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XL6019
220KHz 60V 5A Switching Current Boost / Buck-Boost / Inverting DC/DC Converter
Features
n Wide 5V to 40V Input Voltage Range
n Positive or Negative Output Voltage
Programming with a Single Feedback Pin
n Current Mode Control Provides Excellent
Transient Response
n 1.25V reference adjustable version
n Fixed 220KHz Switching Frequency
n Maximum 5A Switching Current
n SW PIN Built in Over Voltage Protection
n Excellent line and load regulation
n EN PIN TTL shutdown capability
n Internal Optimize Power MOSFET
n High efficiency up to 94%
n Built in Frequency Compensation
n Built in Soft-Start Function
n Built in Thermal Shutdown Function
n Built in Current Limit Function
n Available in TO263-5L package
General Description
The XL6019 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 XL6019 built in 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 XL6019 regulator is special design for
portable electronic equipment applications.
Applications
n EPC / Notebook Car Adapter
n Automotive and Industrial Boost
Buck-Boost / Inverting Converters
n Portable Electronic Equipment
/
Rev 1.0
Figure1. Package Type of XL6019
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1
XL6019
220KHz 60V 5A Switching Current Boost / Buck-Boost / Inverting DC/DC Converter
XL6019 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol Parameter
Test Condition
System parameters test circuit figure4
VFB
Feedback
Voltage
Vin = 12V to20V, Vout=24V
Iload=0.1A to 1A
ŋ
Efficiency
Vin=12V ,Vout=24V
Iout=1A
Min. Typ. Max. Unit
1.231 1.25 1.269 V
- 93 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/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 40 V
Shutdown Supply Current
Quiescent Supply Current
Oscillator Frequency
ISTBY
Iq
Fosc
VEN=0V
VEN =2V,
VFB =Vin
70 100 uA
2.5 5 mA
176 220 264 KHz
SW OVP
Switch Current Limit
VSW
IL
VFB =0V
VFB =0V
60 V
5A
Output Power NMOS
Rdson
Vin=12V,
ISW=4A
110 120 mohm
EN Pin Threshold
EN Pin Input Leakage
Current
Max. Duty Cycle
VEN
IH
IL
DMAX
High (Regulator ON)
Low (Regulator OFF)
VEN =2V (ON)
VEN =0V (OFF)
VFB=0V
1.4
0.8
3 10
3 10
90
V
V
uA
uA
%
Rev 1.0
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XL6019
220KHz 60V 5A Switching Current Boost / Buck-Boost / Inverting DC/DC Converter
Typical System Application(VIN=10~30V,VOUT=12V)
Figure17. XL6019 Typical System Application (VIN=10~30V,VOUT=12V)
Typical System Application(VIN=10~30V,VOUT=±12V)
L1C
D2 B560C
VOUT -12V
C4
220uF/35V
C3
22uF/63V
VOUT +12V
D1 B560C
L1A L1B
SW CDC 22uF/63V
3
VIN 4 XL6019 5 FB
12
GND EN
VIN CIN
C1 ON
220uF/50V 105 OFF
R2
24K
1%
C2
R1 105
2.74K
1%
COUT
220uF/35V
SEPIC + - Converter
Input 10V ~ 30V
Output +-12V / 1A
VOUT=1.25*(1+R2/R1)
Figure18. XL6019 Typical System Application (VIN=10~30V,VOUT=±12V)
Rev 1.0
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