AP1501A Ver la hoja de datos (PDF) - Diodes Incorporated.
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AP1501A Datasheet PDF : 14 Pages
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AP1501A
150KHz, 5A PWM BUCK DC/DC CONVERTER
Electrical Characteristics ( All Output Voltage Versions )
Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 24V for the 12V version. ILOAD = 0.5A
Specifications with boldface type are for full operating temperature range, the other type are for TJ = 25ºC.
Symbol
Parameter
Conditions
Min Typ. Max
IFB
Feedback Bias Current
VFB = 1.3V
(Adjustable version only)
40
60
100
FOSC Oscillator Frequency
127
150
173
110
173
VSAT Saturation Voltage
IOUT = 5A
no outside circuit
VFB = 0V force driver on
1.6
1.5
1.7
DC
Max. Duty Cycle(ON)
Min. Duty Cycle(OFF)
VFB = 0V force driver on
VFB = 12V force driver off
100
0
peak current
6.5
ICL Current Limit
no outside circuit
VFB = 0 force driver on
5.5
6.0
7.5
IL
Output = 0V
Output
Leakage
no outside circuit
VFB = 12 force driver off (Note 3)
Output = -1V Current VIN = 40V
200
2
60
IQ Quiescent Current
VFB = 12 force driver off
5
10
ISTBY
Standby Quiescent
Current
ON/OFF pin = 5V
VIN = 40V
150
250
300
VIL ON/OFF Pin Logic Input Low (regulator ON)
VIH Threshold Voltage
High (regulator OFF)
0.6
1.3
2.0
IH
ON/OFF Pin Logic
Input Current
IL
ON/OFF Pin Input
Current
VLOGIC = 2.5V (OFF)
VLOGIC = 0.5V (ON)
15
25
0.02
5
TO263-5L (Note 4)
37
θJA
Thermal Resistance
Junction-to-Ambient
TO220-5L(R) (Note 4)
31
Unit
nA
Khz
V
%
A
uA
mA
mA
uA
V
uA
oC/W
θJC
Thermal Resistance
Junction-to-Case
TO263-5L (Note 4)
TO220-5L(R) (Note 4)
6
oC/W
5
Notes:
3. Feedback pin removed from output and connected to 0V to force the output transistor switch ON. Feedback pin removed from output
and connected to 12V for the 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force the output transistor switch OFF.
4. Test condition: Device mounted with copper area of approximately 3in2, 1oz, no air flow.
AP1501A Rev. 10
DS31191
6 of 14
www.diodes.com
SEPTEMBER 2009
© Diodes Incorporated
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