General Description
The AHK432 is a low voltage adjustable shunt reference with thermal stability guaranteed over the full industrial temperature range. This three-terminal regulator 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 batterypowered portable electronic applications. It also has a sharp turn-on characteristic and a dynamic resistance of only 50mΩ, making it an excellent replacement for zener diodes in low tempco designs.
The AHK432 is available in the Pb-free, surfacemount 3- or 5-pin SOT23, as well as the through hole TO-92. Three voltage tolerance options are offered in each package: ±0.5%, ±1%, and ±2%.
Features
• Wide Output Voltage Range (1.24V to 20V)
• Operating Current From 60μA to 100mA
• Low Dynamic Output Resistance of 50mΩ
• ±0.5% Trimmed Voltage Reference
• 10mV (Typical) VREF Deviation, From -40°C to +105°C
• Surface Mount 3- or 5-Pin SOT23 or Through-Hole 3-Pin TO-92 Package
Applications
• Adjustable and Programmable Supplies
• Global Voltage Reference for Multiple Power Supplies
• Instrumentation
• Isolated Feedback in Switching Power Supplies
• Linear Regulators (External Reference)
• Medical Electronics (see Endnote, page 10)
• Notebook Computers
Click to view :
AHK432.pdf
