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AP1506 Datasheet(PDF) 4 Page - Diodes Incorporated

Part No. AP1506
Description  150KHz, 3A PWM BUCK DC/DC CONVERTER
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Maker  DIODES [Diodes Incorporated]
Homepage  http://www.diodes.com
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AP1506 Datasheet(HTML) 4 Page - Diodes Incorporated

 
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AP1506
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1506 Rev. 2
4 of 13
NOVEMBER 2006
www.diodes.com
© Diodes Incorporated
Electrical Characteristics
(All Output Voltage Versions)
Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 18V 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
-50
IFB
Feedback Bias Current
VFB = 1.3V
(Adjustable version only)
-
-10
-100
nA
127
150
173
FOSC
Oscillator Frequency
110
-
173
KHz
FSCP
Oscillator Frequency of
Short Circuit Protect
When current limit occurred
and VFB < 0.5V, Ta = 25
oC
10
30
50
KHz
1.6
VSAT
Saturation Voltage
IOUT = 3A
No outside circuit
VFB = 0V force driver on
-
1.4
1.7
V
Max. Duty Cycle (ON)
VFB = 0V force driver on
-
100
-
DC
Min. Duty Cycle (OFF)
VFB = 12V force driver off
-
0
-
%
5.5
ICL
Current Limit
Peak current
No outside circuit
VFB = 0 force driver on
3.6
4.5
6.5
A
Output = 0V
No outside circuit
VFB = 12 force driver off
-
-
-200
UA
IL
Output = -1V
Output
Leakage
Current
VIN = 22V
-
-5
-
MA
IQ
Quiescent Current
VFB = 12 force driver off
-
5
10
MA
150
ISTBY
Standby Quiescent
Current
ON
/OFF pin = 5V
VIN = 22V
-
70
200
UA
VIL
Low (regulator ON)
-
0.6
VIH
ON
/OFF Pin Logic Input
Threshold Voltage
High (regulator OFF)
2.0
1.3
-
V
IH
ON
/OFF Pin Logic
Input Current
VLOGIC = 2.5V (OFF)
-
-
-0.01
IL
ON
/OFF Pin Input
Current
VLOGIC = 0.5V (ON)
-
-0.1
-1
UA
TO220-5L
-
2.5
-
θJC
Thermal Resistance
Junction to Case
TO263-5L
-
3.5
-
oC/W
TO220-5L
-
28
-
θJA
Thermal Resistance
Junction to Ambient
TO263-5L
with a copper
area of
approximately
3in
2
-
23
-
oC/W


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