公司名称：深圳市诚芯微科技有限公司

3.5A 180KHz 36V Buck DC to DC Converter With CV/CC Loop









CX8517



Features


General Description

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Wide 8V to 36V Input Voltage Range
Output Adjustable from 1.25V to 32V
Maximum Duty Cycle 100%
Minimum Drop Out 0.3V
Fixed 180KHz Switching Frequency
Maximum 3.5A Switching Current
Internal Optimize Power MOSFET
High efficiency
Excellent line and load regulation
With output constant current loop
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
SOP8-EP package
The CX8517 is a 180 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3.5A 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 over
current protection function is built inside.
When short protection function happens, the
operation frequency will be reduced from
180KHz to 48KHz. An internal compensation


Applications
 Car Charger
block is built in to minimize external
component count.