Texas Instruments LMR51610-Q1 Bedienungsanleitung

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LMR516xx-Q1 4V to 65V, 0.6A / 1A, Automotive, Synchronous Buck Converter

1 Features

•AEC-Q100 qualified

–Temperature grade 1: –40°C to 125°C ambient

operating temperature range

•Functional Safety-Capable

–Documentation available to aid functional safety

system design

•Configured for rugged industrial applications

–4V to 65V input voltage range

–Input transient protection up to 70V

–0.6A / 1A continuous output current

–80ns minimum switching on time

–Fixed 400kHz switching frequency

––40°C to 150°C junction temperature range

–96% maximum duty cycle

–Monotonic start-up with prebiased output

–Short-circuit protection with hiccup mode

–Precision enable

•Small design size and ease of use

–Integrated synchronous rectification

–Internal compensation for ease of use

•Various options in pin-to-pin compatible package

–PFM and forced PWM (FPWM) options

•Pin-to-pin compatible with the LMR16006Y-Q1,

LM2842-Q1, LMR50410-Q1, and TPS560430-Q1

•Create a custom design using the LMR516xx-Q1

with the WEBENCH

®

Power Designer

2 Applications

•Body electronics and lighting

•Infotainment and cluster

•Advanced driver assistance systems (ADAS)

3 Description

The LMR516xx-Q1 is a wide-V

IN

, easy-to-use,

synchronous buck converter capable of driving up to

0.6A and 1A load current. With a wide input range of

4V to 65V, the device is designed for a wide range of

industrial applications for power conditioning from an

unregulated source.

The LMR516xx-Q1 operates at 400kHz switching

frequency to support use of relatively small inductors

for an optimized design size. The LMR516xx-Q1

has a PFM version to realize high efficiency at

light load and a FPWM version to achieve constant

frequency and small output voltage ripple over the full

load range. Soft-start and compensation circuits are

implemented internally, which allow the device to be

used with minimal external components.

The device has built-in protection features, such as

cycle-by-cycle current limit, hiccup mode short-circuit

protection, and thermal shutdown in case of excessive

power dissipation.

Device Information

PART NUMBER

(3)

PACKAGE

(1)

PACKAGE SIZE

(2)

LMR51606-Q1

DBV (SOT-23, 6)2.90mm × 2.80mm

LMR51610-Q1

(1)For more information, see Section 11.

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

includes pins, where applicable.

(3)See the Device Comparison Table.

Simplified Schematic

Efficiency Versus Output Current

V

OUT

= 5V, 400kHz

LMR51606-Q1, LMR51610-Q1

SLUSFL7 – AUGUST 2024

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