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LTC3707IGN 数据表(PDF) 7 Page - Linear Technology

部件名 LTC3707IGN
功能描述  High Effi ciency, 2-Phase Synchronous Step-Down Switching Regulator
PDF  32 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3707IGN 数据表(HTML) 7 Page - Linear Technology

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LTC3707
7
3707fb
TYPICAL PERFORMANCE CHARACTERISTICS
Input Source/Capacitor
Instantaneous Current (Figure 13)
Burst Mode Operation (Figure 13)
Constant Frequency (Burst Inhibit)
Operation (Figure 13)
Current Sense Pin Input Current
vs Temperature
EXTVCC Switch Resistance
vs Temperature
Oscillator Frequency
vs Temperature
Undervoltage Lockout
vs Temperature
Shutdown Latch Thresholds
vs Temperature
TEMPERATURE (°C)
–50
–25
25
29
35
0
50
75
3707 G26
27
33
31
25
100
125
VOUT = 5V
TEMPERATURE (°C)
–50
–25
0
4
10
0
50
75
3707 G27
2
8
6
25
100
125
TEMPERATURE (°C)
–50
200
250
350
25
75
3707 G28
150
100
–25
0
50
100
125
50
0
300
VFREQSET = 5V
VFREQSET = OPEN
VFREQSET = 0V
TEMPERATURE (°C)
–50
3.40
3.45
3.50
25
75
3707 G29
3.35
3.30
–25
0
50
100
125
3.25
3.20
TEMPERATURE (°C)
–50
–25
0
0.5
1.5
2.0
2.5
75
100
50
4.5
3707 G30
1.0
0
25
125
3.0
3.5
4.0
LATCH ARMING
LATCHOFF
THRESHOLD
VIN = 15V
VOUT = 5V
IOUT5 = IOUT3.3 = 2A
1μs/DIV
3707 G22
VIN
200mV/DIV
IIN
2A/DIV
VSW2
10V/DIV
VSW1
10V/DIV
VIN = 15V
VOUT = 5V
VFCB = OPEN
IOUT = 20mA
10μs/DIV
3707 G23
IOUT
0.5A/DIV
VOUT
20mV/DIV
VIN = 15V
VOUT = 5V
VFCB = 5V
IOUT = 20mA
2μs/DIV
3707 G24
IOUT
0.5A/DIV
VOUT
20mV/DIV



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