AP1509-XXS データシートの表示（PDF） - Diodes Incorporated.
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AP1509-XXS Datasheet PDF : 12 Pages
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AP1509
150KHz, 2A PWM BUCK DC/DC CONVERTER
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
IFB Feedback Bias Current
FOSC
FSCP
Oscillator Frequency
Oscillator Frequency of
Short Circuit Protect
VSAT Saturation Voltage
DC
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
ICL Current Limit
IL
IQ
ISTBY
VIL
VIH
IH
IL
ΘJC
ΘJA
Output = 0
Output
Leakage
Output = -1 Current
Quiescent Current
Standby Quiescent
Current
ON/OFF Pin Logic Input
Threshold Voltage
ON/OFF Pin Logic Input
Current
ON/OFF Pin Input
Current
Thermal Resistance
Thermal Resistance
with a copper area of
approximately 3 in2
Conditions
VFB = 1.3V
(Adjustable version only)
When current limit occurred
and VFB < 0.5V, Ta = 25 oC
IOUT = 2A
No outside circuit
VFB = 0V force driver on
VFB = 0V force driver on
VFB = 12V force driver off
Peak current
No outside circuit
VFB = 0V force driver on
No outside circuit
VFB = 12V force driver off
VIN = 22V
VFB = 12V force driver off
ON/OFF pin = 5V
VIN = 22V
Low (regulator ON)
High (regulator OFF)
VLOGIC = 2.5V (OFF)
VLOGIC = 0.5V (ON)
SOP-8L
Junction to
case
SOP-8L
Junction to
ambient
Min.
127
110
10
3
-
2.0
Typ.
-10
150
30
1.25
100
0
-5
5
70
1.3
-0.1
15
70
Max.
-50
-100
173
173
50
1.4
1.5
-200
10
150
200
0.6
-
-0.01
-1
Unit
nA
KHz
KHz
V
%
A
uA
mA
mA
uA
V
uA
oC/W
oC/W
AP1509 Rev. 1
4 of 12
www.diodes.com
DECEMBER 2006
© Diodes Incorporated
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