LM5146QRGYRQ1 Texas Instruments Undefined or Miscellaneous (Other) In Stock

Name: LM5146QRGYRQ1
Brand: Texas Instruments
SKU: LM5146QRGYRQ1
Availability: InStock

The LM5146QRGYRQ1 is a 100-V synchronous buck DC/DC controller from Texas Instruments in a 20-pin VQFN package, supporting 5.5V to 100V input with voltage-mode PWM control for wide duty cycle range, rated -40°C to 150°C, ideal for industrial and automotive power supply applications.

ACTIVEUndefined or MiscellaneousVerified Jul 2026

Package / Visual Reference

LM5146QRGYRQ1Other

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 21
Lifecycle: ACTIVE
Datasheet: LM5146QRGYRQ1 Datasheet PDF
Category: Undefined or Miscellaneous
Price: From $1.5694(MOQ 1)
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 LM5146QRGYRQ1?

100-V maximum input voltage, 5.5 V minimum
Voltage-mode PWM control architecture
Wide duty cycle range for buck conversion
20-pin VQFN (R-PQCC-N20) package
Operating temperature -40°C to 150°C
Synchronous buck DC/DC controller topology

What is LM5146QRGYRQ1 used for?

The LM5146QRGYRQ1 is well suited for industrial power supplies, telecom infrastructure, and automotive systems that require a wide 5.5V to 100V input range. Its synchronous buck topology with voltage-mode PWM control delivers efficient step-down conversion in high-voltage rail applications such as 48V bus conversion and battery-powered equipment. The extended -40°C to 150°C operating range supports harsh-environment automotive and industrial deployments.

What are the specifications of LM5146QRGYRQ1?

Pbfree Code	Yes
Date Of Intro	2018-12-13
YTEOL	15
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	100V
Input Voltage-Min	5.5V
Input Voltage-Nom	48V
JESD-30 Code	R-PQCC-N20
JESD-609 Code	e3
Number of Functions	1
Number of Outputs	1
Output Current-Max	20A
Output Voltage-Max	60V
Output Voltage-Min	0.8V
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	CHIP CARRIER, HEAT SINK/SLUG
Peak Reflow Temperature (Cel)	260
Screening Level	AEC-Q100
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	1000kHz
Technology	BICMOS
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Position	QUAD
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
Country of Origin	Mainland China, Thailand

Where can I find the LM5146QRGYRQ1 datasheet?

LM5146QRGYRQ1 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for LM5146QRGYRQ1?

Compatible alternatives and drop-in replacements for LM5146QRGYRQ1:

LM5146QRGYTQ1Texas Instruments

Switching Controller, Voltage-mode, 20A, 1000kHz Switching Freq-Max, BICMOS, PQCC20

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

How wide is the input voltage range of the LM5146QRGYRQ1?

The LM5146QRGYRQ1 accepts an input voltage range from 5.5 V to 100 V, making it suitable for high-voltage synchronous buck conversion in industrial and automotive 48 V bus systems.

Can the LM5146QRGYRQ1 operate reliably in automotive-grade thermal environments?

Yes, the LM5146QRGYRQ1 is rated for a junction operating temperature range of -40°C to 150°C in a 20-pin VQFN package, supporting automotive and industrial designs that demand wide thermal margin.

What types of power systems benefit most from this controller?

Designers building 48 V telecom, industrial control, and automotive battery systems benefit from the LM5146QRGYRQ1's 100 V maximum input rating and voltage-mode PWM control, which support wide duty cycle synchronous buck conversion in a compact 20-pin VQFN footprint.

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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 $1.5694

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$2.8180	$2.82
100+	$2.2150	$221.50
118+	$1.6970	$200.25
154+	$1.6332	$251.51
192+	$1.5694	$301.32

pcs

Unit price: $2.8180 · Total: $2.82

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

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LM5146QRGYRQ1 Texas Instruments Undefined or Miscellaneous (Other) In Stock

What are the key features of LM5146QRGYRQ1?

What is LM5146QRGYRQ1 used for?

What are the specifications of LM5146QRGYRQ1?

Compliance & Regulatory

Where can I find the LM5146QRGYRQ1 datasheet?

What are equivalent replacements for LM5146QRGYRQ1?

Frequently Asked Questions

How wide is the input voltage range of the LM5146QRGYRQ1?

Can the LM5146QRGYRQ1 operate reliably in automotive-grade thermal environments?

What types of power systems benefit most from this controller?

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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