XL4005 반도체 회로 부품 판매점
5A 300KHz 32V Buck DC to DC Converter
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 XLSEMI |
5A 300KHz 32V Buck DC to DC Converter
Datasheet
XL4005
Features
n Wide 5V to 32V Input Voltage Range
n Output Adjustable from 0.8V to 30V
n Maximum Duty Cycle 100%
n Minimum Drop Out 0.6V
n Fixed 300KHz Switching Frequency
n 5A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency
n Excellent line and load regulation
n TTL shutdown capability
n EN pin with hysteresis function
n Built in thermal shutdown function
n Built in current limit function
n Built in output short protection function
n Available in TO-263 package
Applications
n LCD Monitor and LCD TV
n Digital Photo Frame
n Set-up Box
n ADSL Modem
n Telecom / Networking Equipment
General Description
The XL4005 is a 300KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 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 enable
function, an over current protection function
is built inside. When short protection function
happens, the operation frequency will be
reduced from 300KHz to 60KHz. An internal
compensation block is built in to minimize
external component count.
Rev 2.1
Figure1. Package Type of XL4005
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Free Datasheet http://www.datasheet4u.net/
5A 300KHz 32V Buck DC to DC Converter
Pin Configurations
Datasheet
XL4005
Figure2. Pin Configuration of XL4005 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5
Pin Name
GND
FB
SW
EN
VIN
Description
Ground Pin. Care must be taken in layout. This pin should be
placed outside of the Schottky Diode to output capacitor
ground path to prevent switching current spikes from inducing
voltage noise into XL4005.
Feedback Pin (FB). Through an external resistor divider
network, FB senses the output voltage and regulates it. The
feedback threshold voltage is 0.8V.
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
Enable Pin. Drive EN pin high to turn on the device, drive it
low to turn it off.
Supply Voltage Input Pin. XL4005 operates from a 5V to 32V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
Rev 2.1
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Free Datasheet http://www.datasheet4u.net/
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XL4005 converter
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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