XL4013PDF [XLSEMI]
深圳市杰立铭电子有限公司为一级代理商;
| 型号： | XL4013PDF |
| 厂家： | 
XLSEMI |
| 描述： | 深圳市杰立铭电子有限公司为一级代理商 电子 |
| 文件： | 总10页 (文件大小：332K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Features
General Description
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
The XL4013 is a 180 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 4A load with high
efficiency, low ripple and excellent line and
n Fixed 180KHz Switching Frequency
n 4A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency
load regulation. Requiring
a
minimum
number of external components, the regulator
is simple to use and include internal
frequency
compensation
and
a
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 TO-252 package
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.
Applications
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
Figure1. Package Type of XL4013
Rev 1.3
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1
Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Pin Configurations
Figure2. Pin Configuration of XL4013 (Top View)
Table 1 Pin Description
Pin Number
Pin Name 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 XL4013.
Feedback Pin (FB). Through an external resistor divider
network, FB senses the output voltage and regulates it. The
feedback threshold voltage is 1.25V.
1
GND
FB
2
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
3
4
SW
VC
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uf capacity to VIN.
Supply Voltage Input Pin. XL4013 operates from a 8V to 36V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
5
VIN
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Function Block
Figure3. Function Block Diagram of XL4013
Typical Application Circuit
Figure4. XL4013 Typical Application Circuit (VIN=8V~36V, VOUT=5V/4A)
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Ordering Information
Order Information
XL4013E1
Marking ID
XL4013E1
Package Type
TO252-5L
Packing Type Supplied As
2500 Units on Tape & Reel
XLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant.
Absolute Maximum Ratings（Note1）
Parameter
Symbol
Vin
Value
-0.3 to 40
Unit
V
Input Voltage
Feedback Pin Voltage
-0.3 to Vin
V
VFB
Output Switch Pin Voltage
Power Dissipation
-0.3 to Vin
V
VOutput
PD
Internally limited
mW
Thermal Resistance (TO252)
(Junction to Ambient, No Heatsink, Free Air)
Operating Junction Temperature
Storage Temperature
50
ºC/W
RJA
-40 to 125
-65 to 150
260
ºC
ºC
ºC
V
TJ
TSTG
TLEAD
Lead Temperature (Soldering, 10 sec)
ESD (HBM)
>2000
Note1: Stresses greater than those listed under Maximum Ratings may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
XL4013 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
System parameters test circuit figure4
Feedback
Voltage
Vin = 8V to 36V, Vout=5V
VFB
1.225 1.25 1.275
V
%
%
Iload=0.5A to 4A
Vin=12V ,Vout=5V
Iout=4A
Efficiency
Efficiency
-
-
86
94
-
-
ŋ
ŋ
Vin=24V ,Vout=12V
Iout=3A
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol
Vin
Test Condition
Min. Typ. Max.
Unit
V
Input operation voltage
Quiescent Supply Current
8
36
5
Iq
VFB =Vin
2.1
180
48
mA
Oscillator Frequency
Output Short Frequency
Switch Current Limit
Max. Duty Cycle
Fosc
Fosp
IL
144
216
KHz
KHz
A
VFB =0
7
DMAX
VFB=0V
100
%
VFB=0V, Vin=12V,
ISW=4A
Output Power PMOS
Rdson
60
80
mohm
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Typical System Application (VOUT=5V/4A)
Figure5. XL4013 System Parameters Test Circuit (VIN=8V~36V, VOUT=5V/4A)
Efficiency VS Output current
100
95
90
85
80
75
70
VIN=8V,VOUT=5V,IOUT=0.1A~4A
VIN=12V,VOUT=5V,IOUT=0.1A~4A
VIN=24V,VOUT=5V,IOUT=0.1A~4A
65
VIN=36V,VOUT=5V,IOUT=0.1A~4A
60
55
50
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Output current(A)
Figure6. XL4013 System Efficiency Curve
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Typical System Application (VOUT=12V/3A)
Figure7. XL4013 System Parameters Test Circuit (VIN=15V~36V, VOUT=12V/3A)
Efficiency VS Output current
100
95
90
85
80
75
VIN=15V,VOUT=12V,IOUT=0.1A~3A
VIN=24V,VOUT=12V,IOUT=0.1A~3A
VIN=36V,VOUT=12V,IOUT=0.1A~3A
70
65
60
55
50
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Output current(A)
Figure8. XL4013 System Efficiency Curve
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Typical System Application (TTL shutdown function)
Logic level signals shutdown function can be used in typical system application with external
components. When the TTL high voltage above 3.3V(referenced to ground, lower than VIN), the
converter will shutdown, input current less than 5mA; when the TTL Low voltage below
0.8V(referenced to ground), the converter will turn on.
L1 47uH/5A
VOUT=1.25*(1+R2/R1)
VIN
SW
5
3
D1
B540
R2
10K
XL4013
CC
105
C2
105
COUT
220uF/25V
R3
10K
VC
FB
4
2
VIN
1
GND
CIN C1
100uF/50V 105
D2
1N4148
R1
3.3K
OFF(High>3.3V)
ON(Low<0.8V)
TTL current capability larger than
TTL high voltage/(R1+R3)
Figure9. XL4013 Typical Application Circuit
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Schottky Diode Selection Table
Current Surface Through VR (The same as system maximum input voltage)
Mount Hole
20V
30V
40V
50V
60V
1N5817
1N5818
1N5819
1A
3A
√
1N5820
MBR320
SK32
1N5821
MBR330
SK33
1N5822
√
√
MBR340 MBR350
SK34 SK35
MBR360
SK36
√
√
30WQ03
31DQ03
SR303
30WQ04 30WQ05
31DQ04 31DQ05
√
√
SR302
SR304
SR305
SR306
1N5823
SR502
SB520
1N5824
SR503
1N5825
SR504
SB540
√
√
√
SR505
SB550
SR506
SB560
5A
8A
SB530
50WQ03
50WQ04 50WQ05
√
SR820
SR830
SR840 SR850
SR860
√
Rev 1.3
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Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Package Information
TO252-5L
Rev 1.3
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10
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