APW1173 查看數據表（PDF） - Anpec Electronics
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APW1173 Datasheet PDF : 21 Pages
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APW1173
Electrical Characteristics (Cont.)
The * denotes the specifications that apply over TA = -40 ~ 85oC. Typical values are at TA = 25oC.
VCC = 12V unless otherwise specified.
Symbol
Parameter
Test condition
APW1173
Unit
Min Typ Max
Reference Section
VREF VREF Output Voltage
IREF = 0mA
3.234 3.3 3.366 V
IREF
22V
=
0mA
to
5mA,VCC
=
4.4A
to
*
3.2
3.3 3.399 V
Line Regulation
IREF = 0mA,VCC = 4.4A to 22V
5
10 mV
Load Regulation
IREF = 0mA to 5mA
8
15 mV
Short Circuit Current
10 18 30 mA
Other
Thermal Limiting Protection
160
°C
Hysteresis
Over-Voltage Protection
Threshold Voltage
VCOMP = 0.8V
30
°C
* 120 125 130 %
Typical Application Circuit
VOUT = 3.3V
L
22uH
COUT
100uF
D1
1N5819
VREF = 3.3V
RC1
4.3K
1 OUT VCC 8
2 SYNC GND 7
3 INH VREF 6
4 COMP FB 5
D2
1N4148 APW1173
CC1
2.2nF
CC2
220pF
R1
C1 137K
1uF
Soft Start
Circuit
RF2 RF1
3.3K 5.6K
CIN
VIN
22uF 4.8V to 22V
Copyright © ANPEC Electronics Corp.
5
Rev. A.5 - Aug., 2005
www.anpec.com.tw
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