Texas Instruments LV2862 Bedienungsanleitung

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LV2862 60-V, 600-mA, High-Efficiency, Wide Input Voltage Range Buck Converter

1 Features

•Input range from 4 V to 60 V with 65-V transients

•770-kHz (X version) or 2.1-MHz (Y version)

switching frequency

•Ultra-high efficiency for light load with Eco-mode

•Low dropout operation

•Output current up to 600 mA

•High-voltage precision enable input

•Overcurrent protection

•Overtemperature protection

•Internal compensation

•Internal soft start

•Small overall solution size (SOT-6L package)

2 Applications

•Grid infrastructure

•Appliances

•Motor drive

•General purpose wide V

IN

power supplies

3 Description

The LV2862 is a PWM DC/DC buck (step-down)

regulator. With a wide input range from 4 V to

60 V, the device is designed for a wide range of

applications, from industrial to automotive, for power

conditioning from unregulated source. An ultra-low

1-µA shutdown current can further prolong battery

life. Operating frequency is fixed at 770 kHz (X

version) and 2.1 MHz (Y version), allowing the use

of small external components while still being able

to have low output ripple voltage. Soft start and

compensation circuits are implemented internally,

which allows the device to be used with minimized

external components.

The LV2862 is optimized for up to 600-mA load

currents. The device has a 0.765-V nominal feedback

voltage.

The device has built-in protection features such as

pulse-by-pulse current limit, thermal sensing, and

shutdown due to excessive power dissipation. The

LV2862 is available in a low profile SOT-6L package.

Package Information

PART NUMBERPACKAGE

(1)

PACKAGE SIZE

(2)

LV2862DDC (SOT, 6)2.90 mm × 2.8 mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

LV2862

CB

SW

FB

Cboot

L1

D1

R1

R2

Cout

SHDN

VIN

Up to 60 V

Cin

VIN

GND

Simplified Schematic

Output Current (mA)

Efficiency (%)

1101001000

20

30

40

50

60

70

80

90

100

D001

Vin = 12 V

Efficiency versus Output Current

(f

sw

= 0.7 MHz, V

OUT

= 3.3 V)

LV2862

SNVSA49B – JANUARY 2015 – REVISED JUNE 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspezifikationen