LM3263 datasheet(3/39 Pages) TI

3 / 39 page

LM3263

www.ti.com

SNVS837 – JUNE 2013

PIN DESCRIPTIONS

Pin #

Name

Description

PVIN

Power Supply Voltage Input to the internal PFET switch.

VIO functions as the RFFE interface reference voltage. VIO also functions as reset and enable

VIO

input to the LM3263. Typically connected to voltage regulator controlled by RF or Baseband

IC.

Digital control interface RFFE Bus clock input. Typically connected to RFFE master on RF or

SCLK

Baseband IC. SCLK must be held low when VIO is not applied.

Switching Node connection to the internal PFET switch and NFET synchronous rectifier.

Digital control interface RFFE Bus data input/output. Typically connected to RFFE master on

SDATA

RF or Baseband IC. SDATA must be held low when VIO is not applied.

GPO1

General Purpose Output. Also used to reconfigure USID.

PGND

Power Ground to the internal NFET switch.

BGND

ACB, Analog Bypass Ground and Digital Ground.

Feedback Analog Input. Connect to the output at the output filter capacitor.

SGND

Signal Analog Ground (Low Current).

ACB

ACB and Analog Bypass output. Connect to the output at the output filter capacitor.

PACB

ACB Power Supply Input.

SVDD

Analog Power Supply Voltage.

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