LM46002PWPT

Technical Specifications

Parameters and characteristics for this part

Specification	LM46002PWPT

Current - Output	2 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

LM46002-Q1 Series

Automotive Qualified 3.5V to 60V, 2A Synchronous Step-Down Voltage Converter

Part	Voltage - Output (Max)	Topology	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Mounting Type	Function	Number of Outputs	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Type	Package / Case	Package / Case	Grade	Voltage - Output (Min/Fixed)	Output Configuration	Current - Output	Qualification	Regulator Topology	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Main Purpose	Supplied Contents	Outputs and Type	Outputs and Type	Board Type	Voltage - Output	Frequency - Switching
Texas Instruments LM46002AQPWPRQ1	28 V	Buck	3.5 V	-40 °C	125 ¯C	16-HTSSOP	Surface Mount	Step-Down	1	60 V	2.2 MHz	200 kHz	Adjustable	16-PowerTSSOP	0.173 in 4.4 mm Width	Automotive	1 V	Positive	2 A	AEC-Q100
Texas Instruments LM46002PWPEVM																			2 A		Buck	60 V	3.5 V	LM46002	DC/DC Step Down	Board(s)	Non-Isolated	1	Fully Populated	3.3 V	500 kHz
Texas Instruments LM46002QPWPRQ1	28 V	Buck	3.5 V	-40 °C	125 ¯C	16-HTSSOP	Surface Mount	Step-Down	1	60 V	2.2 MHz	200 kHz	Adjustable	16-PowerTSSOP	0.173 in 4.4 mm Width	Automotive	1 V	Positive	2 A	AEC-Q100
Texas Instruments LM46002PWPT	28 V	Buck	3.5 V	-40 °C	125 ¯C	16-HTSSOP	Surface Mount	Step-Down	1	60 V	2.2 MHz	200 kHz	Adjustable	16-PowerTSSOP	0.173 in 4.4 mm Width		1 V	Positive	2 A
Texas Instruments LM46002AQPWPTQ1	28 V	Buck	3.5 V	-40 °C	125 ¯C	16-HTSSOP	Surface Mount	Step-Down	1	60 V	2.2 MHz	200 kHz	Adjustable	16-PowerTSSOP	0.173 in 4.4 mm Width	Automotive	1 V	Positive	2 A	AEC-Q100
Texas Instruments LM46002QPWPTQ1	28 V	Buck	3.5 V	-40 °C	125 ¯C	16-HTSSOP	Surface Mount	Step-Down	1	60 V	2.2 MHz	200 kHz	Adjustable	16-PowerTSSOP	0.173 in 4.4 mm Width	Automotive	1 V	Positive	2 A	AEC-Q100

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	$ 5.75
		10	$ 5.17
		25	$ 4.88
		100	$ 4.23
	Digi-Reel®	1	$ 5.75
		10	$ 5.17
		25	$ 4.88
		100	$ 4.23
	Tape & Reel (TR)	250	$ 4.02
		500	$ 3.60
		1250	$ 3.04
		2500	$ 2.89
Texas Instruments	SMALL T&R	1	$ 4.34
		100	$ 3.80
		250	$ 2.67
		1000	$ 2.15

Description

General part information

LM46002-Q1 Series

The LM46002-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in various load-current options and 36-V maximum input voltage. The device is pin-to-pin compatible package with LM4360x and LM4600x family. 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. 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 LM46002A-Q1 version is optimized for PFM operation and recommended for new designs. The LM46002-Q1 device is available in the 16-lead HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.

Documents

Technical documentation and resources

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LM46002PWPT

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Technical Specifications

LM46002-Q1 Series

Pricing

Description

LM46002-Q1 Series

Documents

Thermal Design Made Simple With LM43603 and LM46002

Understanding and Applying Current-Mode Control Theory

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

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

Differences Between LM4600x/LM4360x A and Non-A OPNs

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

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

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

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

LM46002 3.5-V to 60-V, 2-A Synchronous Step-Down Voltage Converter datasheet (Rev. C)

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

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

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

Semiconductor and IC Package Thermal Metrics (Rev. D)

LM46002 EVM User Guide

Inverting made simple by unleashing the buck

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

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

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

Buck Converter Quick Reference Guide (Rev. B)

Input and Output Capacitor Selection

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

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

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

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

SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)

Compensation Made SIMPLE With LM4360x, LM4600x

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