CAT102
CAT102 is Adjustable Shunt Regulator manufactured by onsemi.
Precision, Adjustable Shunt Regulator (600 m V Reference)
Features
- 600 m V low voltage reference
- ±6 m V initial accuracy
- High PSRR: 45 d B at 300 k Hz
- Better line regulation: 1 m V (VIN from 2.2 V to 18 V)
- Low supply current: 90 µA
- Open drain output
- Directly drives optocouplers
- Industrial temperature range of -40ºC to 85ºC
- Ro HS-pliant 5-lead TSOT23 package
APPLICATION
- SMPS control loop
- Low temperature coefficient voltage reference
- Power management
- Replaces zener diodes
- Isolated DC-to-DC converters
- Network, tele and cellular base station
- Adjustable voltage reference
DESCRIPTION
The CAT102 is a low-voltage reference and amplifier. Designed for the control loop of low-voltage power supplies, the reference voltage has been designed for 600 m V. Over a temperature from -40°C to 85°C, the reference voltage is within 8 m V of the nominal 600m V. In addition, the error amplifier output and the supply voltage pin (IN) are on separate pins.
Power supply rejection is a high 45 d B at 300 k Hz. The output, OUT, can sink 20 m A at a maximum saturation voltage of 250 m V.
When bined with an optocoupler, the CAT102 can be used as an error amplifier that controls the feedback loop in isolated low-output voltage switching power supplies.
For Ordering Information details, see page 7.
FUNCTIONAL DIAGRAM
1 FB
Error Amplifier
VREF +
- 600m V
IN...
