# CL432A: 1.25V Precision Adjustable Shunt Reference / Amplifier

## Features

️· Temperature-Compensated: 50ppm/°C
️· Trimmed 1% Bandgap Reference
️· Internal Amplifier with 150mA Capability
️· Nominal Temperature Range: 0°C to 105°C
️· Low Frequency Dynamic Output Impedance: < 150m
️· Low Output Noise

## Description

️· 3-terminal Adjustable Shunt Regulator
️· Accurate 1.25V bandgap reference with 1% tolerance
️· Offers thermal stability and wide operating current (100mA)
️· Suitable for voltage reference in isolated feedback circuits for 3.0V to 3.3V switching mode power supplies.
️· Operating voltage range: up to 10V

## Ordering Information

Part Number	Package	Temperature Range
CL432ALP	TO-92	0°C to 105°C
CL432AD	8-Pin Plastic SOIC	0°C to 105°C
CL432AVS	SOT-23	0°C to 105°C
CL432AS	SOT-89	0°C to 105°C

## Absolute Maximum Ratings

Parameter	Rating	Unit
VKA (Cathode-Anode Reverse Breakdown)	10	V
IAK (Anode-Cathode Forward Current)	1	A
IKA (Operating Cathode Current)	100	mA
IREF (Reference Input Current)	1	mA
PD (Continuous Power) <br> TO-92 / SOIC / SOT-23 / SOT-89	775 / 750 / 1000 / 200	mW
TJ (Junction Temperature)	150	°C
TSTG (Storage Temperature)	-65 to 150	°C
TL (Lead Temperature, Soldering)	300	°C

## Recommended Conditions

️· VKA (Cathode Voltage): VREF to 10V
️· IK (Cathode Current): 10mA

## Typical Thermal Resistances

Package	θJA (°C/W)	θJC (°C/W)	Typical Derating (mW/°C)
TO-92	160	80	6.3
SOIC	175	45	5.7
SOT-23	575	150	1.7
SOT-89	110	8	9.1

## Electrical Characteristics

️· VREF (Output Voltage): 1.237V - 1.263V (typical 1.250V)
️· Line Regulation: 10-15 mV
️· Load Regulation: 3-6 mV
️· Temperature Deviation: 2-6 mV
️· IREF (Reference Input Current): 3-6 µA
️· IK(MIN) (Min. Cathode Current): 0.6-1 mA
️· Off-State Leakage Current: 0.04 - 0.5 A