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AP3502F Datasheet(PDF) 5 Page - Diodes Incorporated

Part # AP3502F
Description  SYNCHRONOUS DC-DC BUCK CONVERTER
PDF  11 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP3502F Datasheet(HTML) 5 Page - Diodes Incorporated

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AP3502F
Document number: DS41525 Rev. 2 - 2
5 of 11
www.diodes.com
October 2018
© Diodes Incorporated
AP3502F
Electrical Characteristics (T
A=+25º
C, VIN=VEN=12V, VOUT=3.3V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
SUPPLY VOLTAGE (IN PIN)
VIN
Input Voltage
_
4.5
_
18
V
IQ
Quiescent Current
VFB=1V,VEN=3V
_
1.2
1.4
mA
ISHDN
Shutdown Supply Current
VEN=0V
_
0.1
10
μA
UNDER VOLTAGE LOCKOUT
VUVLO
Input UVLO Threshold
VIN Rising
3.65
4.00
4.25
V
VHYS
Input UVLO Hysteresis
_
_
200
_
mV
ENABLE (EN PIN)
_
EN Shutdown Threshold Voltage
_
1.1
1.5
2
V
_
EN Shutdown Threshold Voltage
Hysteresis (Note 2)
_
_
350
_
mV
_
EN Lockout Threshold Voltage
_
2.2
2.5
2.7
V
_
EN Lockout Hysteresis
_
_
210
_
mV
VOLTAGE REFERENCE (FB PIN)
VFB
Feedback Voltage
_
0.907
0.925
0.943
V
VFBOV
Feedback Over Voltage Threshold
_
_
1.1
_
V
IFB
Feedback Bias Current
VFB=1V
-0.1
_
0.1
μA
MOSFET
RDSONH
High-side Switch On-resistance(Note 3)
ISW=0.2A/0.7A
_
100
_
mΩ
RDSONL
Low-side Switch On-resistance(Note 3)
ISW=-0.2A/-0.7A
_
100
_
mΩ
CURRENT LIMIT
ILEAKH
High-side Switch Leakage Current
VIN=18V,VEN=VSW=0V
_
0.1
10
μA
ILIMH
High-side Switch Current Limit
_
2.7
3.5
_
A
ILIML
Low-side Switch Current Limit
From Drain to Source
_
1.4
_
A
SWITCHING REGULATOR
fOSC1
Oscillator Frequency
_
280
340
400
kHz
fOSC2
Short Circuit Oscillator Frequency
_
_
90
_
kHz
DMAX
Max. Duty Cycle
VFB=0.85V
_
90
_
%
DMIN
Min. Duty Cycle
VFB=1V
_
_
0
%



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