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LTC3860 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3860
Description  Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Current Sharing
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3860 Datasheet(HTML) 6 Page - Linear Technology

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LTC3860

3860f
Typical perFormance characTerisTics
Soft-Start Start-Up
Raitometric Tracking Start-Up
Line Step Transient Response
(2-Phase)
Oscillator Frequency
vs Supply Voltage
SUPPLY VOLTAGE (V)
3.0
1.175
1.200
1.225
4.5
5.5
3860 G13
1.150
1.125
1.100
3.5
4.0
5.0
1.250
1.275
1.300
5ms/DIV
3860 G15
VIN = 12V
VOUT1 = 1.2V
0.1µF CAPACITOR ON TRACK/SS1
VOUT1
200mV/DIV
Coincident Tracking Start-Up
2µs/DIV
3860 G16
CHANNEL 1 TRACKING OFF PULSE GENERATOR
VOUT1
500mV/DIV
TRACK/SS1
500mV/DIV
2µs/DIV
3860 G17
CHANNEL 1 TRACKING OFF PULSE GENERATOR
VOUT1
500mV/DIV
TRACK/SS1
500mV/DIV
VOUT
50mV/DIV
VIN
5V/DIV
COMP1
100mV/DIV
20µs/DIV
3860 G18
VIN = 12V
VOUT = 1.8V
VIN STEP = 7V TO 14V
IL1
5A/DIV
IL2
5A/DIV
Line Step Transient Response
(2-Phase)
VOUT
50mV/DIV
VIN
5V/DIV
COMP1
100mV/DIV
20µs/DIV
3860 G19
VIN = 12V
VOUT = 1.2V
VIN STEP = 7V TO 14V
IL1
5A/DIV
IL2
5A/DIV
Line Step Transient Response
(Single Phase)
20µs/DIV
VOUT = 1.2V
VIN STEP = 7V TO 14V
3860 G20
VOUT
50mV/DIV
IL
2A/DIV
VIN
5V/DIV
COMP1
100mV/DIV



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