GM1937 查看數據表（PDF） - Gamma Microelectronics Inc.
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GM1937 Datasheet PDF : 9 Pages
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GM1937
WHITE LED STEP-UP CONVERTER
Electrical Characteristics (TA = 25℃, Vcc = 3V, VCE = 3V, unless otherwise noted)
Parameter
Symbol
Condition
Min Typ Max Unit
Feeback Voltage
FB Pin Bias Current
VFB ISW = 100mA, Duty Cycle = 66% 86
IFB
10
95 104 mV
45 100 nA
Supply Current
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch VCESAT
Switch Leakage current
CE Voltage High
ICC(ON)
ICC(OFF)
fSW
DMAX
ISW
VSAT
ILEAK
VCE = 0V
ISW = 250mA
VSW = 5V
1.9 2.5 mA
0.1 1.0 µA
0.8 1.2 1.6 MHz
85 90
%
320
mA
350
mV
0.00
1
5
µA
1.5
V
CE Voltage Low
0.4 V
CE Pin Bias Current
ICE
65
µA
4
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