LTC4008 データシートの表示（PDF） - Linear Technology
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LTC4008 Datasheet PDF : 32 Pages
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LTC3731
TYPICAL PERFOR A CE CHARACTERISTICS
Differential Amplifier Gain-Phase
0
0
–3
–45
–6
–90
–9
–135
–12
–180
–15
0001
Shed Mode at 1 Amp, Light Load
Current (Circuit of Figure 14)
0.01
0.1
1
FREQUENCY (MHz)
–225
10
3731 G19
Burst Mode at 1 Amp, Light Load
Current (Circuit of Figure 14)
VOUT
AC, 20mV/DIV
VSW1
10V/DIV
VSW2
10V/DIV
VSW3
10V/DIV
VIN = 12V
4µs/DIV
VOUT = 1.5V
VFCB = VCC
FREQUENCY = 250kHz
3731 G20
Continuous Mode at 1 Amp, Light
Load Current (Circuit of Figure 14)
VOUT
AC, 20mV/DIV
VSW1
10V/DIV
VSW2
10V/DIV
VSW3
10V/DIV
VIN = 12V
4µs/DIV
VOUT = 1.5V
VFCB = 0V
FREQUENCY = 250kHz
8
3731 G22
VOUT
AC, 20mV/DIV
VSW1
10V/DIV
VSW2
10V/DIV
VSW3
10V/DIV
VIN = 12V
4µs/DIV
VOUT = 1.5V
VFCB = OPEN
FREQUENCY = 250kHz
3731 G21
Transient Load Current Response: 0 Amp
to 50 Amp (Circuit of Figure 14)
VOUT
AC, 20mV/DIV
ILOAD
20A/DIV
VIN = 12V
20µs/DIV
VOUT = 1.5V
VFCB = VCC
FREQUENCY = 250kHz
3731 G23
3731fa
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