LM20144

SNVS529G – OCTOBER 2007 – REVISED MARCH 2013

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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.

Error Amplifier Gain

vs.

Frequency

Line Regulation

Figure 7.

Figure 8.

Feedback Pin Voltage

vs.

Load Regulation

Temperature

Figure 9.

Figure 10.

Switching Frequency

Switching Frequency

vs.

vs.

Temperature

RT

Figure 11.

Figure 12.

6

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