LTC1624 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1624' PDF : 28 Pages View PDF
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current
VOUT = 3.3V
100
VOUT = 3.3V
95 RSENSE = 0.033Ω
VIN = 5V
90
VIN = 10V
85
80
75
70
0.001
0.01
0.1
1
LOAD CURRENT (A)
10
1624 G07
Efficiency vs Input Voltage
VOUT = 5V
100
VOUT = 5V
RSENSE = 0.033Ω
95
ILOAD = 1A
90
85
ILOAD = 0.1A
80
75
70
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1624 G10
Efficiency vs Input Voltage
VOUT = 3.3V
100
VOUT = 3.3V
RSENSE = 0.033Ω
95
90
ILOAD = 1A
85
ILOAD = 0.1A
80
75
70
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1624 G09
VIN – VOUT Dropout Voltage
vs Load Current
0.7
RSENSE = 0.033Ω
0.6 VOUT DROP OF 5%
0.5
0.4
0.3
0.2
0.1
0
0 0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
1624 G11
Boost Line Regulation
6
5
4
3
2
1 IBOOST = 1mA
VSW = 0V
0
05
10 15 20 25
INPUT VOLTAGE (V)
30 35
1624 G04
Boost Load Regulation
6
VIN = 15V
5
VIN = 5V
4
3
2
1
VSW = 0V
0
0
5 10 15 20 25 30
BOOST LOAD CURRENT (mA)
1624 G06
LTC1624
Efficiency vs Load Current
VOUT = 5V
100
VOUT = 5V
95
VIN = 10V
RSENSE = 0.033Ω
90
85
80
75
70
0.001
0.01
0.1
1
LOAD CURRENT (A)
10
1624 G08
Input Supply Current vs
Input Voltage
700
VFB = 1.21V
600
SLEEP MODE
500
400
300
200
100
SHUTDOWN
0
05
10 15 20 25 30 35
INPUT VOLTAGE (V)
1624 G05
Boost Voltage vs Temperature
6.0
ILOAD = 1mA
5.5
5.0
4.5
4.0
–40 –15
10 35 60 85
TEMPERATURE (°C)
110 135
1624 G15
3
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