Texas Instruments LM20144MH/NOPB

Mfr. Part

LM20144MH/NOPB

Manufacturer

Luminary Micro Texas Instruments

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Detailed Description

Monolithic synchronous buck DC DC regulator delivering up to 4 A

Adjustable output from 0.8 V to 4.68 V

Wide switching frequency range 500 kHz to 1.5 MHz for size and efficiency trade-offs

Operates from a 2.95 V to 5.5 V input, ideal for 3.3 V and 5 V rails

One positive output, step-down topology, synchronous rectification for high efficiency

PowerWise series device in a 16 PowerTSSOP package with exposed thermal pad

Surface-mount, RoHS3 compliant, supplied in tube

Operating junction temperature range minus 40 C to 125 C

Current stock quantity 2070

Key Features

4 A continuous output current

Adjustable output voltage 0.8 V to 4.68 V

Input voltage 2.95 V to 5.5 V tailored for low voltage point of load

Synchronous rectifier integrated high side and low side MOSFETs

Programmable switching frequency 500 kHz to 1.5 MHz

Soft start and tracking pin for controlled startup

Power good output for system monitoring

Enable pin for simple on off control

External compensation via COMP pin for loop optimization

Thermal shutdown and current limit protection

Stable operation over wide duty cycle

PowerPAD exposed pad for efficient heat removal

Key Advantages

High efficiency from synchronous operation reduces heat and power loss

Compact solution size thanks to high frequency and integrated MOSFETs

Flexible design with adjustable voltage and frequency

Fast transient response with tunable compensation

Robust reliability with thermal shutdown and cycle by cycle current limit

Simple power sequencing with soft start tracking and power good

Ideal for 3.3 V and 5 V input systems common in servers, industrial, and communication equipment

Packaging

Type tube for safe handling and storage

Package 16 HTSSOP also called 16 PowerTSSOP with exposed thermal pad

Material molded epoxy plastic body with copper leadframe and lead free finish RoHS3 compliant

Size body width 4.40 mm 0.173 inch typical compact TSSOP footprint

Pin configuration 16 leads plus exposed thermal pad typical pins include VIN SW BOOT VCC EN PG SS TRK COMP FB AGND PGND check datasheet for exact mapping

Thermal characteristics exposed PowerPAD improves heat spreading and lowers thermal resistance use solid ground plane and thermal vias under the pad for best results

Electrical properties integrated synchronous buck power stage single output positive adjustable VOUT 4 A continuous current 500 kHz to 1.5 MHz switching

Lifecycle

Status active based on latest public information not near discontinuation

Family equivalents and close alternatives from Texas Instruments

LM20133MH NOPB 3 A synchronous buck similar architecture and package

LM20136MH NOPB 6 A synchronous buck same family higher current

LM20143MH NOPB 3 A synchronous buck same family variant

TPS54318 3 A synchronous buck broader input range different family

TPS54620 6 A synchronous buck higher input range different family

Cross vendor alternatives for similar use cases verify specs and pinouts before substitution

Analog Devices LTC3605A 5 A synchronous buck 4 V to 20 V input compact QFN

Analog Devices ADP2384 4 A synchronous buck 4.5 V to 20 V input small footprint

Monolithic Power Systems MP2307DN 3 A synchronous buck 4.75 V to 23 V input low cost

Monolithic Power Systems MP1584 3 A synchronous buck 4.5 V to 28 V input compact

If you need exact pin compatible or a drop in alternative contact our sales team via the Y-IC website for detailed guidance and the latest replacement options

Key Application Areas

Point of load regulation for FPGAs ASICs DSPs and high performance MCUs

Servers storage and networking equipment using 3.3 V or 5 V distribution rails

Industrial control robotics PLCs and factory automation

Test and measurement instruments and telecom access equipment

Embedded systems set top boxes consumer and prosumer electronics

Automotive infotainment and body electronics within specified thermal limits

Datasheet

Y-IC hosts the most authoritative datasheet for LM20144MH NOPB on our product page

Download the datasheet now for pinout details reference designs layout tips and performance curves

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