AP1507(2007) 데이터 시트보기 (PDF) - Diodes Incorporated.
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AP1507 Datasheet PDF : 10 Pages
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AP1507
150KHz, 3A PWM BUCK DC/DC CONVERTER
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.
IFB Feedback Bias Current
VFB = 1.3V
( Adjustable Version Only )
-10
-50
-100
FOSC Oscillator Frequency
127
150
173
110
173
FSCP
Oscillator Frequency of
Short Circuit Protect
When current limit Occurred
and VFB < 0.5V, Ta = 25 oC
10
30
50
IOUT = 3A
1.6
VSAT Saturation Voltage
No Outside Circuit
VFB = 0V Force Driver On
1.4
1.7
DC
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
VFB = 0V Force Driver On
VFB = 12V Force Driver Off
100
0
Peak Current
5.5
ICL Current Limit
No Outside Circuit
3.6
4.5
VFB = 0V Force Driver On
6.5
ILEAK
IQ
Output = 0V
Output
leakage
Output = -1V current
Quiescent Current
No Outside Circuit
VFB =12V Force Driver Off
VIN = 22V
VFB = 12V Force Driver Off
-200
-5
5
10
ISTBY
Standby Quiescent
Current
ON /OFF Pin = 5V
VIN = 22V
150
70
200
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 VLOGIC = 2.5V (OFF)
Current
IL
ON /OFF Pin Input Current VLOGIC = 0.5V (ON)
ΘJC Thermal Resistance
TO252-5L
Junction to
Case
ΘJA
Thermal Resistance
with copper area of
TO252-5L
approximately 2cm ×2cm
Junction to
Ambient
-0.01
-0.1
-1
10
50
Unit
nA
KHz
KHz
V
%
A
uA
mA
mA
uA
V
uA
oC/W
oC/W
AP1507 Rev. 1
3 of 10
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
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