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| LTC3388-1_15 Datasheet, PDF (8/20 Pages) Linear Technology – 20V High Efficiency Nanopower Step-Down Regulator | |||
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LTC3388-1/LTC3388-3
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs ILOAD, L = 22μH
(LTC3388-3)
100
VIN = 6.0V
90
80
70
60
50
40
30
20
10
0
1μ
VOUT = 5.0V
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
10μ 100μ 1m
LOAD CURRENT (A)
10m
338813 G28
Efficiency vs VIN for ILOAD = 50mA,
L = 22μH (LTC3388-3)
100
95
90
85
80
VOUT = 5.0V
75
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
70
4 6 8 10 12 14 16 18 20
VIN (V)
338813 G30
Efficiency vs VIN for VOUT = 3.3V,
L = 22μH (LTC3388-3)
100
90
80
70
60
50
ILOAD = 50mA
ILOAD = 100μA
40
ILOAD = 50μA
ILOAD = 30μA
ILOAD = 10μA
30
4 6 8 10 12 14 16 18 20
VIN (V)
338813 G32
Efficiency vs ILOAD, L = 100μH
(LTC3388-3)
100
VIN = 6.0V
90
80
70
60
50
40
30
20
10
0
1μ
VOUT = 5.0V
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
10μ 100μ 1m
LOAD CURRENT (A)
10m
338813 G29
Efficiency vs VIN for ILOAD = 50mA,
L = 100μH (LTC3388-3)
100
95
90
85
80
VOUT = 5.0V
75
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
70
4 6 8 10 12 14 16 18 20
VIN (V)
338813 G31
Efficiency vs VIN for VOUT = 3.3V,
L = 100μH (LTC3388-3)
100
90
80
70
60
50
ILOAD = 50mA
ILOAD = 100μA
40
ILOAD = 50μA
ILOAD = 30μA
ILOAD = 10μA
30
4 6 8 10 12 14 16 18 20
VIN (V)
338813 G33
8
338813f
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