TPS62870 datasheet(53/66 Pages) TI2

53 / 66 page

9.2.3 Application Curves (continued)

All application curves are obtained with L = 110nH (Coilcraft XGL4020-111ME) and fsw = 2.25MHz, unless noted otherwise.

Figure 9-24. Current Limit (Hiccup)

9.3 Best Design Practices

TPS6287x

VIN

2.7 V to 6 V

TPS6287x

VIN

INCORRECT

CORRECT

2.7 V to 6 V

15 k

Ω

TPS6287x

VIN

2.7 V to 6 V

TPS6287x

VIN

INCORRECT

CORRECT

2.7 V to 6 V

15 k

ENABLE

9.4 Power Supply Recommendations

The TPS6287x family has no special requirements for the input power supply. The output current rating of the

input power supply must be rated according to the supply voltage and current requirements of the TPS6287x.

9.5 Layout

9.5.1 Layout Guidelines

Achieving the performance the TPS6287x devices are capable of requires proper PDN and PCB design. TI

therefore recommends the user perform a power integrity analysis on the design. There are a number of

commercially available power integrity software tools, and the user can use these tools to model the effects on

performance of the PCB layout and passive components.

In addition to the use of power integrity tools, TI recommends the following basic principles:

• Place the input capacitors close to the VIN and GND pins. Position the input capacitors in order of increasing

size, starting with the smallest capacitors closest to the VIN and GND pins. Use an identical layout for both

VIN-GND pin pairs of the package, to gain maximum benefit from the butterfly configuration.

www.ti.com

TPS62870, TPS62871, TPS62872, TPS62873

SLVSGC5E – JANUARY 2023 – REVISED OCTOBER 2025

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