LTM2883 데이터 시트보기 (PDF) - Linear Technology
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LTM2883
Linear Technology
LTM2883 Datasheet PDF : 36 Pages
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LTM2883
Typical Performance Characteristics TA = 25°C, LTM2883-3 VCC = 3.3V,
LTM2883-5 VCC = 5V, VL = 3.3V, GND = GND2 = 0V, ON = VL unless otherwise noted.
V+ Efficiency
60
1.2
LTM2883-3, VCC = 3.3V
LTM2883-5, VCC = 5V
50
1.0
V+ Voltage and ICC Current
vs Load Current
14
VOLTAGE
ICC2 = I– = 0A 350
12
300
40
EFFICIENCY
0.8
30
0.6
20
0.4
POWER LOSS
10
250
8
200
ICC CURRENT
6
150
4
100
10
0.2
ICC2 = I– = 0A
0
0
0
10
20
30
40
50
LOAD CURRENT (mA)
2883 G18
2
LTM2883-3, VCC = 3.3V 50
LTM2883-5, VCC = 5V
0
0
0
10
20
30
40
50
LOAD CURRENT (mA)
2883 G19
V– Efficiency
60
LTM2883-3, VCC = 3.3V
LTM2883-5, VCC = 5V
50
EFFICIENCY
40
30
20
POWER LOSS
10
0
0
10
20
LOAD CURRENT (mA)
0.6
0.5
0.4
0.3
0.2
0.1
0
30
2883 G20
V– Voltage and ICC Current
vs Load Current
–9.0
320
LTM2883-3, VCC = 3.3V
–9.5
LTM2883-5, VCC = 5V
280
–10.0
240
–10.5
200
–11.0
ICC CURRENT 160
–11.5
120
–12.0
80
–12.5
–13.0
0
VOLTAGE
10
20
LOAD CURRENT (mA)
40
0
30
2883 G21
VCC2 Transient Response
20mA Load Step
V+ Transient Response
20mA Load Step
V– Transient Response
20mA Load Step
I+ = 1.5mA
VCC2
100mV/DIV
V+
200mV/DIV
V–
200mV/DIV
ICC2
10mA/DIV
100µs/DIV
I+
10mA/DIV
2883 G22
100µs/DIV
I–
10mA/DIV
2883 G23
100µs/DIV
2883 G24
2883f
9
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