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ACE722A Datasheet(PDF) 4 Page - ACE Technology Co., LTD.

Part # ACE722A
Description  2A PWM BUCK DC-DC Converter
PDF  9 Pages
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Manufacturer  ACE [ACE Technology Co., LTD.]
Direct Link  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE722A Datasheet(HTML) 4 Page - ACE Technology Co., LTD.

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ACE722A
Technology
2A PWM BUCK DC-DC Converter
VER 1.2
4
Electrical Characteristics
(Vcc=12V, VOUT=5V, TA=25℃, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Input Voltage
VIN
4.75
25
V
Shutdown Quiescent Current
ISHDN
VEN=0.4V
44
60
μA
Quiescent Current
IQ
VEN=2V, VFB=1.3V
1.3
2
mA
Feedback Voltage
VFB
VIN=5V to 25V
0.784
0.8
0.816
V
Feedback Bias Current
IFB
VFB=1.3V
-0.1
-0.5
μA
Switch Current Limit
ILIM
2.5
3.4
A
Oscillator Frequency
fosc
336
420
504
kHz
Frequency of Current Limit or Short
Circuit Protection
fosc1
VFB<0.52V
40
kHz
Error Amplifier Voltage Gain
GV
1000
V/V
Error Amplifier Transconductance
GS
700
μA/V
VH
1.5
V
EN Pin Threshold
VL
0.7
V
EN Pin Input Leakage Current
IEN
VEN=2.5V
-5
-10
μA
Internal PMOS ON Resistance
RDSON
VIN=12V
VFB=0.65V
VEN=12V,IOUT=2A
130
150
mΩ
Maximum Duty Cycle
DMAX
VFB=0.65V,
ISW=0.1A
100
%
Thermal Shutdown
TOTSD
155
℃
Thermal Shutdown Hysteresis
THYS
20
℃
Typical Performance Characteristics
VCC=12V, VOUT=5V, TA=25℃, unless otherwise specified
Output Current (A)
Temperature (℃)
Figure 1. Efficiency vs. Output Current
Figure 2. Operation Frequency vs. Temperature



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