RS2596

150KHz, 3A PWM Buck DC/DC Converter

Tel: 886-66296288

‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan

DESCRIPTION

The RS2596 is Monolithic IC that design for a

step-down DC/DC Converter, and own the ability of

driving

a

3A

load

without

additional

transistor

component.

The output version included 3.3V, 5V, 12V and an

adjustable type. It operates at a switching frequency of

150KHz thus allowing smaller sized filter components

than what would be needed with lower frequency

switching

regulators.

Other

features

include

a

guaranteed 4% tolerance on output voltage under

specified input voltage and output load conditions, and

15% on the oscillator frequency. Regarding protected

function,

thermal

shutdown

is

to

prevent

over

temperature operating from damage, and current limit

is against over current operating of the output switch.

FEATURES

 3.3V, 5V, 12V and adjustable

 Adjustable version output voltage range: 1.23-37V

 4% max over line and load conditions

 150KHz 15% fixed switching frequency

 TTL shutdown capability

 Operating voltage can be up to 40V

 Output load current: 3A

 TO220-5, TO263-5 packages

 Low power standby mode

 Thermal-shunt down and current-limit protection

 Built-in switching a transistor on chip, requires only 4

external components

APPLICATIONS

 Simple High-efficiency step-down regulator

 Positive to negative converter

 On-card switching regulators

BLOCK DIAGRAM