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LTC1735IGN 데이터시트(PDF) 4 Page - Linear Technology

부품명 LTC1735IGN
상세설명  High Efficiency Synchronous Step-Down Switching Regulator
PDF  32 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC1735IGN 데이터시트(HTML) 4 Page - Linear Technology

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4
LTC1735
TYPICAL PERFOR A CE CHARACTERISTICS
Efficiency vs Load Current
(3 Operating Modes)
Efficiency vs Load Current
Efficiency vs Input Voltage
LOAD CURRENT (A)
0.001
60
70
80
BURST
SYNC
CONT
10
1735 G01
50
40
20
0.01
0.1
1
30
100
90
VIN = 10V
VOUT = 3.3V
RS = 0.01Ω
fO = 300kHz
EXTVCC OPEN
LOAD CURRENT (A)
0.01
0.1
1
10
1735 G02
100
90
80
70
60
50
40
VIN = 5V
EXTVCC = 5V
FIGURE 1
VIN = 24V
VIN = 15V
INPUT VOLTAGE (V)
0
70
75
80
85
90
100
5
10
15
20
1735 G03
25
30
95
EXTVCC = 5V
VOUT = 1.6V
FIGURE 1
IOUT = 5A
IOUT = 0.5A
Efficiency vs Input Voltage
Load Regulation
VIN – VOUT Dropout Voltage
vs Load Current
INPUT VOLTAGE (V)
0
70
75
80
85
90
100
5
10
15
20
1735 G04
25
30
95
EXTVCC OPEN
VOUT = 1.6V
FIGURE 1
IOUT = 5A
IOUT = 0.5A
LOAD CURRENT (A)
0
–0.2
–0.1
8
1735 G05
–0.3
–0.4
2
4
6
10
0
FCB = 0V
VIN = 15V
FIGURE 1
LOAD CURRENT (A)
0
0
500
400
300
200
100
2468
1735 G06
10
RSENSE = 0.005Ω
VOUT = 5V – 5% DROP
Input and Shutdown Currents
vs Input Voltage
INTVCC Line Regulation
INPUT VOLTAGE (V)
05
0
200
500
10
20
25
1735 G07
100
400
300
0
40
100
20
80
60
15
30
35
EXTVCC OPEN
SHUTDOWN
EXTVCC = 5V
INPUT VOLTAGE (V)
0
4
5
6
15
25
1735 G08
3
2
510
20
30
35
1
0
1mA LOAD
EXTVCC Switch Drop
vs INTVCC Load Current
INTVCC LOAD CURRENT (mA)
0
300
400
500
40
1735 G09
200
100
0
10
20
30
50



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