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