IR3837MPBF データシートの表示（PDF） - International Rectifier

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IR3837MPBF

HIGHLY INTEGRATED 14A SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR

International Rectifier 

IR3837MPbF

Typical Efficiency and Power Loss Curves

Vin=12V, Vcc=5V (external), Io=1A-14A, Fs=600kHz, Room Temperature, No Air Flow

The table below shows the inductors used for each of the output voltages

in the efficiency measurement.

Vo [V]

1.0

1.2

1.5

1.8

2.5

3.3

5.0

L [µH]

0.4

0.51

0.51

0.51

0.68

1.0

1.0

MFR

P/N

DCR [mΩ]

Vitec 59PR9875N

0.29

Vitec 59PR9876N

0.29

Vitec 59PR9876N

0.29

Vitec 59PR9876N

0.29

Wurth Elek. 744 332 0068 0.72

Wurth Elek. 744 332 0100 1.17

Wurth Elek. 744 332 0100 1.17

97

95

93

91

89

87

85

83

81

79

77

75

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Load Current (A)

1.0V

1.2V

1.5V

1.8V

2.5V

3.3V

5.0V

4.7

4.2

3.7

3.2

2.7

2.2

1.7

1.2

0.7

0.2

1234

1.0V

1.2V

5 6 7 8 9 10

Load Current (A)

1.5V

1.8V

2.5V

11 12

3.3V

13 14

5.0V

Rev 1.31

8

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