AP1501 Ver la hoja de datos (PDF) - Diodes Incorporated.
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AP1501 Datasheet PDF : 12 Pages
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AP1501
150KHz, 3A PWM BUCK DC/DC CONVERTER
Recommended Operating Conditions
Symbol
VOP
TA
Parameter
Operating Voltage
Operating Ambient Temperature
Rating
4.5 to 40
-20 to 85
Units
V
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
IFB
Feedback Bias Current
VFB = 1.3V
(Adjustable version only)
FOSC Oscillator Frequency
40
60
100
127
150
173
110
173
IOUT = 3A
1.4
VSAT Saturation Voltage
No outside circuit
VFB = 0V force driver on
1.3
1.5
DC
Max. Duty Cycle(ON) VFB = 0V force driver on
Min. Duty cycle(OFF) VFB = 12V force driver off
100
0
Peak current
5.5
ICL Current Limit
no outside circuit
VFB = 0V force driver on
3.6
4.0
6.5
IL
Output = 0
Output
Leakage
No outside circuit
VFB = 12V force driver off (Note 3)
200
Output = -1 Current VIN = 40V
2
60
IQ Quiescent Current
VFB = 12V force driver off
5
10
ISTBY
Standby Quiescent
Current
ON/OFF pin = 5V
VIN = 40V
150
250
350
VIL ON/OFF pin Logic Input Low (regulator ON)
VIH Threshold Voltage
High (regulator OFF)
0.6
2.0
1.3
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
θJA
Thermal Resistance
unction to Ambient
TO263-5L (Note 4)
TO220-5L(R) (Note 4)
37
31
Unit
nA
KHZ
V
%
A
uA
mA
mA
uA
V
uA
oC/W
TO263-5L (Note 4)
θJC
Thermal Resistance
Junction to Case
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 3 in2,1oz, no air flow.
AP1501 Rev. 11
4 of 12
www.diodes.com
JANUARY 2009
© Diodes Incorporated
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