FP103
Dual Operational Amplifier and Reference Regulator
General Description
The FP103 is a single chip composed of one...
FP103
Dual Operational Amplifier and Reference
Regulator
General Description
The FP103 is a single chip composed of one independent OP-AMP (OPA2) and another OP-AMP (OPA1) with a 2.5V precision voltage reference on non-inverting input. It offers space and low cost in many applications such as the secondary feedback control of power supply, DC/DC converter or adaptor.
The FP103 is designed for
regulator feedback circuit with few external components. The circuit diagram for typical application is shown as below.
Features
Fixed Reference Voltage: 2.5V Reference Voltage Precision: 1% Output Sink Current up to 100mA Low Quiescent Supply Current Wide Operating Voltage Range: 3~32V (+ / -16V) Low Input Offset Voltage Unit Gain Bandwidth: 0.9MHz Package: SOP-8L
Typical Application Circuit
Va
Va Va OPA1
OPA2
VIN FB
VO VREF
PWM Control Board
AC-DC Adaptor Secondary Feedback Circuits
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