8 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.

8.1 Application Information

The TLV709 LDO regulator is a good choice for battery-powered applications and is a good supply for low-power

microcontrollers, such as the MSP430, because of the device low IQ performance across load current range. The

ultra-low-supply current of the TLV709 maximizes efficiency at light loads and the high input voltage range and

flexibility of output voltage selection in adjustable configuration and fixed output levels makes the device optimal

as a supply in building automation and power tools.

8.2 Typical Application

IN

OUT

TLV70933

GND

V

IN

V

OUT

0.1μF

GND

0.47μF

Figure 8-1. Typical Application Circuit (Fixed-Voltage Version)

TLV70901

IN

OUT

FB

GND

0.1μF

VIN

GND

GND

CFB

GND

VOUT

0.47µF

Figure 8-2. TLV70901 Adjustable LDO Regulator Programming

NOTE: Dotted lines indicate an optional input capacitor. See the Recommended Operating Conditions table and the Input and Output

Capacitor Requirements section.

Table 8-1. Adjustable Output Voltage for Resistors R1 and R2

OUTPUT VOLTAGE (V)

R1 (MΩ)

R2 (MΩ)

1.8

0.499

1

2.8

1.33

1

5.0

3.16

1

8.2.1 Design Requirements

Table 8-2 summarizes the design requirements for Figure 8-1.

Table 8-2. Design Parameters

PARAMETER

DESIGN REQUIREMENT

Input voltage

12 V

Output voltage

3.3 V

Output current

100 mA

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TLV709

SLVSGU2A – FEBRUARY 2023 – REVISED MAY 2023

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