LTM4642 datasheet(18/32 Pages) LINER

部件名	LTM4642

功能描述	20VIN, Dual 4A or Single 8A DC/DC 關Module Regulator

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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18 / 32 page

LTM4642

18

4642fb

For more information www.linear.com/LTM4642

applicaTions inForMaTion

Table 4. 1V Output

DERATING CURVE

VIN (V)

POWER LOSS CURVE

AIRFLOW (LFM)

HEAT SINK

ΘJA (°C/W)

Figures 11, 13

5, 12

Figures 8, 9

0

none

13

Figures 11, 13

5, 12

Figures 8, 9

200

none

10

Figures 11, 13

5, 12

Figures 8, 9

400

none

9

Figures 12, 14

5, 12

Figures 8, 9

0

BGA Heat Sink

13

Figures 12, 14

5, 12

Figures 8, 9

200

BGA Heat Sink

8

Figures 12, 14

5, 12

Figures 8, 9

400

BGA Heat Sink

7.5

Table 5. 5V Output

DERATING CURVE

VIN (V)

POWER LOSS CURVE

AIRFLOW (LFM)

HEAT SINK

ΘJA (°C/W)

Figures 21, 23

12, 20

Figures 9, 10

0

none

15

Figures 21, 23

12, 20

Figures 9, 10

200

none

13

Figures 21, 23

12, 20

Figures 9, 10

400

none

12

Figures 22, 24

12, 20

Figures 9, 10

0

BGA Heat Sink

14

Figures 22, 24

12, 20

Figures 9, 10

200

BGA Heat Sink

10

Figures 22, 24

12, 20

Figures 9, 10

400

BGA Heat Sink

10

HEAT SINK MANUFACTURER

PART NUMBER

WEBSITE

Cool Innovations

3-05040

www.coolinnovations.com

Chomerics

T411 Interface

www.chomerics.com

Table 6. Output Voltage Response vs Component Matrix (Refer to Figure 27) 0A to 2A Load Step Typical Measured Values

CERAMIC CAPACITOR

VENDORS

VALUE

PART NUMBER

BULK VENDORS

VALUE

PART NUMBER

ESR

Murata

COUT: 47µF 6.3V, X5R GRM21BR60J476ME15

Sanyo OSCON SVPC

COUT: 120µF 10V

10SVPC120MV

22mΩ

Murata

COUT: 47µF 10V, X5R

GRM31CR61A476KE15

Panasonic SP

COUT: 100µF 6.3V

EEFCTOJ101R

15mΩ

Murata

CIN: 22µF, X7R, 16V

GRM32ER71C226KEA8

VOUT (V)

CIN

(CERAMIC)

CIN

(BULK)**

COUT1

(CERAMIC)

COUT2 (CER

AND BULK)

CFF

(pF)

VIN (V)

DROOP

(mV)

PEAK TO

PEAK

RECOVERY

TIME (µs)

LOAD STEP

(A/µs)

RFB

(kΩ)

FREQ

(kHz)

1

22µF × 2

56µF

47µF

100µF or 120µF 470

3.3, 5, 12

31

62

20

2

90.9

650

1.2

22µF × 2

56µF

47µF

100µF or 120µF 470

3.3, 5, 12

30

63

20

2

60.4

650

1.5

22µF × 2

56µF

47µF

100µF or 120µF 470

3.3, 5, 12

35

70

20

2

40.2

700

1.8

22µF × 2

56µF

47µF

100µF or 120µF 470

3.3, 5, 12

38

80

25

2

30.1

750

2.5

22µF × 2

56µF

47µF

68

3.3, 5, 12

100

200

20

2

19.1

1000

3.3

22µF × 2

56µF

47µF

68

5, 12

120

240

20

2

13.3

1000

5

22µF × 2

56µF

47µF

68

185

390

20

2

8.25

1200

** Bulk capacitance is optional if VIN has very low input impedance.

类似零件编号 - LTM4642

制造商	部件名	数据表	功能描述
Linear Technology	LTM4642	533Kb / 34P	Dual 10A or Single 20A 關Module Regulator
Analog Devices	LTM4642	2Mb / 28P	Quad 40VIN Silent Switcher 關Module Regulator with Configurable 1.2A Output Array
Linear Technology	LTM4642IY	1Mb / 14P	20VIN, DUAL 4A or SINGLE 8A DC/DC 關MODULE REGULATOR

More results

类似说明 - LTM4642

制造商	部件名	数据表	功能描述
Linear Technology	LTM4642IY	1Mb / 14P	20VIN, DUAL 4A or SINGLE 8A DC/DC 關MODULE REGULATOR
Analog Devices	LTM4657	1Mb / 28P	20VIN, 8A Step-Down DC/DC 關Module Regulator
Linear Technology	LTM4628	704Kb / 36P	Dual 8A or Single 16A DC/DC 關Module Regulator
Linear Dimensions Semic...	LTM4628IVPBF	707Kb / 36P	Dual 8A or Single 16A DC/DC 關Module Regulator
Analog Devices	LTM4705	1Mb / 24P	20VIN, Dual 5A or Single 10A Step-Down DC/DC 關Module Regulator
Linear Technology	LTM4628	1Mb / 36P	Dual 8A or Single 16A DC/DC Module Regulator
	LTM4622A	863Kb / 30P	Dual Ultrathin 2A or Single 4A Step-Down DC/DC 關Module Regulator
	LTM4619	300Kb / 24P	Dual, 26VIN, 4A DC/DC 關Module Regulator
	LTM4625	1Mb / 26P	20VIN, 5A Step-Down DC/DC 關Module Regulator
	LTM4630A	1Mb / 38P	Dual 18A or Single 36A DC/DC 關Module Regulator