LP5907 datasheet(13/50 Pages) TI2

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7 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

7.1 Application Information

The LP5907 is designed to meet the requirements of RF and analog circuits, by providing low noise, high

PSRR, low quiescent current, and low line or load transient response figures. The device offers excellent noise

performance without the need for a noise bypass capacitor and is stable with input and output capacitors with

a value of 1µF. The LP5907 delivers this performance in industry standard packages such as DSBGA, X2SON,

and SOT-23 which, for this device, are specified with an operating junction temperature (TJ) of –40°C to 125°C.

7.2 Typical Application

Figure 7-1 shows the typical application circuit for the LP5907. Input and output capacitances can be increased,

if needed, above the 1µF minimum for some applications.

OUT

GND

INPUT

ENABLE

GND

OUTPUT

LP5907

Figure 7-1. LP5907 Typical Application

7.2.1 Design Requirements

Table 7-1 summarizes the design requirements for Figure 7-1.

Table 7-1. Design Parameters

DESIGN PARAMETER

EXAMPLE VALUE

Input voltage range

2.2V to 5.5V

Output voltage

1.8V

Output current

200mA

Output capacitor range

0.7µF to 10µF

Input/output capacitor ESR range

5mΩ to 500mΩ

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LP5907

SNVS798Q – APRIL 2012 – REVISED JULY 2025

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