LM2840 datasheet(2/20 Pages) TI

номер детали	LM2840

подробное описание детали	Input Step-Down DC/DC Regulator in Thin SOT

PDF	20 Pages

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производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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2 / 20 page

LM2840/1/2

GND

PIN 1 ID

VIN

SHDN

LM2841, LM2842

SNVS540H – MARCH 2009 – REVISED APRIL 2013

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Connection Diagram

Top View

Figure 1. SOT 6 Lead

See Package Number DDC (R-PDSO-G6)

PIN DESCRIPTIONS

Name

Function

SW FET gate bias voltage. Connect CBOOT cap between CB and SW.

GND

Ground connection.

Feedback pin: Set feedback voltage divider ratio with VOUT = VFB (1+(R1/R2)). Resistors should be

in the 100-10K range to avoid input bias errors.

SHDN

Logic level shutdown input. Pull to GND to disable the device and pull high to enable the device. If

this function is not used tie to VIN or leave open.

VIN

Power input voltage pin: 4.5V to 42V normal operating range.

Power FET output: Connect to inductor, diode, and CBOOT cap.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

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LM2840 датащи(PDF) 2 Page - Texas Instruments