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AP1501 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # AP1501
Description  150KHz, 3A PWM BUCK DC/DC CONVERTER
PDF  12 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1501 Datasheet(HTML) 4 Page - Diodes Incorporated

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AP1501
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1501 Rev. 11
4 of 12
JANUARY 2009
www.diodes.com
© Diodes Incorporated
Recommended Operating Conditions
Symbol
Parameter
Rating
Units
VOP
Operating Voltage
4.5 to 40
V
TA
Operating Ambient Temperature
-20 to 85
oC
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
Unit
IFB
Feedback Bias Current
VFB = 1.3V
(Adjustable version only)
40
60
nA
100
FOSC
Oscillator Frequency
127
150
173
KHZ
110
173
VSAT
Saturation Voltage
IOUT = 3A
No outside circuit
VFB = 0V force driver on
1.3
1.4
V
1.5
DC
Max. Duty Cycle(ON)
VFB = 0V force driver on
100
%
Min. Duty cycle(OFF)
VFB = 12V force driver off
0
ICL
Current Limit
Peak current
no outside circuit
VFB = 0V force driver on
3.6
4.0
5.5
A
6.5
IL
Output = 0
Output
Leakage
Current
No outside circuit
VFB = 12V force driver off (Note 3)
200
uA
Output = -1
VIN = 40V
2
60
mA
IQ
Quiescent Current
VFB = 12V force driver off
5
10
mA
ISTBY
Standby Quiescent
Current
ON/OFF pin = 5V
VIN = 40V
150
250
uA
350
VIL
ON/OFF pin Logic Input
Threshold Voltage
Low (regulator ON)
1.3
0.6
V
VIH
High (regulator OFF)
2.0
IH
ON/OFF Pin Logic
Input Current
VLOGIC = 2.5V (OFF)
15
25
uA
IL
ON/OFF Pin Input
Current
VLOGIC = 0.5V (ON)
0.02
5
θ
JA
Thermal Resistance
unction to Ambient
TO263-5L (Note 4)
37
oC/W
TO220-5L(R) (Note 4)
31
θ
JC
Thermal Resistance
Junction to Case
TO263-5L (Note 4)
6
oC/W
TO220-5L(R) (Note 4)
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 3 in
2,1oz, no air flow.



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