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AHK432 Datasheet, PDF (1/8 Pages) Advanced Analogic Technologies – Adjustable Low Voltage Shunt Regulator | |||
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AHK432
Adjustable Low Voltage Shunt Regulator
General Description
The AHK432 is a low voltage adjustable shunt refer-
ence with thermal stability guaranteed over the full
industrial temperature range. This 3-terminal regula-
tor has an output voltage range that extends from
VREF (1.24V) to 20V, giving designers outstanding
flexibility in the development of power supplies and
instrumentation. With a low operating current of
60µA, the AHK432 is well suited for battery-powered
portable electronic applications. It also has a sharp
turn-on characteristic and a dynamic resistance of
only 50mW making it an excellent replacement for
zener diodes in low tempco designs.
The AHK432 is available in the surface-mount 3 or
5 pin SOT-23, as well as the through hole TO-92.
Three voltage tolerance options are offered in each
package: ±0.5%, ±1%, and ±2%.
Features
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⢠Wide output voltage range (1.24 to 20V)
⢠Operating current from 60µA to 100mA
⢠Low dynamic output resistance of 50mâ¦
⢠±0.5% trimmed voltage reference
⢠10mV typ. VREF deviation, from -40 to +105°C
⢠Surface mount 3 or 5 pin SOT-23 or through-
hole 3 pin TO-92 packages
Applications
⢠Notebook computers
⢠Isolated feedback in switching power supplies
⢠Adjustable and programmable supplies
⢠Linear regulators (External Reference)
⢠Instrumentation
⢠Medical Electronics*
⢠Global voltage reference for multiple power
supplies
Typical Application
IN
RL
AHK432
OUT
R1
Adjustable regulator:
R1 + R2
R2
OUT = VREF
R2
432.2001.11.0.96
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