CP432 Datasheet, PDF (1/10 Pages) Ceramate Technical – Adjustable Precision Shunt Regulator

CP432
Adjustable Precision Shunt Regulator
Features
- Precision reference voltage
CP432 : 1.24V ± 1%
CP432A : 1.24V ± 0.5%
- Sink current capability: 200mA.
- Minimum cathode current for regulation: 150µA
- Equivalent full-range temp coefficient: 30 ppm/^oC
- Fast turn-on Response.
- Low dynamic output impedance: 0.2Ω
- Programmable output voltage to 20v
- Low output noise
- Packages: SOT89, SOT23, TO92
Typical Application Circuit
General Description
The CP432/432A are 3-terminal adjustable
precision shunt regulators with guaranteed stable
temperature over the applicable extended
commercial temperature range. The output voltage
may be set at any level greater than 1.24\/ (V_REF) up
to 20V merely by selecting two external resistors
that act as a voltage divider network. These devices
have a typical output impedance of 0.2Ω. Active
output circuitry provides very sharp turn-on
characteristics, making these devices excellent
improved replacements for Zener diodes in many
applications.
The precise +/- 1% reference voltage tolerance of
the CP432/432A make it possible in many
applications to avoid the use of a variable resistor,
consequently saving cost and eliminating drift and
reliability problems associated with it.
VIN
+
Cin
CP432
VOUT
R1
+
Cout
R2
VOUT = (1+R1/R2)VREF
Precision Regulator
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
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Rev 1.1 Jan. 19,2005