FP115

Dual OPA Circuit with Precision Shunt Regulator

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Rev. 0.6

1/9

SHUNT

REGULATOR

2K

OUT

GND

CS

General Description

The FP115 incorporates dual operation amplifier and a precision shunt regulator (typ. 1.25V). The

main function of FP115 is CV control and OC sense for low power RCC circuits. The small package

SOT-23-5L is suitable for mini-size AC-DC power supply or adapter applications.

Features



Fixed Reference Voltage: 1.25V



Reference Voltage Precision: 2%



Output Sink Current: 5mA



Current Consumption: 2.4mA



Output Inverting Voltage Deviation: OPA1: 3mV, OPA2: 1mV



Wide Operation Voltage Range: 2.5V ~ 20V



Package: SOT23-5L

Applications



Charger



Switching Power Supply



AC Adapter

Function Block Diagram