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XL1509 데이터시트 PDF




XLSEMI에서 제조한 전자 부품 XL1509은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 XL1509 기능
기능 2A 150KHz 40V Buck DC to DC Converter
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XL1509 데이터시트, 핀배열, 회로
2A 150KHz 40V Buck DC to DC Converter
Datasheet
XL1509
Features
n Wide 4.5V to 40V Input Voltage Range
n 3.3V,5V,12V, and adjustable versions
n Output Adjustable from 1.23V to 37V
n Maximum Duty Cycle 100%
n Minimum Drop Out 1.5V
n Fixed 150KHz Switching Frequency
n 2A Constant Output Current Capability
n Internal Optimize Power Transistor
n High efficiency
n Excellent line and load regulation
n TTL shutdown capability
n ON/OFF pin with hysteresis function
n Built in thermal shutdown function
n Built in current limit function
n Built in second current limit function
n Available in SOIC8 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 XL1509 is a 150 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 2A 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 second current limit
function happens, the operation frequency
will be reduced from 150KHz to 50KHz. An
internal compensation block is built in to
minimize external component count.
Rev 2.0
Figure1. Package Type of XL1509
1
www.xlsemi.com
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XL1509 pdf, 반도체, 판매, 대치품
2A 150KHz 40V Buck DC to DC Converter
Datasheet
XL1509
Ordering Information
XL1509
Circuit Type
E1
E1: Lead Free
Packing
Blank: Tube
TR: Type and Reel
Version
ADJ: Adjust
3.3: 3.3V
5.0: 5V
12: 12V
Package
SOIC8
Temperature
Range
-40oC ~ 85oC
Part Number
Lead Free
XL1509-ADJE1
XL1509-3.3E1
XL1509-5.0E1
XL1509-12E1
XL1509-ADJTRE1
XL1509-3.3TRE1
XL1509-5.0TRE1
XL1509-12TRE1
Marking ID
Lead Free
XL1509-ADJE1
XL1509-3.3E1
XL1509-5.0E1
XL1509-12E1
XL1509-ADJE1
XL1509-3.3E1
XL1509-5.0E1
XL1509-12E1
Packing Type
Tube
Tube
Tube
Tube
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
XLSEMI Pb-free products, as designated with E1suffix in the par number, are RoHS compliant.
Rev 2.0
www.xlsemi.com
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XL1509 전자부품, 판매, 대치품
2A 150KHz 40V Buck DC to DC Converter
Datasheet
XL1509
Electrical Characteristics (DC Parameters)
Vin = 12V for the 3.3V,5V,and Adjustable versions and Vin=24V for the 12V version, 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
4.5 40 V
Shutdown Supply Current
Quiescent Supply Current
Oscillator Frequency
ISTBY
Iq
Fosc
VON/OFF=5V
VON/OFF =0V,
VFB =Vin
80 200 uA
2 10 mA
127 150 173 Khz
Switch Current Limit
IL
VFB =0
4A
ON/OFF Pin Threshold
High (Regulator OFF)
VON/OFF Low (Regulator ON)
1.4
0.8
V
ON/OFF Pin Input
Leakage Current
IH
IL
Output Saturation Voltage VCE
Max. Duty Cycle
DMAX
VON/OFF =2.5V (OFF)
VON/OFF =0.5V (ON)
VFB=0V
Iout=2A
VFB=0V
5 15 uA
0.2 5 uA
1.2 1.4 V
100 %
Rev 2.0
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