TS4436| Datasheet

TS4436, TS4436AICT, TS4436ICT

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TS4436
Adjustable 0.6V Open Collector Shunt Voltage Reference

Internal 0.6V 0.5% precision Low output saturation voltage 75mV max. between SINK and GND Low current consumption: 150uA Low supply voltage 1.7V Industrial temperature range: -40 to +85 C 150ppm/ C temperature coefficient Lead free available
1 PGND REF 5

SC70 (Plastic Micropackage)

Pin connections (top view)

Description
The TS4436 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS). It integrates a 0.6V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4436's operating mode is similar to the well-known standard voltage reference, the TL431. It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin. TS4436 features an open collector transistor with an ultra-low saturation voltage. This feature allows it to be used in series with the optocoupler in an SMPS for regulation up to a 1.8V output voltage.

GND

SINK

V CC

Applications

Low voltage switch mode power supplies Isolated DC/DC converter Computers Low voltage discrete regulators

Order Codes
Part Number TS4436AICT TS4436ICT Accuracy 0.5% -40, +85 C 1% SC70 Tape & Reel L21 Temperature Range Package Packing Marking L22

March 2006

Revision 1

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