XL2006 [ETC]
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop; 3A 32V为160kHz降压型DC / DC转换器CV / CC循环
| 型号： | XL2006 |
| 厂家： | 
ETC |
| 描述： | 3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop |
| 文件： | 总8页 (文件大小：204K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
联系电话13428706223 QQ：1157008115 曹生
Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Features
General Description
n Wide 8V to 32V Input Voltage Range
n Output Adjustable from 0.8V to 26V
n Minimum Drop Out 0.3V
The XL2006 is a 160 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3A load with high
efficiency, low ripple and excellent line and
n Fixed 160KHz Switching Frequency
n Maximum 3A Output Current Capability
n Internal Optimize Power MOSFET
n Excellent line and load regulation
n High efficiency up to 92%
load regulation. Requiring
a
minimum
number of external components, the regulator
is simple to use and include internal
frequency
compensation
and
a
n TTL shutdown capability
fixed-frequency oscillator.
n EN pin with hysteresis function
n With output constant current loop
n Built in Constant Voltage (CV) Loop
n Built in Constant Current (CC) Loop
n Built in thermal shutdown function
n Built in output short protection
n SOP8-EP package
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. An internal compensation
block is built in to minimize external
component count.
Applications
n Car Charger
n Battery Charger
Figure1. Package Type of XL2006
Rev 1.2
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1
Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Pin Configurations
NC
OCSET
1
8
The Exposed PAD is SW
2
3
7
6
VIN
SW
EN
NC
XL2006
4
5
GND
FB
Figure2. Pin Configuration of XL2006 (Top View)
Table 1 Pin Description
Pin Number Pin Name Description
1,6
NC
No Connected.
Supply Voltage Input Pin. XL2006 operates from a 8V to 32V
DC voltage. Bypass Vin to GND with a suitably large capacitor
to eliminate noise on the input.
2
VIN
Power Switch Output Pin (SW). Output is the switch node that
supplies power to the output.
(Note: Connected the back exposed PAD to SW.)
Ground Pin.
Feedback Pin (FB). Through an external resistor divider
network, Feedback senses the output voltage and regulates it.
The feedback threshold voltage is 0.8V.
3
4
5
SW
GND
FB
Enable Pin. Drive EN pin low to turn off the device, drive it
high to turn it on.
Output Constant Current Set Pin;
7
8
EN
OCSET
Rev 1.2
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2
Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Function Block
Figure3. Function Block Diagram of XL2006
Ordering Information
Part Number
Lead Free
Marking ID
Lead Free
Packing Type
Temperature
Package
Range
XL2006E1
XL2006TRE1
XL2006E1
XL2006E1
Tube
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 34
Unit
V
Input Voltage
FB Pin Voltage
EN Pin Voltage
SW Pin Voltage
-0.3 to Vin
V
VFB
-0.3 to Vin
-0.3 to Vin
V
VEN
VSW
PD
V
Power Dissipation
Internally limited
mW
Thermal Resistance
60
ºC/W
RJA
(Junction to Ambient, No Heatsink, Free Air)
Operating Junction Temperature
Storage Temperature
-40 to 125
-65 to 150
260
ºC
ºC
ºC
V
TJ
TSTG
TLEAD
Lead Temperature (Soldering, 10 sec)
ESD (HBM)
> 2000
Rev 1.2
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3
Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
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.
XL2006 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 30V, Vout=5V
VFB
780
-
800
89
820
-
mV
%
Iload=0.2A
Vin=12V ,Vout=5V
Iout=2.1A
Efficiency
ŋ
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/35V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified, system parameters reference figure4.
Parameters
Symbol
Vin
Test Condition
Min. Typ. Max.
Unit
V
Input operation voltage
Shutdown Supply Current
8
32
ISTBY
VEN=0V
60
2.5
160
200
uA
VEN =2V,
VFB =Vin
Quiescent Supply Current
Oscillator Frequency
Iq
5
mA
Fosc
128
192
KHz
High (Regulator ON)
Low (Regulator OFF)
1.7
1.1
EN Pin Threshold
VEN
V
VFB=0V, Vin=12V,
ISW=2A
Output Power PMOS
Output Voltage Set
Rdson
VFB
60
80
mohm
V
Vout=(1+R2/R1)*VFB 0.78
0.8
0.82
Rev 1.2
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Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Typical Application Circuit (Car Charger)
Figure4. XL2006 Typical Application Circuit (Car Charger)
Figure5. Output Voltage VS Output Current Curve
Rev 1.2
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5
Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Figure6. Output Current VS Efficiency Curve
Figure7. RCS VS Output Current Select Curve
Rev 1.2
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Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Schottky Diode Selection Table
Current Surface Mount Through Hole VR (The same as system maximum input voltage)
20V
30V
40V
1N5817
1N5818
1N5819
√
1A
3A
SS12
SS13
SS14
√
1N5820
MBR320
SK32
1N5821
MBR330
SK33
1N5822
MBR340
SK34
√
√
√
√
30WQ03
31DQ03
SR303
30WQ04
31DQ04
SR304
√
√
SR302
Rev 1.2
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Datasheet
XL2006
3A 160KHz 32V Buck DC/DC Converter With CV/CC Loop
Package Information
Package Information (SOP8-EP)
Rev 1.2
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8
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