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LTC1159CS Datasheet(PDF) 4 Page - Linear Technology

Part # LTC1159CS
Description  High Efficiency Synchronous Step-Down Switching Regulators
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1159CS Datasheet(HTML) 4 Page - Linear Technology

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LTC1159/LTC1159-3.3/LTC1159-5
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Load Regulation
Efficiency vs Input Voltage
Line Regulation
Operating Frequency
vs (VIN – VOUT)
EXTVCC Switch Drop
Current Sense Threshold Voltage
EXTVCC Pin Current
VIN Pin Current
Off-Time vs VOUT
INPUT VOLTAGE (V)
0
80
85
90
95
100
510
15
20
LTC1159 • TPC01
25
30
35
40
FIGURE 1 CIRCUIT
ILOAD = 1A
NOTE 6
LOAD CURRENT (A)
0
–100
–80
–60
–40
–20
0
20
0.5
1.0
1.5
2.0
LTC1159 • TPC03
2.5
FIGURE 1 CIRCUIT
VIN = 24V
INPUT VOLTAGE (V)
0
6
8
10
15
25
40
LTC1159 • TPC04
4
2
0
510
20
30
35
FIGURE 1 CIRCUIT
NOTE 6
ILOAD = 1A
ILOAD = 100mA
ILOAD = 0
INPUT VOLTAGE (V)
0
300
400
500
15
25
40
LTC1159 • TPC05
200
100
0
510
20
30
35
FIGURE 1 CIRCUIT
NOTE 6
NORMAL
VSHDN2 = 2V
(VIN – VOUT) VOLTAGE (V)
0
1.0
1.5
20
LTC1159 • TPC06
0.5
0
5
10
15
25
2.0
VOUT = 5V
T = 70°C
T = 0°C
T = 25°C
SWITCH CURRENT (mA)
0
0
100
200
300
400
500
600
510
15
20
LTC1159 • TPC07
OUTPUT VOLTAGE (V)
1
40
50
60
5
LTC1159 • TPC08
30
20
0
2
34
10
80
70
0
LTC1159-5
LTC1159-3.3
TEMPERATURE (°C)
20
80
100
120
100
LTC1159 • TPC09
60
40
0
40
60
80
20
160
140
0
MAXIMUM
THRESHOLD
MINIMUM
THRESHOLD
INPUT VOLTAGE (V)
0
–60
–40
–20
0
20
10
20
30
40
LT1159 • TPC02
40
60
515
25
35
FIGURE 1 CIRCUIT
ILOAD = 1A
NOTE 6



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