Integrated Circuits (ICs)

LM46001PWPR

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CONV DC-DC 3.5V TO 60V SYNCHRONOUS STEP DOWN SINGLE-OUT 1V TO 28V 1A 16-PIN HTSSOP EP T/R

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Search across all available documentation for this part.

DocumentsUnderstanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)+28

Integrated Circuits (ICs)

LM46001PWPR

Active

Texas Instruments

CONV DC-DC 3.5V TO 60V SYNCHRONOUS STEP DOWN SINGLE-OUT 1V TO 28V 1A 16-PIN HTSSOP EP T/R

Deep-Dive with AI

DocumentsUnderstanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)+28

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM46001PWPR

Current - Output	1 A
Frequency - Switching [Max]	2.2 MHz
Frequency - Switching [Min]	200 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-PowerTSSOP
Package / Case	0.173 in, 4.4 mm Width
Supplier Device Package	16-HTSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	60 V
Voltage - Input (Min) [Min]	3.5 V
Voltage - Output (Max)	28 V
Voltage - Output (Min/Fixed)	1 V

LM46001-Q1 Series

Automotive Qualified 3.5 to 60V, 1A Synchronous Step-Down Voltage Converter

Part	Operating Temperature [Min]	Operating Temperature [Max]	Output Type	Grade	Voltage - Output (Max)	Number of Outputs	Current - Output	Package / Case	Package / Case	Qualification	Topology	Output Configuration	Voltage - Input (Min) [Min]	Supplier Device Package	Voltage - Output (Min/Fixed)	Function	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Input (Max) [Max]	Mounting Type	Outputs and Type	Outputs and Type	Supplied Contents	Utilized IC / Part	Board Type	Regulator Topology	Main Purpose	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Frequency - Switching
Texas Instruments LM46001AQPWPTQ1	-40 °C	125 ¯C	Adjustable	Automotive	28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width	AEC-Q100	Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPEVM							1 A														Non-Isolated	1	Board(s)	LM46001	Fully Populated	Buck	DC/DC Step Down	3.3 V	60 V	3.5 V	500 kHz
Texas Instruments LM46001AQPWPRQ1	-40 °C	125 ¯C	Adjustable	Automotive	28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width	AEC-Q100	Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPR	-40 °C	125 ¯C	Adjustable		28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width		Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPT	-40 °C	125 ¯C	Adjustable		28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width		Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 5.84
		10	$ 3.93
		25	$ 3.43
		100	$ 2.88
		250	$ 2.61
		500	$ 2.44
		1000	$ 2.31
	Digi-Reel®	1	$ 5.84
		10	$ 3.93
		25	$ 3.43
		100	$ 2.88
		250	$ 2.61
		500	$ 2.44
		1000	$ 2.31
	Tape & Reel (TR)	2000	$ 2.19
		4000	$ 2.12
Texas Instruments	LARGE T&R	1	$ 3.42
		100	$ 3.00
		250	$ 2.10
		1000	$ 1.69

Description

General part information

LM46001-Q1 Series

The LM46001-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCCundervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001-Q1 device is available in the 16-pin HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM4360x and LM4600x families. The LM46001A-Q1 version is optimized for PFM operation and recommended for new designs.

Documents

Technical documentation and resources

LM46001PWPR

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LM46001PWPR

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Technical Specifications

LM46001-Q1 Series

Pricing

Description

LM46001-Q1 Series

Documents

Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)

SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)

AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)

AN-643 EMI/RFI Board Design (Rev. B)

Semiconductor and IC Package Thermal Metrics (Rev. D)

Input and Output Capacitor Selection

AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)

AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)

AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)

Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)

AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)

Synchronous Rectification in High-Performance Power Converter Design (Rev. A)

Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B)

Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A)

Cap Drop Offline Supply for E-Meters

AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)

LM46001 3.5-V to 60-V, 1-A Synchronous Step-Down Voltage Converter datasheet (Rev. B)

Inverting made simple by unleashing the buck

Understanding and Applying Current-Mode Control Theory

AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)

Thermal Design Made Simple With LM43603 and LM46002

LM46001EVM User's Guide

Differences Between LM4600x/LM4360x A and Non-A OPNs

AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)

AN-1197 Selecting Inductors for Buck Converters (Rev. B)

AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)

Buck Converter Quick Reference Guide (Rev. B)

AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)

Compensation Made SIMPLE With LM4360x, LM4600x

Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)

LM46001-Q1 Series