300mA Dual LDO with VD
The RP151 Series are CMOS-based dual voltage regulator(LDO) ICs equipped with a voltage
detector(VD).
LDO function has features of high output voltage accuracy, low supply current, low dropout, and high ripple rejection.
Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting
Output Voltage, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage due to built-in transistor with low ON resistance, and a chip enable
function prolongs the battery life of each system. The line transient response and load transient response of
the RP151 Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication
equipment.
The output of built-in voltage detector is Nch open drain type.
The output voltage of these ICs is internally fixed with high accuracy(1%). Since the packages for these ICs
are DFN(PLP)2020-8 package, dual LDO regulators and VD are included in each packages, high density mounting of the
ICs on boards is possible. |
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 Supply Current |
Typ. 24µA×2 (VR1&VR2) |
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| Standby
Current |
Typ. 0.1µA |
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| Dropout Voltage |
Typ. 0.21V (IOUT=300mA,VOUT=2.8V)
Typ. 0.24V (IOUT=300mA,VOUT=2.5V) |
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| Ripple Rejection |
Typ. 80dB (f=1kHz) |
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| Temperature-Drift Coefficient of Output Voltage |
Typ. ±30ppm/°C |
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| Line Regulation |
Typ. 0.02%/V |
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| Output Voltage Accuracy |
±1.0% |
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| Input
Voltage Range |
2.5V to 5.25V |
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| Output
Voltage Range |
1.5V to 3.3V |
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| Package |
DFN(PLP)2020-8 |
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| Built-in
Fold Back Protection Circuit |
Typ. 50mA |
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| Built-in
Auto Discharge function |
B Version |
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| Ceramic
capacitors are recommended to be used with this IC |
CIN=COUT=1.0µF or more |
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Power source for portable communication equipment.
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Power source for electrical appliances such as cameras, VCRs and camcorders.
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Power source for battery-powered equipment.
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| * All PDF files are less than 1MB unless otherwise stated. |
| * If you don't have Adobe Reader, you can download free. |
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Please confirm sample availability with your local contact mentioned in our distributors
list.
| RP151K |
VR1 |
VR2 |
-VDET |
+VDET |
| 001 |
2.8 |
2.8 |
2.562 |
2.646 |
| 002 |
2.8 |
1.8 |
1.647 |
1.701 |
| 005 |
3 |
2.8 |
2.562 |
2.646 |
| 006 |
1.5 |
3.3 |
3.036 |
3.102 |
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Technical Info.
Technical Information on Ricoh Power Management ICs.
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Product Catalog
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| Selection guide is available for download in PDF format. |
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RP151K
Series
