AP1522 查看數據表（PDF） - Anachip Corporation
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AP1522 Datasheet PDF : 8 Pages
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Step-Up DC/DC Converter
AP1522
Electrical Characteristics (Ta=25°C, VIN = 5V, VSHDN = 5V, unless otherwise noted.)
Symbol
Parameter
VIN Minimum Operation Voltage
VIN Maximum Operation Voltage
VFB Feedback Pin Voltage
IFB Feedback Pin Bios Current
Supply Current
FSW Switching frequency
Duty
ISW
VSAT
VSHDN
VSHDN
ISHDN
PWM Maximum Duty Cycle
Switch Current Limit
Switch VSAT
Switch Leakage Current
SHDN Pin Voltage High
SHDN Pin Voltage Low
SHDN Pin Bios Current
Conditions
-
-
-
-
Operation current
VSHDN = 0V
ISW = 250mA
VSW = 5V
Enable
Disable
Min.
2.5
-
1.225
10
-
-
Typ.
-
-
1.25
45
2
0.1
Max. Unit
-
V
10 V
1.275 V
100 nA
3 mA
1.0 µA
0.75 1.0 1.25 MHz
85
90
-
%
280 320 360 mA
-
350
- mV
-
0.1
5 µA
0.6
-
-
V
-
-
0.5 V
-
10
- µA
Typical Application Circuit
Vout=10V
C2
4.7uF
R1
70K
D1
Option
R2
10K
L1
10uH
SW Vin
Vss
FB SHDN
Vin=3.3V
C1
4.7uF
ON OFF
VOUT=VFB (1+
R1
R2
)
1K < R2 < 50K
Anachip Corp.
www.anachip.com.tw
Rev. 1.0 May. 5, 2005
3/8
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