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PDF XL4015 Data sheet ( Hoja de datos )
| Número de pieza | XL4015 | |
| Descripción | 5A 180KHz 36V Buck DC to DC Converter | |
| Fabricantes | Xlsemi | |
| Logotipo |  |
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 1. Buck DC to DC Converter  Hay una vista previa y un enlace de descarga de XL4015 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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5A 180KHz 36V Buck DC to DC Converter
Features
n Wide 8V to 36V Input Voltage Range
n Output Adjustable from 1.25V to 32V
n Maximum Duty Cycle 100%
n Minimum Drop Out 0.3V
n Fixed 180KHz Switching Frequency
n 5A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency up to 96%
n Excellent line and load regulation
n Built in thermal shutdown function
n Built in current limit function
n Built in output short protection function
n Available in TO263-5L package
Applications
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
Datasheet
XL4015
General Description
The XL4015 is a 180 KHz 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 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
block is built in to minimize external
component count.
Rev 1.3
Figure1. Package Type of XL4015
www.xlsemi.com
1
Free Datasheet http://www.nDatasheet.com
1 page  
5A 180KHz 36V Buck DC to DC Converter
Datasheet
XL4015
XL4015 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol Parameter
Test Condition
System parameters test circuit figure4
VFB
Efficiency
Feedback
Voltage
ŋ
Efficiency
ŋ
Vin = 8V to 40V, Vout=5V
Iload=0.5A to 5A
Vin=12V ,Vout=5V
Iout=5A
Vin=24V ,Vout=12V
Iout=4A
Min. Typ. Max. Unit
1.225 1.25 1.275 V
- 87 - %
- 93 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 220uf/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol Test Condition Min. Typ. Max. Unit
Input operation voltage
Vin
8 36 V
Quiescent Supply Current
Iq
VFB =Vin
2.1 5
mA
Oscillator Frequency
Fosc
144 180 216 KHz
Output Short Frequency
Fosp
48 KHz
Switch Current Limit
IL VFB =0
7A
Max. Duty Cycle
Output Power PMOS
DMAX
Rdson
VFB=0V
VFB=0V, Vin=12V,
ISW=5A
100 %
60 80 mohm
Rev 1.3
www.xlsemi.com
5
Free Datasheet http://www.nDatasheet.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet XL4015.PDF ] | |
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