Integrated Circuits (ICs)

LM25575MHX/NOPB

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6V TO 42V, 1.5A STEP-DOWN DC/DC SWITCHING REGULATOR

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Search across all available documentation for this part.

DocumentsAN-643 EMI/RFI Board Design (Rev. B)AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)+22

Integrated Circuits (ICs)

LM25575MHX/NOPB

Active

Texas Instruments

6V TO 42V, 1.5A STEP-DOWN DC/DC SWITCHING REGULATOR

Deep-Dive with AI

DocumentsAN-643 EMI/RFI Board Design (Rev. B)AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)+22

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM25575MHX/NOPB

Current - Output	1.5 A
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	50 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	False
Topology	Buck
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	6 V
Voltage - Output (Max) [Max]	40 V
Voltage - Output (Min/Fixed)	1.225 V

LM25575-Q1 Series

6V to 42V, 1.5A Step-Down DC/DC Switching Regulator

Part	Mounting Type	Voltage - Output (Max) [Max]	Current - Output	Package / Case	Package / Case	Topology	Output Configuration	Voltage - Input (Min) [Min]	Function	Frequency - Switching [Min]	Frequency - Switching [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Voltage - Input (Max) [Max]	Output Type	Voltage - Output (Min/Fixed)	Supplier Device Package	Qualification	Grade	Main Purpose	Voltage - Output	Supplied Contents	Outputs and Type	Outputs and Type	Voltage - Input [Min]	Voltage - Input [Max]	Frequency - Switching	Regulator Topology	Utilized IC / Part	Board Type
Texas Instruments LM25575MHX/NOPB	Surface Mount	40 V	1.5 A	16-PowerTSSOP	0.173 in 4.4 mm Width	Buck	Positive	6 V	Step-Down	50 kHz	1 MHz	-40 °C	125 ¯C	1	42 V	Adjustable	1.225 V	16-HTSSOP
Texas Instruments LM25575MH	Surface Mount	40 V	1.5 A	16-PowerTSSOP	0.173 in 4.4 mm Width	Buck	Positive	6 V	Step-Down	50 kHz	1 MHz	-40 °C	125 ¯C	1	42 V	Adjustable	1.225 V	16-HTSSOP
Texas Instruments LM25575Q0MH/NOPB	Surface Mount	40 V	1.5 A	16-PowerTSSOP	0.173 in 4.4 mm Width	Buck	Positive	6 V	Step-Down	50 kHz	1 MHz	-40 °C	125 ¯C	1	42 V	Adjustable	1.225 V	16-HTSSOP	AEC-Q100	Automotive
Texas Instruments LM25575QMH/NOPB	Surface Mount	40 V	1.5 A	16-PowerTSSOP	0.173 in 4.4 mm Width	Buck	Positive	6 V	Step-Down	50 kHz	1 MHz	-40 °C	125 ¯C	1	42 V	Adjustable	1.225 V	16-HTSSOP	AEC-Q100	Automotive
Texas Instruments LM25575EVAL			1.5 A																		DC/DC Step Down	5 V	Board(s)	Non-Isolated	1	7 V	42 V	300 kHz	Buck	LM25575	Fully Populated
Texas Instruments LM25575Q0MHX/NOPB	Surface Mount	40 V	1.5 A	16-PowerTSSOP	0.173 in 4.4 mm Width	Buck	Positive	6 V	Step-Down	50 kHz	1 MHz	-40 °C	125 ¯C	1	42 V	Adjustable	1.225 V	16-HTSSOP	AEC-Q100	Automotive

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	$ 5.08
		10	$ 3.39
		25	$ 2.95
		100	$ 2.46
		250	$ 2.22
		500	$ 2.07
		1000	$ 1.95
	Digi-Reel®	1	$ 5.08
		10	$ 3.39
		25	$ 2.95
		100	$ 2.46
		250	$ 2.22
		500	$ 2.07
		1000	$ 1.95
	Tape & Reel (TR)	2500	$ 1.52
		5000	$ 1.45
Newark	Each (Supplied on Cut Tape)	1	$ 3.76
		10	$ 3.60
		25	$ 3.42
		50	$ 3.28
		100	$ 3.13
		250	$ 3.04
		500	$ 2.96
		1000	$ 2.91
Texas Instruments	LARGE T&R	1	$ 2.32
		100	$ 2.04
		250	$ 1.43
		1000	$ 1.15

Description

General part information

LM25575-Q1 Series

The LM25575-Q1 is an easy to use buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 V to 42 V, the LM25575-Q1 delivers 1.5-A of continuous output current with an integrated 330-mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50-kHz to 1-MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25575-Q1 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM25575-Q1 is supported by the full suite of WEBENCH®On-Line design tools.

Documents

Technical documentation and resources

LM25575MHX/NOPB

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LM25575MHX/NOPB

Deep-Dive with AI

Technical Specifications

LM25575-Q1 Series

Pricing

Description

LM25575-Q1 Series

Documents

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

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

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

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

Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)

Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576 (Rev. B)

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

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

Semiconductor and IC Package Thermal Metrics (Rev. D)

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

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

AN-1578 LM25575 Evaluation Board (Rev. B)

Power Management Guide 2018 (Rev. R)

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

DC/DC converter datasheets – System losses demystified

Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (Rev. B)

LM25575 42-V, 1.5-A Step-Down Switching Regulator datasheet (Rev. H)

Understanding and Applying Current-Mode Control Theory

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

DC/DC converter datasheets – System efficiency demystified

Quantifying the value of wide VIN

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

Input and Output Capacitor Selection

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

LM25575-Q1 Series