TPS717 datasheet(18/42 Pages) TI

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TPS717

SBVS068H – FEBRUARY 2006 – REVISED JANUARY 2015

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8.3 Do's and Don'ts

Do place at least one 1-µF ceramic capacitor as close as possible in the range of the regulator.

Do not place the output capacitor more than 10 mm away from the regulator.

Do not place any components in the feedback loop except for the output capacitor and feedback resistors.

Do not exceed the device absolute maximum ratings.

Do not float the enable (EN) pin.

9 Power Supply Recommendations

The TPS717xx is designed to operate from an input voltage between 2.5 V and 6.5 V. The input supply must

provide adequate headroom for the device to operate in a normal mode of operation.

Connect a low output impedance power supply directly to the IN pin of the TPS717xx. Inductive impedances

between the input supply and the IN pin can create significant voltage excursions at the IN pin during startup or

load transient events. If inductive impedances are unavoidable, use an input capacitor. To increase the overall

PSRR of the power solution, use a pi-filter before the input of the LDO or after the FB network of the LDO.

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TPS717 Datasheet(PDF) 18 Page - Texas Instruments