ADPL20502 datasheet(7/27 Pages) AD

7 / 27 page

Data Sheet

ADPL20502

analog.com

Rev 0

7 of 27

Pin Descriptions

Table 3. Pin Descriptions

NAME

DESCRIPTION

WLP

TDFN

1, 2

OUT

Output Pins. Connect a 22μF X7R ceramic capacitor to ground.

Switching Node. Connect a 1.0μH inductor from LX to IN.

GND

Power Ground Pin. Connect to GND. In the TDFN package, applications

connect to the exposed pad (EP) externally in the PCB layout at a single

point.

—

AGND

Analog Ground Pin. Connect to the EP externally in the PCB layout at a

single point.

RSEL

Output Voltage Select Pin. Connect a resistor from RSEL to GND based on

the desired output voltage. See Table 4. RSEL floats in shutdown. Care

must be taken that the total capacitance on this pin should be less than

2pF. See PCB Layout Guidelines for more information.

Input Pin. Connect a 22μF X7R ceramic capacitor to ground. Depending

on the specific application requirements, more capacitance may be

needed.

Enable Input Pin. Force this pin to larger than 0.6V to enable the boost

converter. Force this pin below 0.55V to disable the part and enter the

True Shutdown mode.

—

Exposed Pad. Connect the EP to GND. Functionally connected to AGND.

Connect the GND and AGND pins to EP externally in the PCB layout with

short traces under the device.

ADPL20502 Datasheet(PDF) 7 Page - Analog Devices