LTM4604 Ver la hoja de datos (PDF) - Linear Technology

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LTM4604

Low Voltage, 4A DC/DC µModule™ with Tracking

Linear Technology 

LTM4604

TYPICAL PERFORMANCE CHARACTERISTICS

Efficiency vs Output Current

VIN = 2.5V

100

95

Efficiency vs Output Current

VIN = 3.3V

100

95

90

90

85

80

75

VOUT = 1.8V

70

VOUT = 1.5V

VOUT = 1.2V

VOUT = 0.8V

65

0

1

2

3

4

OUTPUT CURRENT (A)

"$" /

85

80

75

VOUT = 2.5V

VOUT = 1.8V

70

VOUT = 1.5V

VOUT = 1.2V

VOUT = 0.8V

65

0

1

2

3

4

OUTPUT CURRENT (A)

"$" /

Minimum Input Voltage

at 4A Load

3.5

VOUT = 3.3V

3.0

VOUT = 2.5V

VOUT = 1.8V

VOUT = 1.5V

2.5

VOUT = 1.2V

VOUT = 0.8V

2.0

1.5

Load Transient Response

ILOAD

2A/DIV

VOUT

20mV/DIV

1.0

0.5

0

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

VIN (V)

4604 G04

VIN = 5V

20μs/DIV

VOUT = 1.2V

COUT = 4 × 22μF, 6.3V CERAMICS

4604 G05

Load Transient Response

Load Transient Response

Efficiency vs Output Current

VIN = 5V

95

90

85

80

75

70

65

0

VOUT = 3.3V

VOUT = 2.5V

VOUT = 1.8V

VOUT = 1.5V

VOUT = 1.2V

VOUT = 0.8V

1

2

3

OUTPUT CURRENT (A)

4

"$" /!

Load Transient Response

ILOAD

2A/DIV

VOUT

20mV/DIV

VIN = 5V

20μs/DIV

VOUT = 1.5V

COUT = 4 × 22μF, 6.3V CERAMICS

4604 G06

Load Transient Response

ILOAD

2A/DIV

VOUT

20mV/DIV

ILOAD

2A/DIV

VOUT

20mV/DIV

ILOAD

2A/DIV

VOUT

20mV/DIV

VIN = 5V

20μs/DIV

VOUT = 1.8V

COUT = 3 × 22μF, 6.3V CERAMICS

4604 G07

VIN = 5V

20ms/DIV

VOUT = 2.5V

COUT = 3 ´ 22mF, 6.3V CERAMICS

4604 G08

VIN = 5V

20μs/DIV

VOUT = 3.3V

COUT = 2 × 22μF, 6.3V CERAMICS

4604 G09

4604f

4

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