APW7137 Ver la hoja de datos (PDF) - Anpec Electronics
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APW7137 Datasheet PDF : 18 Pages
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APW7137
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.
Symbol
Parameter
Test Conditions
APW7137
Unit
Min. Typ. Max.
SUPPLY VOLTAGE AND CURRENT
VIN
Input Voltage Range
IDD
Input DC Bias Current
ISD
TA = -40 ~ 85°C, TJ = -40 ~ 125°C
VFB = 1.0V, switching
EN = GND
2.5
-
-
1
-
0.1
6
V
2
mA
1
µA
UNDER-VOLTAGE LOCKOUT
UVLO Threshold Voltage
UVLO Hysteresis Voltage
VIN Rising
2.0
2.2
2.4
V
50
100
150 mV
REFERENCE AND OUTPUT VOLTAGES
VREF Regulated Feedback Voltage
IFB
FB Input Current
INTERNAL POWER SWITCH
TA = 25°C
TA = -40 ~ 85°C
1.212 1.23 1.248
V
1.205
-
1.255
-50
-
50
nA
FSW
Switching Frequency
RON Power Switch On Resistance
VFB=1.1V
0.8
1.0
1.2 MHz
-
0.6
-
Ω
ILIM
Power Switch Current Limit
LX Leakage Current
VEN=0V, VLX=0V or 5V, VIN = 5V
1
1.3
1.6
A
-1
-
1
µA
DMAX LX Maximum Duty Cycle
SOFT-START AND SHUTDOWN
TSS
Soft-Start Duration (Note 4)
VTEN EN Voltage Threshold
EN Voltage Hysteresis
VEN Rising
92
95
98
%
-
2
0.4
0.7
-
0.1
3
ms
1
V
-
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.
Copyright © ANPEC Electronics Corp.
3
Rev. A.4 - Oct., 2008
www.anpec.com.tw
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