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LT1074CK 数据表(PDF) 7 Page - Linear Technology

部件名 LT1074CK
功能描述  Step-Down Switching Regulator
PDF  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1074CK 数据表(HTML) 7 Page - Linear Technology

Back Button LT1074CK Datasheet HTML 3Page - Linear Technology LT1074CK Datasheet HTML 4Page - Linear Technology LT1074CK Datasheet HTML 5Page - Linear Technology LT1074CK Datasheet HTML 6Page - Linear Technology LT1074CK Datasheet HTML 7Page - Linear Technology LT1074CK Datasheet HTML 8Page - Linear Technology LT1074CK Datasheet HTML 9Page - Linear Technology LT1074CK Datasheet HTML 10Page - Linear Technology LT1074CK Datasheet HTML 11Page - Linear Technology Next Button
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background image
LT1074/LT1076
7
Reference Shift with Ripple
Voltage
Feedback Pin Frequency Shift
Supply Current (Shutdown)
Reference Voltage vs
Temperature
Switch “On” Voltage
Error Amplifier Phase and GM
Switching Frequency vs
Temperature
Current Limit vs Temperature*
TYPICAL PERFOR A CE CHARACTERISTICS
INPUT VOLTAGE (V)
0
0
50
100
150
200
250
300
30
50
60
LT1074•TPC13
10
20
40
JUNCTION TEMPERATURE (
°C)
–50
2.19
2.20
2.21
2.22
2.23
2.24
2.25
–25
0
25
50
LT1074•TPC14
2.18
2.17
75
100 125 150
0
3.0
2.5
2.0
1.5
1.0
0.5
12
3
LT1074•TPC28
4
56
SWITCH CURRENT (A)
T = 25
°C
j
LT1074
LT1076
SQUARE
WAVE
PEAK-TO-PEAK RIPPLE AT FB PIN (mV)
0
–80
–70
–60
–50
–40
–30
20
20 40
60 80
LT1074•TPC16
100 120 140 160 180 200
–20
–10
0
10
TRI WAVE
FREQUENCY (Hz)
8k
1k
100k
1M
10M
0
10k
1k
2k
3k
4k
5k
6k
7k
200
150
100
50
0
–50
θ
M
G
–100
–150
–200
LT1074•TPC17
JUNCTION TEMPERATURE (
°C)
–50
80
95
100
105
110
115
120
–25
0
25
50
LT1074•TPC18
90
85
75
100 125 150
FEEDBACK PIN VOLTAGE (V)
0
0
1.0
1.5
3.0
LT1074•TPC19
0.5
2.0
2.5
20
160
40
60
80
100
120
140
–55
°C
25
°C
150
°C
JUNCTION TEMPERATURE (
°C)
1
2
3
4
5
6
7
LT1074•TPC22
8
0
–50 –25
0
25
50
75
100 125 150
*MULTIPLY CURRENTS BY 0.4 FOR LT1076
I
PIN OPEN
LIM
R
= 10k
Ω
LIM
R
= 5k
Ω
LIM



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