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LTM4615 Datasheet(PDF) 5 Page - Linear Technology

Part # LTM4615
Description  20VIN, Dual 4A or Single 8A DC/DC 關Module Regulator
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4615 Datasheet(HTML) 5 Page - Linear Technology

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LTM4642
5
4642fb
For more information www.linear.com/LTM4642
Typical perForMance characTerisTics
3.3VIN to 1.5VOUT Transient
Response
5VIN to 1.5VOUT Transient
Response
3.3VIN to 1VOUT Transient
Response
Efficiency vs Load Current at
3.3VIN, CCM Mode, External 5V
Bias
5VIN to 1VOUT Transient Response
Efficiency vs Load Current at
5VIN, CCM Mode
12VIN to 1VOUT Transient
Response
Efficiency vs Load Current at
12VIN, CCM Mode
Efficiency vs Load Current at
20VIN, CCM Mode
(Refer to Figures 19 and 20) TA = 25°C, unless otherwise noted.
LOAD CURRENT (A)
0
92
96
4
4642 G01
88
84
1
2
3
0.5
1.5
2.5
3.5
100
90
94
86
98
3.3V TO 2.5V (600kHz)
3.3V TO 1.8V (600kHz)
3.3V TO 1.5V (600kHz)
3.3V TO 1.2V (600kHz)
3.3V TO 1V (600kHz)
LOAD CURRENT (A)
0
80
90
4
4642 G02
70
1
2
3
0.5
1.5
2.5
3.5
100
75
85
95
5V TO 3.3V (800kHz)
5V TO 2.5V (800kHz)
5V TO 1.8V (750kHz)
5V TO 1.5V (650kHz)
5V TO 1.2V (650kHz)
5V TO 1V (650kHz)
LOAD CURRENT (A)
0
80
90
4
4642 G02
70
1
2
3
0.5
1.5
2.5
3.5
100
75
85
95
12V TO 5V (1.2MHz)
12V TO 3.3V (1MHz)
12V TO 2.5V (1MHz)
12V TO 1.8V (800kHz)
12V TO 1.5V (800kHz)
12V TO 1.2V (650kHz)
12V TO 1V (650kHz)
LOAD CURRENT (A)
0
80
90
4
4642 G04
70
60
1
2
3
0.5
1.5
2.5
3.5
100
75
85
65
95
20V TO 1.8V (800kHz)
20V TO 1.5V (800kHz)
20V TO 1.2V (650kHz)
20V TO 1V (650kHz)
20V TO 5V (1.2MHz)
20V TO 3.3V (1MHz)
20V TO 2.5V (1MHz)
COUT = 100µF 15m ESR POSCAP,
47µF CERAMIC
CFF = 470pF
fSW = 600kHz
4642 G05
1VOUT
20mV/DIV
ISTEP = 2A/µs
2A/DIV
20µs/DIV
IN
OUT
COUT = 100µF 15m ESR POSCAP,
47µF CERAMIC
CFF = 470pF
fSW = 650kHz
4642 G06
ISTEP = 2A/µs
2A/DIV
1VOUT
20mV/DIV
20µs/DIV
IN
OUT
COUT = 100µF 15m ESR POSCAP,
47µF CERAMIC
CFF = 470pF
fSW = 650kHz
4642 G07
ISTEP =
2A/µs
2A/DIV
1VOUT
20mV/DIV
20µs/DIV
IN
OUT
COUT = 120µF 22m ESR OSCON SVP,
47µF CERAMIC
CFF = 470pF
fSW = 600kHz
4642 G08
ISTEP = 2A/µs
2A/DIV
1.5VOUT
50mV/DIV
20µs/DIV
IN
OUT
COUT = 120µF 22m ESR OSCON SVP,
47µF CERAMIC
CFF = 470pF
fSW = 650kHz
4642 G09
ISTEP = 2A/µs
2A/DIV
1.5VOUT
50mV/DIV
20µs/DIV
IN
OUT



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