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LTC3811 Datasheet(PDF) 10 Page - Linear Technology

Part # LTC3811
Description  High Speed Dual, Multiphase Step-Down DC/DC Controller
Download  48 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3811 Datasheet(HTML) 10 Page - Linear Technology

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LTC3811
10
3811f
TYPICAL PERFORMANCE CHARACTERISTICS
Top Gate Turn-On Waveform
Driving Renesas RJK0305DPB
Start-Up Into a Pre-Biased
Output Capacitor
Sequenced Start-Up
Ratiometric Tracking Start-Up
Coincident Tracking Start-Up
10ns/DIV
3811 G37
VIN = 12V
VOUT = 1.5V
IOUT = 5A
2V/DIV
TG – SW
Top Gate Turn-Off Waveform
Driving Renesas RJK0305DPB
10ns/DIV
3811 G38
VIN = 12V
VOUT = 1.5V
IOUT = 5A
2V/DIV
TG – SW
Bottom Gate Turn-On Waveform
Driving Renesas RJK0301DPB
25ns/DIV
3811 G39
VIN = 12V
VOUT = 1.5V
IOUT = 5A
2V/DIV
Bottom Gate Turn-Off Waveform
Driving Renesas RJK0301DPB
25ns/DIV
3811 G40
VIN = 12V
VOUT = 1.5V
IOUT = 5A
2V/DIV
Single Output, 2-Phase Current
Sharing Waveforms
1μs/DIV
3811 G41
VIN = 12V
VOUT = 1.5V
IOUT = 16A
IL
5A/DIV
SW1
10V/DIV
SW2
10V/DIV
1V
PRE BIAS
500μs/DIV
3811 G42
VOUT = 3.3V
1V/DIV
OV
RUN2
5V/DIV
500mV/DIV
RUN1
2V/DIV
10ms/DIV
3811 G43
VIN = 12V
RLOAD1 = RLOAD2 = 1.5Ω
RUN2 CONNECTED TO PGOOD1
VOUT1 = 2V
VOUT2 = 1.5V
500mV/DIV
5ms/DIV
3811 G44
VIN = 12V
RLOAD1 = RLOAD2 = 1.5Ω
VOUT1 = 2V
VOUT2 = 1.5V
500mV/DIV
5ms/DIV
3811 G45


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