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LTM4677 Datasheet(PDF) 5 Page - Linear Technology

Part # LTM4677
Description  30A DC/DC Step-Down 關Module Regulator
PDF  34 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4677 Datasheet(HTML) 5 Page - Linear Technology

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LTM4647
5
4647fb
For more information www.linear.com/LTM4647
TYPICAL PERFORMANCE CHARACTERISTICS
0.8V Output Load Stop Transient
Response
1V Output Load Step Transient
Response
1.2V Output Load Step Transient
Response
1.5V Output Load Step Transient
Response
Efficiency vs Output Current,
VIN = 5V
Efficiency vs Output Current,
VIN = 12V
CCM, Burst Mode and Pulse-
Skipping Mode Efficiency VIN =
12V, VOUT = 1.2V, 500kHz
LOAD CURRENT (A)
0
100
95
85
80
90
75
65
70
20
10
25
4647 G01
30
15
5
0.8VOUT, 400kHz
1VOUT, 500kHz
1.2VOUT, 500kHz
1.5VOUT, 600kHz
1.8VOUT, 700kHz
LOAD CURRENT (A)
0
100
95
85
80
90
75
65
70
20
10
25
4647 G02
30
15
5
0.8VOUT, 400kHz
1VOUT, 500kHz
1.2VOUT, 500kHz
1.5VOUT, 600kHz
1.8VOUT, 700kHz
LOAD CURRENT (A)
4647 G03
100
90
80
70
40
30
20
10
50
60
0
0.1
10
100
1
CCM
Burst Mode OPERATION
PULSE-SKIPPING MODE
4647 G07
VIN = 12V, VOUT = 1.5V, FS = 600kHz
COUT = 6 × 100µF CERAMIC
0A to 7.5A LOAD STEP, 10A/µs
20µs/DIV
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
10A/DIV
SW
20V/DIV
1.8V Output Load Step Transient
Response
4647 G08
VIN = 12V, VOUT = 1.8V, FS = 700kHz
COUT = 6 × 100µF CERAMIC
0A to 7.5A LOAD STEP, 10A/µs
20µs/DIV
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
10A/DIV
SW
20V/DIV
4647 G04
VIN = 12V, VOUT = 0.8V, FS = 400kHz
COUT = 6 × 100µF CERAMIC
0A to 7.5A LOAD STEP, 10A/µs
20µs/DIV
VOUT
50mV/DIV
AC-COUPLED
SW
20V/DIV
LOAD STEP
10A/DIV
4647 G05
VIN = 12V, VOUT = 1V, FS = 500kHz
COUT = 6 × 100µF CERAMIC
0A to 7.5A LOAD STEP, 10A/µs
20µs/DIV
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
10A/DIV
SW
20V/DIV
4647 G06
VIN = 12V, VOUT = 1.2V, FS = 500kHz
COUT = 6 × 100µF CERAMIC
0A to 7.5A LOAD STEP, 10A/µs
20µs/DIV
VOUT
50mV/DIV
AC-COUPLED
LOAD STEP
10A/DIV
SW
20V/DIV



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