降压芯片 XL2596T XL2596S XL2576T XL2576S-12 XL2576P

3A 52KHz 40V Buck DC to DC Converter XL2576

General Description
The XL2576 is a 52 KHz fixed frequency PWM buck (step-down) DC/DC converter,
capable of driving a 3A load with high efficiency, low ripple and excellent line and
load regulation. Requiring a minimum number of external components, the regulator
is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
Features
Wide 4.5V to 40V Input Voltage Range
3.3V,5V,12V and adjustable versions
Output Adjustable from 1.23V to 37V
Maximum Duty Cycle 100%
Minimum Drop Out 1.5V
Fixed 52KHz Switching Frequency
3A Constant Output Current Capability
Internal Optimize Power Transistor
High efficiency
Excellent line and load regulation
TTL shutdown capability
ON/OFF pin with hysteresis function
Built in thermal shutdown function
Built in current limit function
Available in TO-220,TO-263 packages
Applications
LCD Monitor and LCD TV
Di*al Photo Frame
Set-up Box
ADSL Modem
Telecom / Networking Equipment