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General Description

The TD1602 is a series of easy to use fixed and adjustable

step-down(buck) switch-mode voltage regulators. These

devices are available in fixed output voltage of 5V, and an

adjustable output version. Both versions are capable of driving a

3A load with excellent line and load regulation.

Requiring a minimum number of external components, these

regulators are simple to use and include internal frequency

compensation, and a fixed-frequency oscillator.

The output voltage is guaranteed to ±3% tolerance under

specified input voltage and output load conditions. The

oscillator frequency is guaranteed to ±15%. External shutdown

is included, featuring typically 80 μA standby current. Self

protection features include a two stage frequency reducing

current limit for the output switch and an over temperature

shutdown for complete protection under fault conditions.

The TD1602 is available in TO-263-5L packages.

Features

? 5V and adjustable output versions

? Output adjustable from 1.23v to 57V

? Fixed 52KHz frequency internal oscillator

? Guaranteed 3A output load current

? Input voltage range up to 60V

? TTL shutdown capability

? Excellent line and load regulation

? High efficiency

? Thermal shutdown and current limit protection

? Available in TO-263 packages

Applications

? Simple High-efficiency step-down regulator

? On-card switching regulators

? Positive to negative converter

? LCD monitor and LCD TV

? DVD recorder and PDP TV

? Battery charger

? Step-down to 3.3V for microprocessors