LTM4616MPV-PBF View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTM4616MPV-PBF

Dual 8A per Channel Low VIN DC/DC µModule Regulator

Linear Technology 

LTM4616

Typical Performance Characteristics Specified as Each Channel

Efficiency vs Load Current

100

CONTINUOUS MODE

95

Efficiency vs Load Current

100

CONTINUOUS MODE

95

Efficiency vs Load Current

100

CONTINUOUS MODE

95

90

90

90

85

85

85

80

75

70

0

5VIN 1.2VOUT

5VIN 1.5VOUT

5VIN 1.8VOUT

5VIN 2.5VOUT

5VIN 3.3VOUT

2

4

6

LOAD CURRENT

8

4616 G01

80

75

70

0

3.3VIN 1.2VOUT

3.3VIN 1.5VOUT

3.3VIN 1.8VOUT

3.3VIN 2.5VOUT

2

4

6

LOAD CURRENT

8

4616 G02

Burst Mode Efficiency with

5V Input

100

VIN to VOUT Step-Down Ratio

4.0

90

3.5

3.0

80

2.5

70

60

50

VOUT = 1.5V

VOUT = 2.5V

VOUT = 3.3V

40

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1

LOAD CURRENT (A)

4616 G04

2.0

1.5

1.0

0.5

0

2

IOUT = 8A

VOUT = 1.2V

VOUT = 1.5V

3

4

VIN (V)

VOUT = 1.8V

VOUT = 2.5V

VOUT = 3.3V

5

6

4616 G05

Supply Current vs VIN

1.6

Load Transient Response

1.4

1.2

1

0.8

0.6

0.4

0.2

0

2.5

VO = 1.2V PULSE-SKIPPING MODE

VO = 1.2V Burst Mode OPERATION

ILOAD

1A/DIV

0A

VOUT

50mV/DIV

3 3.5 4 4.5

INPUT VOLTAGE (V)

5 5.5

4616 G07

VIN = 5V

VOUT = 3.3V

2A/µs STEP

20µs/DIV

4616 G08

COUT = 2 × 100µF X5R, 470µF 4V POSCAP

80

75

2.7VIN 1.0VOUT

2.7VIN 1.5VOUT

2.7VIN 1.8VOUT

70

01 2 34 5 6 7

LOAD CURRENT (A)

4616 G03

VIN to VOUT Step-Down Ratio

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

2

IOUT = 6A

VOUT = 1.2V

VOUT = 1.5V

3

4

VIN (V)

VOUT = 1.8V

VOUT = 2.5V

VOUT = 3.3V

5

6

4616 G06

Load Transient Response

ILOAD

1A/DIV

0A

VOUT

50mV/DIV

VIN = 5V

VOUT = 2.5V

2A/µs STEP

20µs/DIV

4616 G09

COUT = 2 × 100µF X5R, 470µF 4V POSCAP

4616ff

For more information www.linear.com/LTM4616

5

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