概要信息：

Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
 
Features 
 Wide 5V to 48V Input Voltage Range 
 Maximum Boost Output Up to 60V 
 Positive or Negative Output Voltage 
Programming with a Single Feedback Pin 
 Current Mode Control Provides Excellent 
Transient Response 
 1.25V reference adjustable version 
 Fixed 180KHz Switching Frequency 
 Maximum 6A Switching Current 
 SW PIN Built in Over Voltage Protection 
 Excellent line and load regulation 
 EN PIN TTL shutdown capability  
 Internal Optimize Power MOSFET 
 High efficiency up to 94% 
 Built in Frequency Compensation 
 Built in Soft-Start Function 
 Built in Thermal Shutdown Function 
 Built in Current Limit Function 
 Available in TO220-5L & TO263-5L 
package 
Applications 
 EPC / Notebook Car Adapter 
 Automotive and Industrial Boost / 
Buck-Boost / Inverting  Converters 
 Portable Electronic Equipment 
General Description 
The XL6012 regulator is a wide input range, 
current mode, DC/DC converter which is 
capable of generating either positive or 
negative output voltages. It can be configured 
as either a boost, flyback, SEPIC or inverting 
converter. The XL6012 built in high voltage 
N-channel power MOSFET and fixed 
frequency oscillator, current-mode 
architecture results in stable operation over a 
wide range of supply and output voltages. 
The XL6012 regulator is special design for 
portable electronic equipment applications.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure1. Package Type of XL6012 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Pin Configurations 
  
Figure2. Pin Configuration of XL6012 (Top View) 
 
Table 1 Pin Description 
 
Pin Number Pin Name Description 
1 GND Ground Pin.  
2 EN Enable Pin. Drive EN pin low to turn off the device, drive it 
high to turn it on. Floating is default high. 
3 SW Power Switch Output Pin (SW).  
4 VIN 
Supply Voltage Input Pin. XL6012 operates from a 5V to 48V 
DC voltage. Bypass Vin to GND with a suitably large 
capacitor to eliminate noise on the input. 
5 FB 
Feedback Pin (FB). Through an external resistor divider 
network, FB senses the output voltage and regulates it. The 
feedback threshold voltage is 1.25V. 
 
 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
 
Function Block 
 
Figure3. Function Block Diagram of XL6012 
 
Typical Application Circuit (Portable Notebook Car Adapter) 
 
Figure4. XL6012 Typical Application Circuit (Boost Car Adapter)  
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Ordering Information  
 
Part Number Marking ID 
Lead Free Lead Free 
Packing Type 
XL6012TE1 XL6012TE1 Tube 
Package 
Temperature 
Range 
XL6012SE1 XL6012SE1 Tape & Reel 
 
XLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant. 
 
Absolute Maximum Ratings（Note1） 
Parameter Symbol Value Unit 
Input Voltage Vin -0.3 to 48 V 
Feedback Pin Voltage VFB -0.3 to Vin V 
EN Pin Voltage VEN -0.3 to Vin V 
Output Switch Pin Voltage VOutput -0.3 to 60 V 
Power Dissipation PD Internally limited mW 
Thermal Resistance (TO220-5L/TO263-5L) 
(Junction to Ambient, No Heatsink, Free Air) RJA 30 ºC/W 
Operating Junction Temperature TJ -40 to 125 ºC 
Storage Temperature TSTG -65 to 150 ºC 
Lead Temperature (Soldering, 10 sec) TLEAD 260 ºC 
ESD (HBM)  2000 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. 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
 
 XL6012 Electrical Characteristics 
Ta = 25℃;unless otherwise specified. 
Symbol Parameter Test Condition Min. Typ. Max. Unit
System parameters test circuit figure4 
VFB 
Feedback 
Voltage 
Vin = 12V to 16V, Vout=18V 
Iload=0.1A to 1A 
1.225 1.25 1.275 V 
Efficiency ŋ Vin=12V ,Vout=18.5V 
Iout=3A 
- 94 - % 
 
Electrical Characteristics (DC Parameters) 
Vin = 12V, GND=0V, Vin & GND parallel connect a 220uf/50V capacitor; Iout=0.5A, Ta = 
25℃; the others floating unless otherwise specified. 
Parameters Symbol Test Condition Min. Typ. Max. Unit
Input operation voltage Vin  5  48 V 
Shutdown Supply Current ISTBY VEN=0V  70 100 uA 
Quiescent Supply Current Iq 
VEN =2V,  
VFB =Vin 
 2.5 5 mA
Oscillator Frequency Fosc  144 180 216 KHz
Switch Current Limit IL VFB =0  6  A 
EN Pin Threshold VEN 
High (Regulator ON) 
Low (Regulator OFF) 
 
1.4 
0.8 
 V 
IH VEN =2V (ON)  3 10 uA EN Pin Input Leakage 
Current IL VEN =0V (OFF)  3 10 uA 
Max. Duty Cycle  DMAX VFB=0V  90  % 
 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Schottky Diode Selection Table 
Current Surface 
Mount 
Through 
Hole 
VR (The same as system maximum input voltage) 
   20V 30V 40V 50V 60V 
1A  √ 1N5817 1N5818 1N5819   
 
 √ 1N5820 1N5821 1N5822   
 √ MBR320 MBR330 MBR340 MBR350 MBR360
√  SK32 SK33 SK34 SK35 SK36 
√   30WQ03 30WQ04 30WQ05  
 √  31DQ03 31DQ04 31DQ05  
3A 
 √ SR302 SR303 SR304 SR305 SR306 
        
 √ 1N5823 1N5824 1N5825   
 √ SR502 SR503 SR504 SR505 SR506 
 √ SB520 SB530 SB540 SB550 SB560 
5A 
√   50WQ03 50WQ04 50WQ05  
 
8A  √ SR820 SR830 SR840 SR850 SR860 
Typical System Application for EPC/Notebook Car Adapter – Boost (Output 18.5V/3A) 
 
Figure5. XL6012 Typical System Application (Boost Car Adapter) 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Typical System Application for Portable Notebook Car Adapter 
 – SEPIC Buck-Boost Topology (Input 10V~30V, Output 12V/4A) 
XL6012
CIN
470uf /50V
D1 SR860
L1A 47uh/6A
VIN
4
1 2
5
3
GND
VIN
SW
105
EN
ON
OFF
Buck-Boost Converter
Input 10V ~ 30V  
Output 12V / 4A     
VOUT=1.25*(1+R2/R1)
R1   1K
COUT
 220uf/50V
R2 8.6K
VOUT 12V
105
FB
L1B 47uh/6A
CDC 22uf/100V
 
Figure6. XL6012 Typical System Application (SEPIC Buck-Boost Converter) 
 
Typical System Application for Portable Notebook Car Adapter 
 – SEPIC Buck-Boost Topology (Input 12V~30V, Output 18.5V/3A) 
XL6012
CIN
470uf /50V
D1 SR860
L1A 47uh/6A
VIN
4
1 2
5
3
GND
VIN
SW
105
EN
ON
OFF
Buck-Boost Converter
Input 12V ~ 30V  
Output 18.5V / 3A     
VOUT=1.25*(1+R2/R1)
R1   1K
COUT
 220uf/50V
R2 13.8K
VOUT 18.5V
105
FB
L1B 47uh/6A
CDC 22uf/100V
 
Figure7. XL6012 Typical System Application (SEPIC Buck-Boost Converter) 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
 
 Typical System Application for Inverting Converter 
 – SEPIC Inverting Topology (Input 10V~30V, Output + -12V/2A) 
XL6012
CIN
100uf /50V
D1 SR860
L1A
VIN
4
1 2
5
3
GND
VIN
SW
105
EN
ON
OFF
SEPIC + - Converter
Input 10V ~ 30V  
Output +-12V / 2A     
VOUT=1.25*(1+R2/R1)
R1   1K
COUT
 220uf/50V
R2 8.6K
VOUT +12V
105
FB
L1B
CDC 22uf/100V
VOUT -12V
D1 SR860
COUT
 220uf/50V
CDC 22uf/100V
L1C
 
Figure8. XL6012 Typical System Application (SEPIC Inverting Converter) 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Package Information 
TO220-5L 
 
 
 
 
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                                         Datasheet           
 
180KHz 60V 6A Switching Current Boost DC/DC Converter                XL6012 
 
Package Information 
TO263-5L 
 
 
 
 
 
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