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LTM4609 Datasheet(PDF) 6 Page - Linear Technology

Part # LTM4609
Description  40A 關Module Regulator with Overvoltage/ Overtemperature Protection
PDF  38 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4609 Datasheet(HTML) 6 Page - Linear Technology

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LTM4636-1
6
46361fa
For more information www.linear.com/LTM4636-1
TYPICAL PERFORMANCE CHARACTERISTICS
2.5V Transient Response
1.5V Transient Response
1.8V Transient Response
12V TO 1.5V TRANSIENT RESPONSE
COUT = 4 × 100µF CERAMIC, 3 × 470µF 2.5V
POSCAP 5m
CFF = 22pF, SW FREQ = 425kHz
CCOMP = 100pF
10A/DIV
18A/µs
STEP
50mV/DIV
50µs/DIV
46361 G07
12V TO 1.8V TRANSIENT RESPONSE
COUT = 6 × 100µF CERAMIC, 2 × 470µF 4V
POSCAP 5m
CFF = 22pF, SW FREQ = 500kHz
CCOMP = 100pF
10A/DIV
18A/µs
STEP
50mV/DIV
100µs/DIV
46361 G08
12V TO 2.5V TRANSIENT RESPONSE
COUT = 6 × 100µF CERAMIC, 2 × 470µF 4V
POSCAP 5m
CFF = 22pF, SW FREQ = 650kHz
CCOMP = 100pF
10A/DIV
18A/µs
STEP
100mV/DIV
100µs/DIV
46361 G09
Burst Mode Efficiency
vs Load Current
1V Transient Response
1.2V Transient Response
Efficiency vs Load Current
with 5VIN
Efficiency vs Load Current with
8VIN
Efficiency vs Load Current with
12VIN
OUTPUT CURRENT (A)
0
100
90
80
95
85
75
70
25
15
35
46361 G01
40
20
10
5
30
3.3VOUT, 500kHz
2.5VOUT, 500kHz
1.8VOUT, 450kHz
1.5VOUT, 425kHz
1.2VOUT, 300kHz
1VOUT, 300kHz
OUTPUT CURRENT (A)
0
100
90
80
95
85
75
70
25
15
35
46361 G02
40
20
10
5
30
3.3VOUT, 700kHz
2.5VOUT, 600kHz
1.8VOUT, 500kHz
1.5VOUT, 450kHz
1.2VOUT, 400kHz
1VOUT, 350kHz
OUTPUT CURRENT (A)
0
100
90
80
95
85
75
70
25
15
35
46361 G03
40
20
10
5
30
3.3VOUT, 750kHz
2.5VOUT, 650kHz
1.8VOUT, 600kHz
1.5VOUT, 550kHz
1.2VOUT, 400kHz
1VOUT, 350kHz
OUTPUT CURRENT (A)
0
100
80
60
90
70
50
40
3
2
4
46361 G04
5
1
Burst Mode OPERATION
VIN 12V
VOUT 1.5V
12V TO 1V TRANSIENT RESPONSE
COUT = 4 × 100µF CERAMIC, 3 × 470µF 2.5V
POSCAP 5m
CFF = 22pF, SW FREQ = 400kHz
10A/DIV
18A/µs
STEP
50mV/DIV
50µs/DIV
46361 G05
12V TO 1.2V TRANSIENT RESPONSE
COUT = 4 × 100µF CERAMIC, 3 × 470µF 2.5V
POSCAP 5m
CFF = 22pF, SW FREQ = 400kHz
CCOMP = 100pF
10A/DIV
18A/µs
STEP
50mV/DIV
50µs/DIV
46361 G06



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