RP102x Series
Low Noise 300mA LDO
The RP102x Series are CMOS-based LDO regulators featuring 300mA output.
Various basic performances of the RP Series have been improved by adopting a new manufacturing process. The RP102x features
supply current as low as 50μA, which is far lower than existing lines. Due to a built-in 0.4Ω (at V
OUT
=2.8V) on-resistor, RP102x can
provide a low dropout voltage. RP102x also features excellent line transient response, ripple rejection at 80dB, and low noise. The
output voltage accuracy is as high as
±
0.8% and the temperature drift coefficient of output voltage is low at
±
20ppm/°C.
FEATURES
•
Supply Current (I
SS
) ························Typ. 50μA (V
IN
=SET V
OUT
+1V)
•
Standby Current (I
standby
) ·················Typ. 0.1μA (Same as above, CE="L")
•
Dropout Voltage (V
DIF
) ····················Typ. 0.12V (I
OUT
=300mA, V
OUT
=2.8V)
•
Ripple Rejection (RR)·····················Typ. 80dB (f=1kHz)
•
Input Voltage Range (V
IN
) ···············1.7V to 5.25V
•
Output Voltage Range (V
OUT
)··········1.2V to 3.3V
∗
(internally fixed)
•
Output Voltage Accuracy ················± 0.8%
•
Temp. coeff. of Output Voltage ·······Typ.
±
20ppm/°C
•
Line Regulation·······························Typ. 0.02%/V
•
Fold-back Protection Circuit ···········Current limit Typ. 50mA
•
Auto-Discharge function ·················D Version
•
Packages ········································WLCSP-4-P2, DFN(PLP)1820-6,
•
SOT-23-5
Ceramic capacitors can be used. ···1μF or more
∗
) For detail, please check our website.
BLOCK DIAGRAMS
RP102xxx1B
(Without Auto-Discharge function)
V
DD
V
OUT
RP102xxx1D
(With Auto-Discharge function)
V
DD
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDES
Package
WLCSP-4-P2
DFN(PLP)1820-6
SOT-23-5
Quantity per Reel
Part No.
5,000 pcs
RP102Z.xx.1.
∗
-TR-F
5,000 pcs
RP102K.xx.1.
∗
-TR
3,000 pcs
RP102N.xx.1.
∗
-TR-F
.xx.
: Specify the output voltage within the range 1.2V (.12.) to 3.3V (.33.).
.∗
: Select from (.B.) without auto-discharge function or
(.D.) with auto-discharge function.
PACKAGES (Top View)
WLCSP-4-P2
4
3
TYPICAL CHARACTERISTIC
SOT-23-5
5
4
DFN(PLP)1820-6
6
5
4
RP102x251x
200
Dropout Voltage vs. Output Current
85°C
25°C
-40°C
∗
Dropout Voltage V
DIF
(mV)
150
100
50
0
1
2
1
2
3
1
2
3
1
2
3
4
V
DD
CE
GND
V
OUT
1
2
3
4
5
6
V
OUT
∗
1
V
OUT
∗
1
GND
CE
V
DD
∗
1
V
DD
∗
1
1
2
3
4
5
V
DD
GND
CE
NC
V
OUT
0
50
100 150 200 250
Output Current I
OUT
(mA)
300
∗)
The tab is substrate level (GND).
∗1)
The V
OUT
pin V
DD
pin must be wired each other when it is mounted on board.
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances
•
Power source for battery-powered equipment
No.EK-146-091101
CMOS LDO Regulator
1. The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
information thereon.
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exporting or otherwise taking out of your country the products or the technical information
described herein.
4. The technical information described in this document shows typical characteristics of and
example application circuits for the products. The release of such information is not to be
construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual
property rights or any other rights.
5. The products listed in this document are intended and designed for use as general electronic
components in standard applications (office equipment, telecommunication equipment,
measuring instruments, consumer electronic products, amusement equipment etc.). Those
customers intending to use a product in an application requiring extreme quality and reliability,
for example, in a highly specific application where the failure or misoperation of the product
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damage arising from misuse or inappropriate use of the products.
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concerning the products or the technical information.
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Electronic Devices Company
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