XTPS562211DRLR datasheet(3/34 Pages) TI

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5 Pin Configuration and Functions

PG/SS

VIN

GND

BOOT

MODE

8-Pin SOT583 DRL Package (Top View)

Pin Functions

I/O(1)

DESCRIPTION

NAME

NO.

PG/SS

I/O

This pin can be selected as Power-Good function or Soft-Start function, depending on

device MODE pin configuration.

•

If the Power-Good function is selected, this is an open-drain power-good indicator.

•

If the Soft-Start function is selected, an external capacitor connected from this pin to

GND defines the rise time for the internal reference voltage.

VIN

Input voltage supply pin for the control circuitry. Connect the input decoupling capacitors

between VIN and GND.

Switch node terminal. Connect the output inductor to this pin.

GND

GND terminal for the controller circuit and the internal circuitry.

BOOT

Supply input for the High-side MOSFET gate drive circuit. Connect a 0.1-µF capacitor

between BOOT and SW pins.

I/O

Enable input control. Driving EN high or leaving this pin floating enables the converter. An

external resistor divider can be used to imply an adjustable VIN UVLO function.

MODE

I/O

Device operation mode in light load (Eco-mode operation or FCCM operation) and Pin 1

function (Power-Good pin or Soft-Start pin) selection pin. Connect a resistor from MODE to

GND to configure the device according to Table 7-1.

Converter feedback input. Connect to output voltage with feedback resistor divider.

(1)

I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.

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TPS562211

SLUSDX0 – SEPTEMBER 2020

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