LM20144

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SNVS529G – OCTOBER 2007 – REVISED MARCH 2013

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Unless otherwise specified: CIN = COUT = 100 µF, L = 1.0 µH (Coilcraft MSS1038), VIN = 5V, VOUT = 1.2V, RLOAD = 1.2Ω,

fSW = 1 MHz, TA = 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.

Quiescent Current

Shutdown Current

vs.

vs.

VIN (Not Switching)

Temperature

Figure 13.

Figure 14.

Enable Threshold

UVLO Threshold

vs.

vs.

Temperature

Temperature

Figure 15.

Figure 16.

Peak Current Limit

Peak Current Limit

vs.

vs.

Temperature

VOUT

Figure 17.

Figure 18.

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