9 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.

9.1 Application Information

The TPS61376 is designed for output voltage up to 25 V with up to 3-A input average current limit. The

TPS61376 operates at a quasi-constant frequency pulse-width modulation (PWM) in moderate to heavy load

condition. In light load condition, the converter operates in PFM mode. The PFM mode brings high efficiency

over the entire load range. The converter uses the adaptive constant off-time peak current control scheme,

which provides excellent line and load transient response with minimal output capacitance. The TPS61376 can

work with different inductor and output capacitor combinations by adjusting external loop compensation.

9.2 Typical Application

EN/UVLO

OFF

ON

FB

SW

VIN

PGND

D1

60V 3A Schottky

R2

90.9K

R1

1.0M

VCC

BST

ILIM

TPS61376

COMP

ISEL

VOUT

VP

GND

AGND

RC

80.6K

CC

3.3nF

CBOOT

470nF

L 4.7 H

GND

RILIM

14.3K

CVCC

4.7 F

VIN

VOUT

COUT

67 F

CIN

22 F

LOW

HIGH

CP

NC

Figure 9-1. TPS61376 3.3-V to 8.4-V VIN ;12V VOUT 0.5-A Output Converter

9.2.1 Design Requirements

Table 9-1. Design Parameters

DESIGN PARAMETERS

EXAMPLE VALUES

Input voltage range

3.3 to 8.4 V

Output voltage

12 V

Output voltage ripple

100 mV peak to peak

Output current rating

0.5 A

TPS61376

SLVSGQ1A – JANUARY 2022 – REVISED SEPTEMBER 2022

www.ti.com

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