TPS542A52RJMR Texas Instruments Integrated Circuit (Other) In Stock

Name: TPS542A52RJMR
Brand: Texas Instruments
SKU: TPS542A52RJMR
Availability: InStock

TPS542A52RJMR is a 4 A synchronous step-down converter with 4 V to 18 V input range and voltage-mode PWM plus PFM control. It delivers regulated output with high efficiency across load conditions. Available from $2.50 with worldwide shipping and in stock.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

TPS542A52RJMROther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 37
Lifecycle: ACTIVE
Datasheet: TPS542A52RJMR Datasheet PDF
Category: Integrated Circuit
Price: From $4.1022(MOQ 25)
Temp Range: -40.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of TPS542A52RJMR?

4 A continuous output current with voltage-mode PWM and PFM control for high efficiency across the full load range
Wide 4 V to 18 V input voltage range supports 5 V, 12 V, and 15 V rail applications
Compact RJM package reduces PCB footprint for space-constrained power supply designs

What is TPS542A52RJMR used for?

TPS542A52RJMR is well suited for point-of-load DC-DC conversion in industrial equipment, telecom infrastructure, and server power supplies operating from 12 V rails. Its PFM mode improves efficiency at light loads, making it useful in always-on IoT gateways and embedded computing modules. The 4 V to 18 V input range also accommodates automotive-adjacent 12 V battery-backed systems.

What are the specifications of TPS542A52RJMR?

Pbfree Code	Yes
Date Of Intro	2020-10-01
YTEOL	15
Additional Feature	PFM CONROL ALSO POSSIBLE
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	18V
Input Voltage-Min	4V
Input Voltage-Nom	12V
JESD-30 Code	R-XBCC-N33
JESD-609 Code	e4
Number of Functions	1
Number of Outputs	1
Output Current-Max	15A
Output Voltage-Max	5.5V
Output Voltage-Min	0.5V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	LCC33(UNSPEC)
Package Shape	RECTANGULAR
Package Style	CHIP CARRIER
Peak Reflow Temperature (Cel)	260
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	2200kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	NO LEAD
Terminal Position	BOTTOM
Time@Peak Reflow Temperature-Max (s)	30
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 2
ECCN	EAR99
HTS Code	8542.39.00.90

Where can I find the TPS542A52RJMR datasheet?

TPS542A52RJMR Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for TPS542A52RJMR?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the maximum output current TPS542A52RJMR can supply continuously?

TPS542A52RJMR supports a continuous output current of 4 A. This rating is maintained across its 4 V to 18 V input voltage range, making it suitable for powering microcontrollers, FPGAs, and DDR memory rails that require stable current delivery under varying load conditions.

When should a designer choose PFM mode over PWM mode on TPS542A52RJMR?

PFM mode on TPS542A52RJMR is advantageous at light loads below approximately 10% of the 4 A rated current, where switching losses in fixed-frequency PWM would reduce efficiency. Switching frequency drops dynamically, lowering quiescent losses in standby or sleep states of IoT edge devices operating from a 12 V source.

Which input voltage rails are compatible with TPS542A52RJMR in industrial designs?

TPS542A52RJMR accepts input voltages from 4 V to 18 V, covering standard 5 V, 12 V, and 15 V industrial rails. This range accommodates 24 V bus applications when preceded by a pre-regulator, and supports 12 V nominal operation found in factory automation controllers and embedded industrial PCs.

How does TPS542A52RJMR compare to a 3 A buck converter for a 12 V-to-3.3 V conversion stage?

TPS542A52RJMR provides 4 A versus a 3 A alternative, giving 33% more headroom for transient load spikes on a 3.3 V rail without triggering over-current protection. The voltage-mode PWM control also offers tighter output regulation, which is critical for sensitive analog circuits and DSP cores requiring ±2% voltage accuracy.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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AvailabilityIn Stock

Reference Price (USD)

From $4.1022

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
25+	$5.1428	$128.57
100+	$4.6890	$468.90
250+	$4.5487	$1137.17
500+	$4.2400	$2120.00
1000+	$4.1900	$4190.00
3000+	$4.1021	$12306.45

pcs

Unit price: $5.1428 · Total: $128.57

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”

James Wright

Supply Chain Director, CircuitPro Ltd, UK

TPS542A52RJMR Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of TPS542A52RJMR?

What is TPS542A52RJMR used for?

What are the specifications of TPS542A52RJMR?

Compliance & Regulatory

Where can I find the TPS542A52RJMR datasheet?

What are equivalent replacements for TPS542A52RJMR?

Frequently Asked Questions

What is the maximum output current TPS542A52RJMR can supply continuously?

When should a designer choose PFM mode over PWM mode on TPS542A52RJMR?

Which input voltage rails are compatible with TPS542A52RJMR in industrial designs?

How does TPS542A52RJMR compare to a 3 A buck converter for a 12 V-to-3.3 V conversion stage?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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