RP109x Series

LOW NOISE 150mA LDO REGULATOR

Data Sheet / Flyer
Data Sheet * Flyer

The RP109x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function which prolong the battery life.
The line transient response and load transient response of the RP109x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. RP109x Series contributes to the downsizing of the hand-held equipment because it can use the 0.1µF ceramic capacitor.
In addition to SOT-23-5, SC-88A and DFN1010-4 packages, a 0.8mm square ultra compact DFN(PLP)0808-4 package is also available.

Supply Current Typ.50µA
Standby Mode Typ. 0.1µA
Dropout Voltage Typ. 0.25V (IOUT=150mA, VOUT=2.5V)
Ripple Rejection Typ. 75dB (f=1kHz, VOUT=2.5V)
Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C (VOUT<1.8V)
Typ. ±30ppm/°C (VOUT≥1.8V)
Line Regulation Typ. 0.02%/V
Output Voltage Accuracy ±1.0%
Packages DFN(PLP)0808-4, DFN1010-4, SC-88A, SOT-23-5
Input Voltage Range 1.4V to 5.25V
Output Voltage Range 0.8V to 3.6V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Built-in Fold Back Protection Circuit Typ. 40mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC 0.1μF or more
  • Power source for portable communication equipment.
  • Power source for electrical appliances such as cameras, VCRs and camcorders.
  • Power source for battery-powered equipment.
  • Power source for electrical home appliances.
Data Sheet Flyer Package Info. Mark Info. Quality
Assurance Data
RP109x Series RP109x Series DFN(PLP)0808-4 RP109K Reliability
DFN1010-4 RP109L Reliability
SC-88A RP109Q Reliability
SOT-23-5 RP109N Reliability

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