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AP1507 Datasheet(PDF) 3 Page - Diodes Incorporated

Part No. AP1507
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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AP1507 Datasheet(HTML) 3 Page - Diodes Incorporated

 
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AP1507
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1507 Rev. 1
3 of 10
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
VCC
Supply Voltage
+24
V
VSD
ON
/OFF Pin Input Voltage
-0.3 to +18
V
VFB
Feedback Pin Voltage
-0.3 to +18
V
VOUT
Output Voltage to Ground
-1
V
PD
Power Dissipation
Internally Limited
W
TST
Storage Temperature
-65 to +150
oC
TOP
Operating Temperature
-40 to +125
oC
VOP
Operating Voltage
+4.5 to +22
V
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 = 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
ΘJC
Thermal Resistance
TO252-5L
Junction to
Case
10
oC/W
ΘJA
Thermal Resistance
with copper area of
approximately 2cm ×2cm
TO252-5L
Junction to
Ambient
50
oC/W


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