LM20146_15 datasheet(6/29 Pages) TI1

Teilenummer	LM20146

Bauteilbeschribung	Adjustable Frequency Synchronous Buck Regulator

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LM20146

SNVS563C – FEBRUARY 2008 – REVISED APRIL 2013

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Typical Performance Characteristics (continued)

Unless otherwise specified: CIN = COUT = 100µF, L = 1.0µH (TDK SPM6530T-1R0M120), VIN = 5V, VOUT = 1.2V, RLOAD =

1.2

Ω, fSW = 500 kHz, TA = 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.

Feedback Pin Voltage

vs.

Load Regulation

Temperature (TJ)

Figure 8.

Figure 9.

Switching Frequency

vs.

Temperature (TJ)

RT

Figure 10.

Figure 11.

Quiescent Current

Shutdown Current

vs.

VIN (Not Switching)

Temperature (TJ)

Figure 12.

Figure 13.

6

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