz

25 V (VR3) IOUT=1mA 2.8V (VR3) IOUT=3mA f=.1khz 1kHz 2 1kHz 1 1kHz f=.1khz 1kHz 2 1kHz 1 1kHz R5324x V (VR3) IOUT=5mA f=.1khz 1kHz 1kHz 1kHz

26 1) Line Transient Response (IOUT=3mA, CIN=none, tr=tf=5μs, COUT =Ceramic 1μF) V(VR1) Input Voltage Output Voltage Time T(μs) 2.8V(VR2) Time T(μs) Input Voltage Output Voltage 2.8V(VR3) Input Voltage Output Voltage Time T(μs) 26

27 11) Load Transient Response (CIN=Ceramic 1.μF, COUT=Ceramic 1.μF) R5324D1x R5324D1x IOUT VOUT IOUT2=3mA 2.8 VOUT IOUT3=3mA 2.8 VOUT Time T(μs) Time T(μs) R5324D1x VOUT VOUT Output Current IOUT1(mA) IOUT3=3mA 2.8 VOUT IOUT3 IOUT1=3mA IOUT2=3mA 1 5 Output Current IOUT3(mA) IOUT2 IOUT1=3mA VOUT1 VOUT Output Current IOUT2(mA) VOUT Time T(μs) 27

28 ESR vs. Output Current When using these ICs, consider the following points: The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions when the white noise level is under 4μV (Avg.) are marked as the hatched area in the graph. Measurement conditions Frequency Band : 1Hz to 2MHz Temperature : 4 C to 85 C ESR (Ω) V(VR1) 1.5V(VR2) V(VR3) ESR (Ω) V(VR1) 1 1 ESR (Ω) 1 ESR (Ω)

29 1 2.8V(VR2) 1 2.8V(VR3) 1 1 ESR (Ω) 1 ESR (Ω)

30 Ricoh presented with the Japan Management Quality Award for Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. Ricoh awarded ISO 141 certification. The Ricoh Group was awarded ISO 141 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO 141 certification for all of our business offices. Ricoh completed the organization of the Lead-free production for all of our products. After Apr. 1, 26, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.

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