GRM188R61E105KA12D Просмотр технического описания (PDF) - International Rectifier

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GRM188R61E105KA12D

9A Highly Integrated SupIRBuck™ Single‐Input Voltage, Synchronous Buck Regulator

International Rectifier 

9A Highly Integrated SupIRBuckTM

Single‐Input V-o1lt1a-ge, Synchronous Buck Regulator

PD‐97661

IR3899

TYPICAL EFFICIENCY AND POWER LOSS CURVES

PVin = 12V, Vcc = External 5V, Io = 0A‐9A, Fs = 600KHz, Room Temperature, No Air Flow. Note that the efficiency and power

loss curves include the losses of IR3899, the inductor losses and the losses of the input and output capacitors.

The table below shows the inductors used for each of the output voltages in the efficiency measurement.

VOUT (V)

1.0

1.2

1.8

3.3

5

LOUT (µH)

0.51

0.51

0.68

1.2

1.2

P/N

59PR9876N (Vitec)

59PR9876N (Vitec)

ETQP4LR68XFC (Panasonic)

MPL105‐1R2 (Delta)

MPL105‐1R2 (Delta)

DCR (mΩ)

0.29

0.29

1.58

2.9

2.9

97

95

93

91

89

87

85

83

81

0.9

1.8

2.7

3.6

4.5

5.4

6.3

7.2

8.1

9

Load Current (A)

1.0V 1.2V 1.8V 3.3V 5.0V

2.9

2.5

2.1

1.7

1.3

0.9

0.5

0.1

0.9

1.8

2.7

3.6

4.5

5.4

6.3

7.2

8.1

9

Load Current (A)

1.0V 1.2V 1.8V 3.3V 5.0V

11 JANUARY 18, 2013 |DATA SHEET | 3.6

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