AX4102SA 查看數據表（PDF） - Unspecified
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AX4102SA Datasheet PDF : 9 Pages
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授权代理商：深圳市四海恒通科技有限公司
电话：0755-8398 3377 135 9011 2223
http://www.gofotech.com
AX4102
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
Characteristics
Symbol
Rating
Unit
VCC Pin Voltage
VCC VSS - 0.3 to VSS + 25 V
Feedback Pin Voltage
VFB
VSS - 0.3 to VCC
V
ON/OFF Pin Voltage
VEN VSS - 0.3 to VCC + 0.3 V
Switch Pin Voltage
VSW VSS - 0.3 to VCC + 0.3 V
Power Dissipation
PD
Internally limited mW
Storage Temperature Range
TST
-40 to +150
°C
Operating Junction Temperature Range
TJ
-20 to +125
°C
Operating Supply Voltage
VOP
+3.6 to +23
V
Output Current
IOUT
0 to 3.5
A
Peak Current
IPeak
6.0
A
Thermal Resistance from Junction to case
θJC
25
°C/W
Thermal Resistance from Junction to ambient
θJA
70
°C/W
Note : θJA is measured with the PCB copper area(need connect to SW pins) of approximately 1 in2(Multi-layer).
ELECTRICAL CHARACTERISTICS
(VIN = 12V, VOUT=3.3V, TA=25°C, unless otherwise specified)
Characteristics
Symbol
Conditions
Min Typ Max Units
Feedback Voltage
Quiescent Current
Feedback Bias Current
Shutdown Supply Current
OCSET pin bias current
VFB
ICCQ
IFB
ISD
IOCSET
IOUT=0.1A
0.784 0.8 0.816 V
VFB=1.2V force driver off - 3 5 mA
IOUT=0.1A
- 0.1 0.5 uA
VEN =0V
- 2 10 uA
110 130 150 uA
Switch Current
Line Regulation
Load Regulation
ISW
4.5 - - A
△VOUT/VOUT VCC = 8V~23V, IOUT=0.2A - 1 2 %
△VOUT/VOUT IOUT = 0.1 to 3.5A
- 0.2 0.5 %
Oscillation Frequency
EN Pin Logic input
threshold voltage
FOSC SW pin
VSH High (regulator ON)
VSL Low (regulator OFF)
260 330 400 KHz
2.0 - -
V
- - 0.8
EN Pin Input Current
ISH VEN=2.5V (ON)
ISL VEN=0.3V (OFF)
- 20 - uA
- -10 - uA
Internal MOSFET RDSON
RDSON
VCC=5V, VFB=0V
VCC=12V, VFB=0V
- 80 140
mΩ
- 55 90
Efficiency
EFFI VCC=12V, IOUT = 2A
92
-
-
%
VOUT = 5V IOUT = 3.5A
90
3/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Aug.06, 2010
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