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LTM4702 Scheda tecnica(PDF) 12 Page - Analog Devices

Il numero della parte LTM4702
Spiegazioni elettronici  20VIN, 20A Step-Down DC-to-DC μModule Regulator
PDF  38 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

LTM4702 Scheda tecnica(HTML) 12 Page - Analog Devices

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Data Sheet
LTM4640
analog.com
Rev. 0
12 of 38
Figure 10. 3.3VOUT Transient Response
Figure 11. Startup Waveform without Load Current
Figure 12. Startup Waveform with 20A Load Current
Figure 13. Output Short-Circuit Waveform without Load
Current Applied
Figure 14. Output Short-Circuit Waveform with 20A Load
Current Applied
Figure 15. Startup into Prebiased Output
100µs/DIV
LOAD STEP
CURRENT
5A/DIV
VOUT
AC-COUPLED
100mV/DIV
VIN = 12V, VOUT = 3.3V, fSW = 1MHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF, 10A ~ 15A (25%) LOAD STEP
10A/μs SLEW RATE
5ms/DIV
INPUT
CURRENT
500mA/DIV
VOUT
1V/DIV
PGOOD
5V/DIV
RUN
10V/DIV
VIN = 12V, VOUT = 1.5V, fSW = 800kHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF, CSS = 0.1µF
5ms/DIV
INPUT
CURRENT
2A/DIV
VOUT
1V/DIV
PGOOD
5V/DIV
RUN
10V/DIV
VIN = 12V, VOUT = 1.5V, fSW = 800kHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF, CSS = 0.1µF
200µs/DIV
INPUT
CURRENT
1A/DIV
VOUT
1V/DIV
VIN = 12V, VOUT = 1.5V, fSW = 800kHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF
VIN = 12V, VOUT = 1.5V, fSW = 800kHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF
200µs/DIV
INPUT
CURRENT
1A/DIV
VOUT
1V/DIV
5ms/DIV
INPUT
CURRENT
500mA/DIV
VOUT
2V/DIV
PGOOD
5V/DIV
RUN
10V/DIV
VIN = 12V, VOUT = 3.3V, fSW = 800kHz
COUT = 4 × 220µF + 2 × 2.2µF + 1µF CERAMIC CAPACITOR
INTERNAL COMPENSATION, COMPa CONNECT TO
COMPb, CFF = 100pF, CSS = 0.1µF



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