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R5324x SERIES  
TRIPLE LDO  
OUTLINE  
NO. EA-099-081006  
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)2527-10, high density mounting of the ICs on  
boards is possible.  
FEATURES  
• Supply Current..................................................................Typ. 90μA (VR1, VR2, VR3)  
• Standby Current................................................................Typ. 0.1μA  
• Output Current ..................................................................Min. 200mA (VR1), 150mA (VR2), 100mA (VR3)  
•
Dropout Voltage ................................................................Typ. 0.23V (VR1) (IOUT=200mA, VOUT=2.8V)  
Typ. 0.22V (VR2) (IOUT=150mA, VOUT=2.8V)  
Typ. 0.15V (VR3) (IOUT=100mA, VOUT=2.8V)  
• Ripple Rejection................................................................Typ. 70dB (f=1kHz), Typ. 65dB (f=10kHz)  
• Input Voltage Range .........................................................2.0V to 6.0V  
• Output Voltage Range.......................................................1.5V to 4.0V  
• Output Voltage Accuracy...................................................±2.0%  
• Temperature-Drift Coefficient of Output Voltage...............Typ. ±100ppm/°C  
• Line Regulation.................................................................Typ.0.02%/V  
•
Packages .........................................................................SON-8, DFN(PLP)2527-10  
• Built-in fold-back protection circuit....................................Typ.50mA (VR1), Typ.40mA (VR2, VR3)  
(Current at short mode)  
• Ceramic capacitors are recommended to be used with this IC .....1.0μF 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
R5324x  
BLOCK DIAGRAMS  
R5324xxxxA  
DD  
V
OUT1  
V
R1_1  
R2_1  
Error Amp.  
Vref  
Current Limit  
OUT2  
V
CE1  
R1_2  
R2_2  
Error Amp.  
Vref  
Current Limit  
CE2  
CE3  
OUT3  
V
R1_3  
R2_3  
Error Amp.  
Vref  
Current Limit  
GND  
R5324xxxxB  
DD  
V
OUT1  
V
R1_1  
R2_1  
Error Amp.  
Vref  
Current Limit  
Current Limit  
Current Limit  
OUT2  
V
CE1  
R1_2  
R2_2  
Error Amp.  
Vref  
CE2  
CE3  
OUT3  
V
R1_3  
R2_3  
Error Amp.  
Vref  
GND  
2
R5324x  
SELECTION GUIDE  
The selection can be made with designating the part number as shown below:  
R5324xxxxx-xx-x ←Part Number  
↑ ↑ ↑ ↑ ↑  
a
b c  
d
e
Code  
Contents  
Designation of Package Type:  
D: SON-8  
a
K: DFN(PLP)2527-10  
Setting Output Voltage (VOUT):  
b
Serial Number for Voltage setting from 001  
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.  
Designation of Mask Option  
c
d
e
A: active high, without auto discharge function* at OFF state.  
B: active high, with auto discharge function* at OFF state.  
Designation of Taping Type:  
Ex. TR (Refer to Taping Specifications; TR type is the standard direction.)  
Designation of composition of pin plating:  
-F  
: Lead free solder plating (SON-8)  
(DFN(PLP)2527-10)  
None : Au plating  
*) When the mode is into standby with CE signal, auto discharge transistor turns on, and it makes the turn-off  
speed faster than normal type.  
3
R5324x  
PIN CONFIGURATIONS  
• SON-8  
• DFN (PLP) 2527-10  
Top View Bottom View  
Top View  
Bottom View  
8
7
6
5
5
6
7
8
10 9 8  
7
6
6
7 8 9 10  
∗
∗
∗
1
2 3  
4
5
5
4 3  
2
1
1
2
3
4
4
3
2
1
PIN DESCRIPTIONS  
• SON-8  
Pin No  
Symbol  
Pin Description  
1
VDD  
Input Pin  
2
CE1  
CE2  
CE3  
GND  
VOUT3  
VOUT2  
VOUT1  
Chip Enable Pin 1  
Chip Enable Pin 2  
Chip Enable Pin 3  
Ground Pin  
3
4
5
6
Output Pin 3  
7
8
Output Pin 2  
Output Pin 1  
*) Tab in the  
parts have GND level. (They are connected to the back side of this IC.)  
Do not connect to other wires or land patterns.  
• DFN(PLP)2527-10  
Pin No  
Symbol  
VDD  
Pin Description  
1
Input Pin  
2
VDD  
Input Pin  
3
CE1  
CE2  
CE3  
GND  
NC  
Chip Enable Pin 1  
Chip Enable Pin 2  
Chip Enable Pin 3  
Ground Pin  
4
5
6
7
No Connection  
Output Pin 3  
Output Pin 2  
Output Pin 1  
8
VOUT3  
VOUT2  
VOUT1  
9
10  
*) Tab in the  
parts have GND level. (They are connected to the back side of this IC.)  
Do not connect to other wires or land patterns.  
Both VDD pins must be connected each other at same level as short as possible.  
4
R5324x  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
Item  
Rating  
6.5  
Unit  
V
VIN  
Input Voltage  
CE  
Input Voltage (CE Pin)  
-0.3 to 6.5  
-0.3 to VIN+0.3  
230  
V
VOUT  
IOUT1  
IOUT2  
IOUT3  
Output Voltage  
V
Output Current (VOUT1)  
mA  
mA  
mA  
Output Current (VOUT2)  
180  
Output Current (VOUT3)  
180  
Power Dissipation (SON-8)*  
Power Dissipation (DFN(PLP)2527-10)*  
Operating Temperature Range  
Storage Temperature Range  
480  
PD  
mW  
910  
Topt  
Tstg  
-40 to 85  
-55 to 125  
°C  
°C  
∗) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.  
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.  
5
R5324x  
ELECTRICAL CHARACTERISTICS  
• R5324xxxxA/B  
VR1  
Topt=25°C  
Symbol  
Item  
Conditions  
Min.  
×0.98  
200  
Typ.  
Max.  
Unit  
VIN−VOUT=1.0V  
VOUT  
Output Voltage  
V
×1.02  
1mA  
IOUT  
30mA  
=
=
IOUT  
Output Current  
mA  
mV  
VIN−VOUT=1.0V  
Load Regulation  
25  
50  
ΔVOUT/ΔIOUT  
VIN−VOUT=1.0V, 1mA  
IOUT  
200mA  
=
=
0.36  
0.34  
0.33  
0.31  
0.28  
0.23  
90  
0.65  
0.58  
0.56  
0.53  
0.46  
0.35  
140  
1.0  
VOUT=1.5V  
VOUT=1.6V  
VOUT=1.7V  
VDIF  
Dropout Voltage  
V
IOUT=200mA  
1.8V  
VOUT  
VOUT  
VOUT  
2.0V  
2.7V  
4.0V  
=
=
=
=
=
=
2.1V  
2.8V  
ISS  
Supply Current  
Standby Current  
VIN−VOUT=1.0V  
VIN−VOUT=1.0V, VCE=GND  
IOUT=30mA, VOUT+0.5V VIN 6.0V  
μA  
μA  
Istandby  
0.1  
=
=
Line Regulation  
0.02  
70  
0.10  
%/V  
ΔVOUT/ΔVIN  
(VOUT 1.6V: 2.2V VIN 6.0V)  
=
=
=
sinusoidal Ripple  
0.5Vp-p  
f=1kHz  
VIN−VOUT=1.0V,  
IOUT=30mA  
65  
f=10kHz  
RR  
Ripple Rejection  
Input Voltage  
dB  
V
∗VOUT 1.7V,  
=
f=10kHz  
VIN−VOUT=1.2V,  
IOUT=30mA  
60  
>
(VOUT 2.5V)  
=
VIN  
2
6
ppm  
/°C  
Output Voltage  
Temperature Coefficient  
IOUT=30mA  
ΔVOUT/ΔTopt  
±100  
−40°C Topt 85°C  
=
=
Ilim  
RPD  
VCEH  
VCEL  
en  
Short Current Limit  
CE Pull-down Resistance  
CE Input Voltage "H"  
CE Input Voltage "L"  
Output Noise  
50  
mA  
MΩ  
V
VOUT=0V  
0.7  
1.5  
0
2.0  
5.0  
6.0  
0.3  
V
30  
50  
μVrms  
BW=10Hz to 100kHz  
VCE=0V  
On Resistance of Nch Tr.  
for Auto-discharge  
(Applied to B version)  
RLOW  
Ω
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.  
6
R5324x  
VR2  
Symbol  
Topt=25°C  
Item  
Conditions  
Min.  
×0.98  
150  
Typ. Max.  
Unit  
VIN−VOUT=1.0V  
VOUT  
Output Voltage  
V
×1.02  
1mA  
IOUT  
30mA  
=
=
IOUT  
Output Current  
mA  
mV  
VIN−VOUT=1.0V  
VIN−VOUT=1.0V  
Load Regulation  
15  
40  
ΔVOUT/ΔIOUT  
1mA  
IOUT  
150mA  
=
=
0.34  
0.32  
0.31  
0.29  
0.26  
0.22  
90  
0.60  
0.56  
0.53  
0.50  
0.44  
0.33  
120  
VOUT=1.5V  
VOUT=1.6V  
VOUT=1.7V  
VDIF  
Dropout Voltage  
V
IOUT=150mA  
1.8V  
2.1V  
2.8V  
VOUT  
VOUT  
VOUT  
2.0V  
2.7V  
4.0V  
=
=
=
=
=
=
ISS  
Supply Current  
Standby Current  
VIN−VOUT=1.0V  
μA  
μA  
Istandby  
0.1  
1.0  
VIN−VOUT=1.0V, VCE=GND  
IOUT=30mA,  
Line Regulation  
0.02  
0.10  
%/V  
ΔVOUT/ΔVIN  
VOUT+0.5V  
VIN  
6.0V  
=
=
(VOUT 1.6V: 2.2V VIN 6.0V)  
=
=
=
sinusoidal Ripple  
0.5Vp-p  
VIN−VOUT=1.0V,  
IOUT=30mA  
70  
65  
f=1kHz  
f=10kHz  
RR  
Ripple Rejection  
Input Voltage  
dB  
V
∗VOUT 1.7V,  
VIN−VOUT=1.2V,  
IOUT=30mA  
=
f=10kHz  
60  
>
(VOUT 2.5V)  
=
VIN  
2
6
ppm  
/°C  
Output Voltage  
Temperature Coefficient  
IOUT=30mA  
ΔVOUT/ΔTopt  
±100  
−40°C Topt 85°C  
=
=
Ilim  
RPD  
VCEH  
VCEL  
en  
Short Current Limit  
CE Pull-down Resistance  
CE Input Voltage "H"  
CE Input Voltage "L"  
Output Noise  
40  
mA  
MΩ  
V
VOUT=0V  
0.7  
1.5  
0
2.0  
5.0  
6.0  
0.3  
V
30  
50  
μVrms  
BW=10Hz to 100kHz  
VCE=0V  
On Resistance of Nch Tr.  
for Auto-discharge  
(Applied to B version)  
RLOW  
Ω
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.  
7
R5324x  
VR3  
Topt=25°C  
Symbol  
Item  
Conditions  
Min.  
×0.98  
100  
Typ.  
Max.  
Unit  
VIN−VOUT=1.0V  
VOUT  
Output Voltage  
V
×1.02  
1mA  
IOUT  
30mA  
=
=
IOUT  
Output Current  
mA  
mV  
VIN−VOUT=1.0V  
VIN−VOUT=1.0V  
Load Regulation  
8
20  
ΔVOUT/ΔIOUT  
1mA  
IOUT  
100mA  
=
=
0.24  
0.22  
0.21  
0.20  
0.18  
0.15  
90  
0.44  
0.40  
0.38  
0.37  
0.33  
0.25  
120  
VOUT=1.5V  
VOUT=1.6V  
VOUT=1.7V  
VDIF  
Dropout Voltage  
V
IOUT=100mA  
1.8V  
2.1V  
2.8V  
VOUT  
VOUT  
VOUT  
2.0V  
2.7V  
4.0V  
=
=
=
=
=
=
ISS  
Supply Current  
Standby Current  
VIN−VOUT=1.0V  
μA  
μA  
Istandby  
0.1  
1.0  
VIN−VOUT=1.0V, VCE=GND  
IOUT=30mA,  
Line Regulation  
0.02  
0.10  
%/V  
ΔVOUT/ΔVIN  
VOUT+0.5V  
VIN  
6.0V  
=
=
(VOUT 1.6V: 2.2V VIN 6.0V)  
=
=
=
sinusoidal Ripple  
0.5Vp-p  
VIN−VOUT=1.0V,  
IOUT=30mA  
70  
65  
f=1kHz  
f=10kHz  
RR  
Ripple Rejection  
Input Voltage  
dB  
V
∗VOUT 1.7V,  
VIN−VOUT=1.2V,  
IOUT=30mA  
=
f=10kHz  
60  
>
(VOUT 2.5V)  
=
VIN  
2
6
ppm  
/°C  
Output Voltage  
Temperature Coefficient  
IOUT=30mA  
ΔVOUT/ΔTopt  
±100  
−40°C Topt 85°C  
=
=
Ilim  
RPD  
VCEH  
VCEL  
en  
Short Current Limit  
CE Pull-down Resistance  
CE Input Voltage “H”  
CE Input Voltage “L”  
Output Noise  
40  
mA  
MΩ  
V
VOUT=0V  
0.7  
1.5  
0
2.0  
5.0  
6.0  
0.3  
V
30  
50  
μVrms  
BW=10Hz to 100kHz  
VCE=0V  
On Resistance of Nch Tr.  
for Auto-discharge  
(Applied to B version)  
RLOW  
Ω
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.  
8
R5324x  
OPERATION  
R5324xxxxA  
DD  
V
OUT1  
V
R1_1  
R2_1  
Error Amp.  
Vref  
Current Limit  
OUT2  
V
CE1  
R1_2  
R2_2  
Error Amp.  
Vref  
Current Limit  
CE2  
CE3  
OUT3  
V
R1_3  
R2_3  
Error Amp.  
Vref  
Current Limit  
GND  
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.  
9
R5324x  
TYPICAL APPLICATION  
OUT1  
I
OUT2  
I
OUT3  
I
DD  
V
OUT1  
V
C2  
CE1  
OUT2  
V
C3  
R5324x  
Series  
C1  
CE2  
OUT3  
V
C4  
GND  
CE3  
(External Components)  
Output Capacitor : Ceramic  
1.0μF or more  
TECHNICAL NOTES  
When using these ICs, consider the following points:  
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 1.0μF 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 1.0μF 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.  
10  
R5324x  
TEST CIRCUIT  
OUT1  
I
OUT2  
I
OUT3  
I
IN  
DD  
V
OUT1  
V
C2  
CE1  
OUT2  
V
C3  
R5324x  
Series  
C1  
CE2  
OUT3  
V
C4  
GND  
CE3  
C1=C2=C3=C4=Ceramic 1.0μF  
Basic Test Circuit  
SS  
I
IN  
DD  
V
OUT1  
V
C2  
CE1  
OUT2  
V
C3  
R5324x  
Series  
C1  
CE2  
OUT3  
V
C4  
GND  
CE3  
C1=C2=C3=C4=Ceramic 1.0μF  
Test Circuit for Supply Current  
OUT1  
I
OUT2  
I
OUT3  
I
IN  
DD  
V
OUT1  
V
C1  
CE1  
OUT2  
V
C2  
R5324x  
Series  
CE2  
P.G.  
OUT3  
V
C3  
GND  
CE3  
C1=C2=C3=Ceramic 1.0μF  
Test Circuit for Ripple Rejection, Input Transient Response  
11  
R5324x  
OUT1a  
I
OUT2a  
I
OUT3a  
I
IN  
DD  
V
OUT1  
V
C2  
OUT1b  
I
OUT2b  
I
OUT3b  
I
CE1  
OUT2  
V
C3  
R5324x  
Series  
CE2  
C1  
OUT3  
V
C4  
GND  
CE3  
C1=C2=C3=C4=Ceramic 1.0μF  
Test Circuit for Load Transient Response  
12  
R5324x  
TYPICAL CHARACTERISTICS  
1) Output Voltage vs. Output Current (Topt=25°C)  
1.5V (VR1)  
1.5V (VR2/VR3)  
1.6  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
1.4  
V
IN=1.8V  
IN=2.0V  
V
IN=1.8V  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
V
V
IN=2.0V  
V
IN=3.5V  
V
IN=3.5V  
V
IN=2.5V  
V
IN=2.5V  
300  
0
100  
200  
300  
400  
500  
0
100  
200  
400  
500  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
2.8V (VR1)  
2.8V (VR2/VR3)  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
V
IN=3.1V  
IN=3.3V  
IN=3.8V  
V
IN=3.1V  
V
V
IN=3.3V  
V
VIN=4.8V  
V
IN=3.8V  
V
IN=4.8V  
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
4.0V (VR1)  
4.0V (VR2/VR3)  
IN=5.0V  
5
4
3
2
1
0
5
4
3
2
1
0
V
IN=5.0V  
V
V
IN=4.3V  
V
IN=4.3V  
V
IN=4.5V  
V
IN=4.5V  
V
IN=6.0V  
V
IN=6.0V  
400  
0
100  
200  
300  
400  
500  
0
100  
200  
300  
500  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
13  
R5324x  
2) Output Voltage vs. Input Voltage (Topt=25°C)  
1.5V (VR1)  
1.5V (VR2/VR3)  
1.6  
1.6  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
1.5  
1.4  
1.3  
1.2  
1mA  
30mA  
50mA  
1mA  
30mA  
50mA  
1.1  
1.0  
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
2.8V (VR1)  
2.8V (VR2/VR3)  
2.9  
2.8  
2.7  
2.6  
2.5  
2.4  
2.3  
2.2  
2.1  
2.0  
2.9  
2.8  
2.7  
2.6  
2.5  
2.4  
2.3  
2.2  
2.1  
2.0  
1mA  
30mA  
50mA  
1mA  
30mA  
50mA  
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
4.0V (VR1)  
4.0V (VR2/VR3)  
4.2  
4.0  
3.8  
3.6  
3.4  
3.2  
3.0  
4.2  
4.0  
3.8  
3.6  
3.4  
3.2  
3.0  
1mA  
30mA  
50mA  
1mA  
30mA  
50mA  
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
14  
R5324x  
3) Dropout Voltage vs. Output Current  
1.5V (VR1)  
1.5V (VR2)  
0.5  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0.4  
0.3  
0.2  
0.1  
0.0  
0
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
0
25  
50  
75  
100 125 150  
Output Current IOUT(mA)  
1.5V (VR3)  
1.6V (VR1)  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0
25  
50  
75  
100  
0
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
1.6V (VR2)  
1.6V (VR3)  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0
25  
50  
75  
100 125 150  
0
25  
50  
75  
100  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
15  
R5324x  
1.7V (VR1)  
1.7V (VR2)  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0
0
0
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
0
0
0
25  
50  
75  
100 125 150  
Output Current IOUT(mA)  
1.7V (VR3)  
1.8V (VR1)  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
25  
50  
75  
100  
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
1.8V (VR2)  
1.8V (VR3)  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
25  
50  
75  
100 125 150  
25  
50  
75  
100  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
16  
R5324x  
2.1V (VR1)  
2.1V (VR2)  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0
0
0
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
0
0
0
25  
50  
75  
100 125 150  
Output Current IOUT(mA)  
2.1V (VR3)  
2.8V (VR1)  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
25  
50  
75  
100  
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
2.8V (VR2)  
2.8V (VR3)  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
25  
50  
75  
100 125 150  
25  
50  
75  
100  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
17  
R5324x  
4.0V (VR1)  
4.0V (VR2)  
0.40  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
85˚C  
25˚C  
-40˚C  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
0
25 50 75 100 125 150 175 200  
Output Current IOUT(mA)  
0
25  
50  
75  
100 125 150  
Output Current IOUT(mA)  
4.0V (VR3)  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
85˚C  
25˚C  
-40˚C  
0
25  
50  
75  
100  
Output Current IOUT(mA)  
4) Output Voltage vs. Temperature (IOUT=30mA)  
1.5V (VR1) VIN=2.5V  
1.5V (VR2/VR3) VIN=2.5V  
1.54  
1.54  
1.53  
1.52  
1.51  
1.50  
1.49  
1.48  
1.47  
1.46  
1.53  
1.52  
1.51  
1.50  
1.49  
1.48  
1.47  
1.46  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
18  
R5324x  
2.8V (VR1) VIN=3.8V  
2.8V (VR2/VR3) VIN=3.8V  
2.86  
2.84  
2.82  
2.80  
2.78  
2.76  
2.74  
2.86  
2.84  
2.82  
2.80  
2.78  
2.76  
2.74  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
4.0V (VR1) VIN=5.0V  
4.0V (VR2/VR3) VIN=5.0V  
4.08  
4.06  
4.04  
4.02  
4.00  
3.98  
3.96  
3.94  
3.92  
4.08  
4.06  
4.04  
4.02  
4.00  
3.98  
3.96  
3.94  
3.92  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
5) Supply Current vs. Input Voltage (Topt=25°C)  
1.5V  
2.8V  
100  
100  
80  
60  
40  
20  
0
VR1  
VR1  
80  
60  
VR2/3  
VR2/3  
40  
20  
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
19  
R5324x  
4.0V  
100  
80  
60  
40  
20  
0
VR1  
VR2/3  
0
1
2
3
4
5
6
Input Voltage VIN(V)  
6) Supply Current vs. Temperature  
1.5V (VR1) VIN=2.5V  
1.5V (VR2/VR3) VIN=2.5V  
100  
100  
80  
60  
40  
20  
0
80  
60  
40  
20  
0
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
2.8V (VR1) VIN=3.8V  
2.8V (VR2/VR3) VIN=3.8V  
100  
100  
80  
60  
40  
20  
0
80  
60  
40  
20  
0
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
20  
R5324x  
4.0V (VR1) VIN=5.0V  
4.0V (VR2/VR3) VIN=5.0V  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
Temperature Topt(˚C)  
Temperature Topt(˚C)  
7) Dropout Voltage vs. Set Output Voltage (Topt=25°C)  
VR1  
VR2  
0.6  
0.6  
10mA  
30mA  
50mA  
100mA  
150mA  
200mA  
10mA  
30mA  
50mA  
100mA  
150mA  
0.5  
0.4  
0.3  
0.5  
0.4  
0.3  
0.2  
0.1  
0
0.2  
0.1  
0
1
2
3
4
1
2
3
4
Set Output Voltage Vreg(V)  
Set Output Voltage Vreg(V)  
VR3  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
10mA  
30mA  
50mA  
100mA  
1
2
3
4
Set Output Voltage Vreg(V)  
21  
R5324x  
8) Ripple Rejection vs. Frequency (Topt=25°C, COUT =Ceramic 1.0μF)  
1.5V (VR1) VIN=2.7VDC+0.5Vp-p  
90  
1.5V (VR1) (IOUT3 dependence) VIN=2.7VDC+0.5Vp-p  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
I
I
I
OUT1=1mA  
OUT1=30mA  
OUT1=200mA  
0.1  
1
10  
100  
100  
100  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
1.5V (VR2) VIN=2.7VDC+0.5Vp-p  
1.5V (VR3) VIN=2.7VDC+0.5Vp-p  
90  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
I
I
I
OUT=1mA  
OUT=30mA  
OUT=150mA  
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
0.1  
1
10  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
2.8V (VR1) VIN=3.8VDC+0.5Vp-p  
2.8V (VR1) (IOUT3 dependence) VIN=3.8VDC+0.5Vp-p  
90  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
I
I
I
OUT1=1mA  
OUT1=30mA  
OUT1=200mA  
20  
10  
0
0.1  
1
10  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
22  
R5324x  
2.8V (VR2) VIN=3.8VDC+0.5Vp-p  
90  
2.8V (VR3) VIN=3.8VDC+0.5Vp-p  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
I
I
I
OUT=1mA  
OUT=30mA  
OUT=150mA  
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
0.1  
1
10  
100  
100  
100  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
4.0V (VR1) VIN=5.0VDC+0.5Vp-p  
90  
4.0V (VR1) (IOUT3 dependence) VIN=5.0VDC+0.5Vp-p  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
I
I
I
OUT1=1mA  
OUT1=30mA  
OUT1=200mA  
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
20  
10  
0
0.1  
1
10  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
4.0V (VR2) VIN=5.0VDC+0.5Vp-p  
90  
4.0V (VR3) VIN=5.0VDC+0.5Vp-p  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
I
I
I
OUT=1mA  
OUT=30mA  
OUT=150mA  
I
I
I
OUT3=1mA  
OUT3=30mA  
OUT3=100mA  
0.1  
1
10  
0.1  
1
10  
100  
Frequency f(kHz)  
Frequency f(kHz)  
23  
R5324x  
9) Ripple Rejection vs. DC Input Bias (Topt=25°C, COUT=1.0μF)  
2.8V (VR1) IOUT=1mA  
2.8V (VR1) IOUT=30mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f=0.1kHz  
1kHz  
10kHz  
f=0.1kHz  
1kHz  
10kHz  
100kHz  
100kHz  
2.9  
3.0  
3.1  
3.2  
3.3  
3.3  
3.3  
2.9  
3.0  
3.1  
3.2  
3.3  
3.3  
3.3  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
2.8V (VR1) IOUT=50mA  
2.8V (VR2) IOUT=1mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f=0.1kHz  
1kHz  
10kHz  
100kHz  
f=0.1kHz  
1kHz  
10kHz  
100kHz  
2.9  
3.0  
3.1  
3.2  
2.9  
3.0  
3.1  
3.2  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
2.8V (VR2) IOUT=30mA  
2.8V (VR2) IOUT=50mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f=0.1kHz  
1kHz  
10kHz  
100kHz  
f=0.1kHz  
1kHz  
10kHz  
100kHz  
2.9  
3.0  
3.1  
3.2  
2.9  
3.0  
3.1  
3.2  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
24  
R5324x  
2.8V (VR3) IOUT=1mA  
2.8V (VR3) IOUT=30mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f=0.1kHz  
1kHz  
10kHz  
f=0.1kHz  
1kHz  
10kHz  
100kHz  
100kHz  
2.9  
3.0  
3.1  
3.2  
3.3  
2.9  
3.0  
3.1  
3.2  
3.3  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
2.8V (VR3) IOUT=50mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f=0.1kHz  
1kHz  
10kHz  
100kHz  
2.9  
3.0  
3.1  
3.2  
3.3  
Input Voltage VIN(V)  
25  
R5324x  
10) Line Transient Response (IOUT=30mA, CIN=none, tr=tf=5μs, COUT =Ceramic 1μF)  
2.8V(VR1)  
2.85  
2.84  
2.83  
2.82  
2.81  
2.80  
2.79  
6
5
4
3
2
1
0
Input Voltage  
Output Voltage  
0
0
0
10  
10  
10  
20  
20  
20  
30  
30  
30  
40  
40  
40  
50  
60  
60  
60  
70  
70  
70  
80  
90  
100  
Time T(μs)  
2.8V(VR2)  
2.85  
2.84  
2.83  
2.82  
2.81  
2.80  
2.79  
6
5
4
3
2
1
0
Input Voltage  
Output Voltage  
50  
80  
90  
100  
Time T(μs)  
2.8V(VR3)  
2.85  
2.84  
2.83  
2.82  
2.81  
2.80  
2.79  
6
5
4
3
2
1
0
Input Voltage  
Output Voltage  
50  
80  
90  
100  
Time T(μs)  
26  
R5324x  
11) Load Transient Response (CIN=Ceramic 1.0μF, COUT=Ceramic 1.0μF)  
R5324D001x R5324D001x  
2.95  
2.90  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
150  
100  
50  
2.95  
2.90  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
150  
100  
50  
I
OUT1  
IOUT2  
I
OUT1=30mA  
0
0
V
OUT1  
V
V
OUT1  
I
I
OUT2=30mA  
OUT2  
V
V
OUT2  
OUT3=30mA  
IOUT3=30mA  
V
OUT3  
OUT3  
0
5
10  
15  
20  
0
5
10  
15  
20  
Time T(μs)  
Time T(μs)  
R5324D001x  
2.95  
2.90  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
2.85  
2.80  
2.75  
150  
100  
50  
I
OUT3  
V
OUT1  
OUT2  
OUT3  
0
I
I
OUT1=30mA  
V
V
OUT2=30mA  
0
5
10  
Time T(μs)  
15  
20  
27  
R5324x  
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 40μV (Avg.) are marked as the hatched area in the graph.  
Measurement conditions  
Frequency Band : 10Hz to 2MHz  
Temperature  
: −40°C to 85°C  
1.5V(VR1)  
1.5V(VR2)  
100  
10  
1
100  
10  
1
0.1  
0.1  
0.01  
0.01  
0
50  
100  
150  
200  
0
50  
100  
150  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
1.5V(VR3)  
2.8V(VR1)  
100  
10  
1
100  
10  
1
0.1  
0.1  
0.01  
0.01  
0
20  
40  
60  
80  
100  
0
50  
100  
150  
200  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
28  
R5324x  
2.8V(VR2)  
2.8V(VR3)  
100  
10  
100  
10  
1
1
0.1  
0.01  
0.1  
0.01  
0
50  
100  
150  
0
20  
40  
60  
80  
100  
Output Current IOUT(mA)  
Output Current IOUT(mA)  
29