1.25VPrecision Adjustable
Shunt Reference / Amplifier
CORPORATION
Preliminary Product Information
CL432
FEATURES
DESCRIPTION
• Temperature-Compensated: 50ppm/oC
Calogic’s CL432 is a 3-terminal Adjustable Shunt Regulator
highly accurate 1.25V bandgap reference with a 0.5%
tolerance. The device offers thermal stability, wide operating
current (100mA) and an extended temperature range of 0o to
105oC for operation in power supply applications. The CL432
offers a wide operating voltage range of up to 18V and is an
excellent choice for voltage reference requirements in an
isolated feedback circuit for 3.0V to 3.3V switching mode
power supplies. The tight tolerance guarantees a lower
design cost for the power supply manufacturer by virtually
eliminating the need for an extra power supply manufacturing
process of the power supply.
• Trimmed 0.5% Bandgap Reference
• Internal Amplifier with 150mA Capability
• Nominal Temperature Range Extended to 105oC
• Low Frequency Dynamic Output Impedance: < 150m
• Low Output Noise
The device is housed in several package options to meet the
designers criteria.
ORDERING INFORMATION
Part
Package
Temperature Range
CL432LP
CL432D
CL432VS
CL432S
TO-92
8-Pin Plastic SOIC
SOT-23
0 to 105oC
0 to 105oC
0 to 105oC
0 to 105oC
SOT-89
PIN CONFIGURATION (Top View)
TO-92 (LP)
SOIC (D)
CATHODE
ANODE
ANODE
N/C
1
2
3
4
8
7
6
5
REFERENCE
ANODE
CATHODE
ANODE
ANODE
N/C
REFERENCE
1G-33
1G-34
SOT-89 (S)
SOT-23 (VS)
CATHODE
ANODE
CATHODE
ANODE
REFERENCE
REFERENCE
1J-22
1G-35
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025