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AP1518 Datasheet(PDF) 3 Page - Anachip Corp

Part # AP1518
Description  300KHz, 3A PWM Buck DC/DC Converter
PDF  12 Pages
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Manufacturer  ANACHIP [Anachip Corp]
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Logo ANACHIP - Anachip Corp

AP1518 Datasheet(HTML) 3 Page - Anachip Corp

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AP1518
300KHz, 3A PWM Buck DC/DC Converter
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Oct 29, 2004
3/12
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, ILOAD = 0.5A
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
-50
IFB
Feedback bias current
VFB=0.8V
(Adjustable version only)
-10
-100
nA
255
300
345
FOSC
Oscillator frequency
220
345
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
TO263-5L
Junction to
case
3.5
oC/W
TO220-5L
28
ΘJA
Thermal Resistance
With copper area of
approximately 3 in
2
TO263-5L
Junction to
ambient
23
oC/W
Specifications with boldface type are for full operating temperature range, the other type are for TJ=25ºC.



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