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APW7137 Datasheet(PDF) 3 Page - Anpec Electronics Coropration

Part # APW7137
Description  1MHz, High Efficiency, Step-Up Converter with Internal FET Switch
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.4 - Oct., 2008
APW7137
www.anpec.com.tw
3
Electrical Characteristics
Refer to the typical application circuits. These specifications apply over VIN = 3.6V, IOUT = 0mA, TA = -40°C to 85°C, unless
otherwise noted. Typical values are at TA = 25°C.
APW7137
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
SUPPLY VOLTAGE AND CURRENT
VIN
Input Voltage Range
TA = -40 ~ 85°C, TJ = -40 ~ 125°C
2.5
-
6
V
IDD
VFB = 1.0V, switching
-
1
2
mA
ISD
Input DC Bias Current
EN = GND
-
0.1
1
µA
UNDER-VOLTAGE LOCKOUT
UVLO Threshold Voltage
VIN Rising
2.0
2.2
2.4
V
UVLO Hysteresis Voltage
50
100
150
mV
REFERENCE AND OUTPUT VOLTAGES
TA = 25°C
1.212
1.23
1.248
VREF
Regulated Feedback Voltage
TA = -40 ~ 85°C
1.205
-
1.255
V
IFB
FB Input Current
-50
-
50
nA
INTERNAL POWER SWITCH
FSW
Switching Frequency
VFB=1.1V
0.8
1.0
1.2
MHz
RON
Power Switch On Resistance
-
0.6
-
ILIM
Power Switch Current Limit
1
1.3
1.6
A
LX Leakage Current
VEN=0V, VLX=0V or 5V, VIN = 5V
-1
-
1
µA
DMAX
LX Maximum Duty Cycle
92
95
98
%
SOFT-START AND SHUTDOWN
TSS
Soft-Start Duration
(Note 4)
-
2
3
ms
VTEN
EN Voltage Threshold
VEN Rising
0.4
0.7
1
V
EN Voltage Hysteresis
-
0.1
-
V
ILEN
EN Leakage Current
VEN=5V, VIN = 5V
-1
±0.5
1
µA
OVER-TEMPERATURE PROTECTION
TOTP
Over-Temperature Protection
(Note 4)
TJ Rising
-
150
-
°C
Over-Temperature Protection
Hysteresis
(Note 4)
-
40
-
°C
Note 4: Guaranteed by design, not production tested.


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