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AP1507 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # AP1507
Description  150KHz, 3A PWM BUCK DC/DC CONVERTER
PDF  11 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1507 Datasheet(HTML) 4 Page - Diodes Incorporated

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AP1507
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1507 Rev.
2
4 of 11
FEBRUARY 2008
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. ILO
= 0.5A
AD
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 = 0V Force Driver On
3.6
4.5
6.5
A
Output = 0V
No Outside Circuit
VFB =12V Force Driver Off
-200
uA
ILEAK
Output = -1V
Output
leakage
current
VIN = 22V
-5
mA
IQ
Quiescent Current
VFB = 12V 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
θ
JA
Thermal Resistance
TO252-5L
Junction to
Case
10
oC/W
θ
JC
Thermal Resistance
with copper area of
approximately 2cm ×2cm
TO252-5L
Junction to
Ambient
50
oC/W



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