LM46000PWPR

Technical Specifications

Parameters and characteristics for this part

Specification	LM46000PWPR

Current - Output	500 mA
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

LM46000-Q1 Series

AEC-Q100 Qualified 3.5 to 60V 0.5A Synchronous Step-Down Voltage Converter

Part	Qualification	Voltage - Output (Max)	Supplier Device Package	Number of Outputs	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Package / Case	Package / Case	Current - Output	Frequency - Switching [Max]	Frequency - Switching [Min]	Topology	Function	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Voltage - Output (Min/Fixed)	Mounting Type	Grade	Output Type	Outputs and Type	Outputs and Type	Frequency - Switching	Regulator Topology	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Board Type	Utilized IC / Part	Main Purpose	Supplied Contents
Texas Instruments LM46000AQPWPTQ1	AEC-Q100	28 V	16-HTSSOP	1	3.5 V	60 V	16-PowerTSSOP	0.173 in 4.4 mm Width	500 mA	2.2 MHz	200 kHz	Buck	Step-Down	-40 °C	125 ¯C	Positive	1 V	Surface Mount	Automotive	Adjustable
Texas Instruments LM46000PWPR		28 V	16-HTSSOP	1	3.5 V	60 V	16-PowerTSSOP	0.173 in 4.4 mm Width	500 mA	2.2 MHz	200 kHz	Buck	Step-Down	-40 °C	125 ¯C	Positive	1 V	Surface Mount		Adjustable
Texas Instruments LM46000PWPEVM									500 mA												Non-Isolated	1	500 kHz	Buck	60 V	3.5 V	3.3 V	Fully Populated	LM46000	DC/DC Step Down	Board(s)

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	$ 4.27
		10	$ 3.84
		25	$ 3.63
		100	$ 3.15
		250	$ 2.98
		500	$ 2.68
		1000	$ 2.26
	Digi-Reel®	1	$ 4.27
		10	$ 3.84
		25	$ 3.63
		100	$ 3.15
		250	$ 2.98
		500	$ 2.68
		1000	$ 2.26
	Tape & Reel (TR)	2000	$ 2.15
Texas Instruments	LARGE T&R	1	$ 3.23
		100	$ 2.83
		250	$ 1.98
		1000	$ 1.60

Description

General part information

LM46000-Q1 Series

The LM46000-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 500 mA of load current from an input voltage range of 3.5 V to 60 V. The LM46000-Q1 provides exceptional efficiency, output accuracy and dropout voltage in a very small solution size. An extended family is available in 1-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 modulation 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 LM46000-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 the LM4360x and LM4600x families. The LM46000A-Q1 version is optimized for PFM operation and recommended for new designs.

Documents

Technical documentation and resources

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LM46000PWPR

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Technical Specifications

LM46000-Q1 Series

Pricing

Description

LM46000-Q1 Series

Documents

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

Understanding and Applying Current-Mode Control Theory

Compensation Made SIMPLE With LM4360x, LM4600x

Input and Output Capacitor Selection

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

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

SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)

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

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

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

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

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

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

Semiconductor and IC Package Thermal Metrics (Rev. D)

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

LM46000EVM User Guide

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

Inverting made simple by unleashing the buck

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

Differences Between LM4600x/LM4360x A and Non-A OPNs

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

Thermal Design Made Simple With LM43603 and LM46002

LM46000 3.5-V to 60-V, 0.5-A Synchronous Step-Down Voltage Converter datasheet (Rev. B)

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

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

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

Cap Drop Offline Supply for E-Meters

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

LM46000-Q1 Series