Texas Instruments LMR33620AP-Q1 Handleiding

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LMR336x0AP-Q1 3.8-V to 36-V, 2-A and 3-A Synchronous Step-Down Voltage

Converter

1 Features

•AEC-Q100 qualified for automotive applications:

–Temperature grade 1: –40°C to +125°C, T

A

•Functional Safety-Capable

–Documentation available to aid functional safety

system design

•Configured for rugged automotive applications

–Input voltage range: 3.8 V to 36 V

–Output voltage range: 1 V to 24 V

–Output current: 2 A, 3 A

–75-mΩ/50-mΩ R

DS-ON

power MOSFETs

–Peak-current-mode control

–Short minimum on time of 68 ns

–Frequency: 400 kHz, 2.1 MHz

–Integrated compensation network

•Low EMI and switching noise

–HotRod

™

package

–Parallel input current paths

•High power conversion at all loads

–Peak efficiency > 95%

–Low shutdown quiescent current of 5 µA

–Low operating quiescent current of 25 µA

•Create a custom design using the LMR336x0AP-

Q1 with the WEBENCH

®

Power Designer

2 Applications

•Infotainment and cluster

•Telematics control unit

3 Description

The LMR336x0AP-Q1 automotive-qualified regulator

is an easy-to-use, synchronous, step-down DC/DC

converter that delivers best-in-class efficiency for

rugged applications. The LMR336x0AP-Q1 drives up

to 2 A or 3 A of load current from an input of up

to 36 V. The LMR336x0AP-Q1 provides high light

load efficiency and output accuracy in a very small

solution size. Features such as a power-good flag

and precision enable provide both flexible and easy-

to-use solutions for a wide range of applications. The

LMR336x0AP-Q1 automatically folds back frequency

at light load to improve efficiency. Integration

eliminates most external components and provides

a pinout designed for simple PCB layout. Protection

features include thermal shutdown, input undervoltage

lockout, cycle-by-cycle current limit, and hiccup short-

circuit protection. The LMR336x0AP-Q1 is available

in a 12-pin 3-mm × 2-mm next generation VQFN

package with wettable flanks.

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LMR33620AP-Q1

VQFN (12)3.00 mm × 2.00 mm

LMR33630AP-Q1

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

the end of the data sheet.

V

IN

VIN

EN

BOOT

SW

FB

AGND

V

OUT

C

BOOT

L1

C

IN

C

OUT

R

FBT

R

FBB

VCC

PG

PGND

C

VCC

Simplified Schematic

Minimum Component Example

LMR33620AP-Q1, LMR33630AP-Q1

SNVSBQ5 – JUNE 2021

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.

Product specificaties