Nisshinbo RP122K LDO Regulators

Nisshinbo RP122K LDO Regulators provide low output noise, high ripple rejection, and fast performance characteristics achieved by low supply current. These regulators save space by adopting a 4-pin small package without a noise bypass capacitor. Nisshinbo RP122K LDO regulators provide a long duration of operation for battery-powered equipment by a low supply current of 9.5µA. The regulators operate at an input voltage range from 1.7V to 5.25V and at a temperature range from -40°C to +85°C.

Features

High power supply rejection ratio (PSRR) and fast response
Saves space by adopting a 4-pin small package without noise bypass capacitor

Long duration of operation for battery-powered equipment with low 9.5µA supply current
Low noise

Applications

Mobile phones
Tablets
Audio devices
Clock generator components
- Voltage-controlled oscillator (VCO)
- Phase-locked loop (PLL)

Battery-powered equipment
RF modules
Digital cameras
Noise-sensitive devices
- Analog-to-digital converters (ADC)
- Digital-to-analog converters (DAC)

Specifications

1.7V to 5.25V input voltage range
1.2V to 4.8V output voltage range
9.5µA typical supply current
8µV_RMS typical output noise
90dB typical ripple rejection at 1KHz
0.17V typical dropout voltage

Protection
- Thermal shutdown (165°C typical detection temperature)
- Inrush current limit at 250mA (typical) for approximately 700μs after start-up
Ceramic capacitor of 1µF or higher