R5324x Series
Triple LDO
The R5324x Series are CMOS-based triple output LDO regulators. VR1 features 200mA output, VR2 features 150mA output and VR3
features 100mA output. The CE pin can switch each regulator into standby mode.
FEATURES
•
Supply Current (I
SS
) ························Typ. 90μA
×
3 (V
IN
=SET V
OUT
+1V)
•
Output Voltage Accuracy ················± 2%
•
Standby Current (I
standby
) ·················Typ. 0.1μA
×
3 (Same as above, CE1/CE2/CE3="L")
•
Temp. coeff. of Output Voltage ·······Typ.
±
100ppm/°C
•
Dropout Voltage (V
DIF
) ····················VR1 : Typ. 0.23V (I
OUT
=200mA, V
OUT
=2.8V)
•
Line Regulation·······························Typ. 0.02%/V
•
Fold-back Protection Circuit············VR1 : Current limit Typ. 50mA,
VR2 : Typ. 0.22V (I
OUT
=150mA, V
OUT
=2.8V)
•
•
•
VR3 : Typ. 0.15V (I
OUT
=100mA, V
OUT
=2.8V)
Ripple Rejection (RR)·····················Typ. 70dB (f=1kHz)
Typ. 60dB (f=10kHz, V
OUT
=2.8V)
Input Voltage Range (V
IN
) ···············2.0V to 6.0V
Output Voltage Range (V
OUT
)··········1.5V to 4.0V
∗
(internally fixed)
•
•
•
VR2/VR3 : Current limit Typ. 40mA
Auto-Discharge function ·················B Version
Packages ········································DFN(PLP)2527-10,SON-8
Ceramic capacitors can be used. ···1μF or more
∗
) For information about combination of output voltage, please check our website.
BLOCK DIAGRAMS
R5324xxxxA
(Without Auto-Discharge function)
V
DD
R1_1
Error Amp.
Vref
CE1
Current Limit
R2_1
V
OUT2
CE1
Error Amp.
Vref
Current Limit
R2_1
V
OUT2
V
OUT1
V
DD
R1_1
R5324xxxxB
(With Auto-Discharge function)
V
OUT1
R1_2
Error Amp.
Vref
CE2
Current Limit
R2_2
V
OUT3
CE2
Error Amp.
Vref
Current Limit
R1_2
R2_2
V
OUT3
R1_3
Error Amp.
Vref
CE3
Current Limit
R2_3
GND
CE3
Error Amp.
Vref
Current Limit
R1_3
R2_3
GND
SELECTION GUIDES
Package
DFN(PLP)2527-10
SON-8
Quantity per Reel
Part No.
5,000 pcs
R5324K.xxx∗ -TR
3,000 pcs
R5324D.xxx∗ -TR-F
.xxx
: Specify a combination of output voltage for each output using serial
numbers.
: Select from (.A.) without auto-discharge function or
.∗
(.B.) with auto-discharge function.
PACKAGES (Top View)
DFN(PLP)2527-10
10 9
8
7
6
TYPICAL CHARACTERISTICS
R5324D (VR1/VR2/VR3)
∗
SON-8
8
7
6
5
Dropout Voltage vs. Output Current
VR2
VR3
V
OUT
=2.8V
Dropout Voltage V
DIF
(V)
0.30
0.25
0.20
0.15
0.10
0.05
0
0
25
50
75
100
∗
0.30
VR1
V
OUT
=2.8V
0.30
V
OUT
=2.8V
85°C
25°C
-40°C
Dropout Voltage V
DIF
(V)
1
2
3
4
5
1
2
3
4
1
2
3
4
5
6
7
8
9
10
V
DD
∗
1
V
DD
∗
1
CE1
CE2
CE3
GND
NC
V
OUT3
V
OUT2
V
OUT1
0.20
0.15
0.10
0.05
0
0
25
Dropout Voltage V
DIF
(V)
0.25
85°C
25°C
-40°C
0.25
0.20
0.15
0.10
0.05
0
0
25
85°C
25°C
-40°C
1
2
3
4
5
6
7
8
V
DD
CE1
CE2
CE3
GND
V
OUT3
V
OUT2
V
OUT1
50
75 100 125 150 175 200
50
75
100
12 5
150
Output Current I
OUT
(mA)
Output Current I
OUT
(mA)
Output Current I
OUT
(mA)
∗)
The tab and tab suspension leads on back side are substrate level (GND).
∗1)
The V
DD
pin must be wired together when it is mounted on board.
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances
No.EK-104-091101
•
Power source for battery-powered equipment
Triple CMOS LDO Regulator
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