IR3895M datasheet(11/45 Pages) IRF

Part #	IR3895M

Description	Single?륤nput Voltage, Synchronous Buck Regulator

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Manufacturer	IRF [International Rectifier]

Direct Link	http://www.irf.com

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JANUARY 18, 2013 | DATA SHEET| Rev 3.4

11

IR3895

16A Highly Integrated SupIRBuck

Single‐Input Voltage, Synchronous Buck Regulator

PD‐97746

TYPICAL EFFICIENCY AND POWER LOSS CURVES

PVin = 12V, Vcc = External 5V, Io = 0A‐16A, Fs = 600kHz, Room Temperature, No Air Flow. Note that the efficiency and

power loss curves include the losses of IR3895, 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

0.4

59PR9875N (Vitec)

0.29

1.2

0.4

59PR9875N (Vitec)

0.29

1.8

0.47

7443330047(Wurth Elektronik)

0.8

3.3

0.88 MPC1040LR88C(NEC/Tokin)

2.3

5

1.0

7443330100(Wurth Elektronik)

1.35

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