PCMB065T-R68MS datasheet(10/46 Pages) IRF

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JANURARY 18, 2013 | DATA SHEET | Rev 3.5

IR3898

6A Highly Integrated SupIRBuck

Single-Input Voltage, Synchronous Buck Regulator

PD-97662

0.6

1.2

1.8

2.4

3.6

4.2

4.8

5.4

Load Current (A)

1.0V

1.2V

1.8V

3.3V

5.0V

0.1

0.3

0.5

0.7

0.9

1.1

1.3

1.5

0.6

1.2

1.8

2.4

3.6

4.2

4.8

5.4

Load Current (A)

1.0V

1.2V

1.8V

3.3V

5.0V

TYPICAL EFFICIENCY AND POWER LOSS CURVES

PVin = 12V, Vcc = Internal LDO (4.4V/6.4V), Io = 0A-6A, Fs = 600 kHz, Room Temperature, No Air Flow. Note that the

efficiency and power loss curves include the losses of IR3898, 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)

LOUT (µH)

P/N

DCR (mΩ)

1.0

0.82

SPM6550T-R82M (TDK)

4.2

1.2

1.0

SPM6550T-1R0M (TDK)

4.7

1.8

1.0

SPM6550T-1R0M (TDK)

4.7

3.3

2.2

7443340220(Wurth Elektronik)

4.4

2.2

7443340220(Wurth Elektronik)

4.4

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