LP3891ESX-1.5 datasheet(6/19 Pages) TI1

Part #	LP3891ESX-1.5

Description	LP3891 0.8A Fast-Response Ultra Low Dropout Linear Regulators

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LP3891

SNVS235D – SEPTEMBER 2003 – REVISED APRIL 2013

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Unless otherwise specified: TJ = 25°C, COUT = 10 µF, Cin = 10µF, S/D pin is tied to VBIAS, VIN = 2.2V, VOUT = 1.8V

IGND vs VSD

Noise Measurement

Figure 10.

Figure 11.

VOUTStartup Waveform

Line Regulation vs VBIAS

Figure 12.

Figure 13.

Line Regulation vs VBIAS

VIN PSRR

Figure 14.

Figure 15.

6

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