LTC1701B 查看數據表（PDF） - Linear Technology
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LTC1701B Datasheet PDF : 12 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LTC1701/LTC1701B
Efficiency vs Load Current
100
VOUT = 2.5V
95
VIN = 3.3V
90
VIN = 5.0V
85
80
75
70
1
LTC1701
LTC1701B
10
100
LOAD CURRENT (mA)
1000
1701 • G01
Efficiency vs Input Voltage
100
VOUT = 2.5V
95
ILOAD =100mA
90
85
ILOAD =10mA
80
75
70
65
LTC1701
LTC1701B
60
2
3
4
5
6
INPUT VOLTAGE (V)
1701 • G02
DC Supply Current
300
250
200
ACTIVE
150
SLEEP
100
50
0
2
3
4
5
6
INPUT VOLTAGE (V)
1701 • G03
Switch Resistance vs
Supply Voltage
370
350
330
310
290
270
250
2
3
4
5
SUPPLY VOLTAGE (V)
6
1701 • G04
Load Regulation
0.60
0.40
0.20
VOUT = 5.0V
0.00
–0.20
–0.40
–0.60
–0.80
VOUT = 3.3V
–1.00
–1.20
–1.40
0
200
400
600
LOAD CURRENT (mA)
1701 • G05
Line Regulation
0.30
0.25
ILOAD = 200mA
0.20
0.15
0.10
ILOAD = 400mA
0.05
0
2
3
4
5
VIN (V)
Dropout Characteristics
3.4
3.3 ILOAD = 100mA
3.2
Start-Up
VOUT
1V/DIV
3.1
3.0
2.9
2.8
2.7
2.6
3.0
ILOAD = 200mA
ILOAD = 500mA
VOUT = 3.3V
FIGURE 1
3.2
3.4
3.6
3.8
VIN (V)
701 • G07
ITH
2V/DIV
IL
500mA/DIV
VIN = 3.3V, VOUT = 2.5V
CIRCUIT OF FIGURE 1
RLOAD = 6Ω
Transient Response
VOUT
50mV/DIV
AC COUPLED
IL
200mA/DIV
1701 G08
VIN = 3.3V, VOUT = 2.5V
CIRCUIT OF FIGURE 1
ILOAD = 100mA TO 500mA STEP
6
1701 • G06
1701 G09
3
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