Datasheet
5V/3.2A 150KHz 40V Buck DC to DC Converter For USB Interface
Features
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Wide 8V to 40V input voltage range.
Fixed 5V output voltage.
Maximum 3.2A output current.
Fixed 150KHz switching frequency.
Internal optimize power MOSFET.
High efficiency up to 92%.
Built in output short shutdown function.
Excellent line and load regulation.
Built in thermal shutdown function.
Built in current limit function.
Available in TO252-5L package.
XL2013
General Description
The XL2013 is a 150KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3.2A 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 XL2013 built in output short protection
function. When short protection function
happens, the chip will be shutdown. An
internal compensation block is built in to
minimize external component count.
Applications
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Car Charger
Battery Charger
USB Power Supply
Figure1. Package Type of XL2013
Rev 1.0
1
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Datasheet
5V/3.2A 150KHz 40V Buck DC to DC Converter For USB Interface
Pin Configurations
XL2013
Figure2. Pin Configuration of XL2013 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5
Pin Name
GND
FB
SW
VC
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 XL2013.
Feedback Pin (FB). The feedback threshold voltage is 5V.
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uf capacity to VIN.
Supply Voltage Input Pin. XL2013 operates from 8V to 40V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
Rev 1.0
2
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Datasheet
5V/3.2A 150KHz 40V Buck DC to DC Converter For USB Interface
Function Block
XL2013
Figure3. Function Block Diagram of XL2013
Typical Application Circuit
Figure4. XL2013 Typical Application Circuit (VIN=8V~40V, VOUT=5V/3.2A)
Rev 1.0
3
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Datasheet
5V/3.2A 150KHz 40V Buck DC to DC Converter For USB Interface
Ordering Information
Temperature
Range
Part Number
Lead Free
XL2013E1
Marking ID
Lead Free
XL2013E1
Packing Type
2500 Units on Tape & Reel
XL2013
Package
XLSEMI Pb-free products, as designated with
“E1”
suffix in the par number, are RoHS compliant.
Absolute Maximum Ratings（Note1）
Parameter
Input Voltage
Feedback Pin Voltage
Output Switch Pin Voltage
Power Dissipation
Thermal Resistance (TO252-5L)
(Junction to Ambient, No Heatsink, Free Air)
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
ESD (HBM)
Symbol
Vin
V
FB
V
Output
P
D
R
JA
T
J
T
STG
T
LEAD
Value
-0.3 to 45
-0.3 to Vin
-0.3 to Vin
Internally limited
50
-40 to 125
-65 to 150
260
>2000
Unit
V
V
V
mW
ºC/W
ºC
ºC
ºC
V
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 1.0
4
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Datasheet
5V/3.2A 150KHz 40V Buck DC to DC Converter For USB Interface
XL2013 Electrical Characteristics
T
a
= 25℃;unless otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
XL2013
System parameters test circuit figure4
VFB
Efficiency
Feedback
Voltage
Vin = 8V to 40V, Vout=5V
Iload=0.5A to 3.2A
Vin=12V ,Vout=5V
Iout=3.2A
4.9
-
5
87
5.1
-
V
%
ŋ
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uF/50V capacitor; Iout=500mA, T
a
=
25℃; the others floating unless otherwise specified.
Parameters
Input operation voltage
Quiescent Supply Current
Output Short Supply Current
Oscillator Frequency
Switch Current Limit
Output Power PMOS
Symbol
Vin
I
q
Iosp
Fosc
I
L
Rdson
V
FB
=0
V
FB
=0V, Vin=12V,
I
SW
=3.2A
127
150
3.5
70
90
V
FB
=Vin
Test Condition
Min.
8
4.7
Typ.
Max.
40
10
5
173
Unit
V
mA
mA
KHz
A
mohm
Rev 1.0
5
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