LM5010

ACTIVE

8-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator

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Product details

Parameters

Vin (Min) (V) 8 Vin (Max) (V) 75 Vout (Min) (V) 2.5 Vout (Max) (V) 70 Iout (Max) (A) 1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Enable, Over Current Protection Control mode Constant on-time (COT) Duty cycle (Max) (%) 99 Type Converter Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 WSON (DPR) 10 16 mm² 4 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • Input Voltage Range: 8 V to 75 V
  • Valley Current Limit At 1.25 A
  • Switching Frequency Can Exceed 1 MHz
  • Integrated N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With
    Load and Line Variations
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Precision 2.5-V Feedback Reference
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation
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Description

The LM5010 step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying in excess of 1-A load current. This high-voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The hysteretic regulation scheme requires no loop compensation, resulting in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.

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Technical documentation

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No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet LM5010 High-Voltage 1-A Step-Down Switching Regulator datasheet (Rev. G) Apr. 27, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides Automotive wide VIN DC/DC brochure Jul. 08, 2014
User guides AN-1352 LM5010 Evaluation Board (Rev. A) Apr. 30, 2013
User guides AN-1423 LM5010A Evaluation Board (Rev. A) Apr. 30, 2013
Application notes Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) Apr. 23, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

LM5010 High Voltage 1A Step Down Switching Regulator

Features
  • Input Voltage Range: 8 V to 75 V
  • Valley Current Limit at 1.25 A
  • Switching Frequency Can Exceed 1 MHz
  • Integrated N-Channel Buck Switch
  • Integrated Startup Regulator
  • No Loop Compesation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With Load and Line Variations
  • Maximum Duty Cycle (...)
EVALUATION BOARDS Download
document-generic User guide
$249.00
Description
To get started:

Step 1: Hardware
Purchase the TAS3251 Evaluation Module
If you intend to use Smart Amp features, purchase the Speaker Characterization Board for PurePath™ Audio Smart Amp 

Step 2: Software
Request access to PurePath™ Console 3 and TAS3251 Software 
If you intend to use Smart Amp features,  (...)

Features
  • Stereo, Mono, and Two-way speaker configurations
  • Audio Inputs: USB, Optical SPDIF, COAX SPDIF, Direct I2S or TDM
  • Audio Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
  • Works with PurePath™ Console 3 for advanced tuning
  • Double-sided, plated-through, 2 oz. Cu 2 layer PCB layout
EVALUATION BOARDS Download
document-generic User guide
$149.00
Description
The TPA3244EVM Ultra-HD evaluation module demonstrates the TPA3244DDW integrated circuit from Texas Instruments. The TPA3244DDW is a high-performance class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback design (...)
Features
  • Self-contained protection system (short circuit, clip and thermal)
  • Standard 2VRMS differential input  or single-ended line input
  • BTL, PBTL and SE output configurations support
  • Double-sided, plated-through, 2oz. cu 4 layer PCB layout
  • Supports Audio Plug-In Boards through its AIB connector
  • Supports (...)
EVALUATION BOARDS Download
document-generic User guide
$149.00
Description
The TPA3245EVM Ultra-HD evaluation module demonstrates the TPA3245DDV integrated circuit from Texas Instruments. The TPA3245DDV is a high-performance class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback design (...)
Features
  • Stereo Ultra-HD evaluation module
  • Self-contained protection system (short circuit, clip and thermal)
  • Standard 2VRMS differential input  or single ended line input
  • BTL, PBTL and SE output configurations support
  • Double-sided, plated-through, 2oz. cu 2 layer PCB layout

Design tools & simulation

SIMULATION MODELS Download
SNVM493.ZIP (39 KB) - PSpice Model
SIMULATION MODELS Download
SNVM976.ZIP (4 KB) - PSpice Model
CALCULATION TOOLS Download

Reference designs

REFERENCE DESIGNS Download
Class 2 Non-isolated PoE Buck Converter (5V/1A) Reference Design
PMP10812 — The PMP10812 reference design is ideal for Class 2 PoE PD applications that do not require isolation.  The TPS2378 PD controller provides the interface to the PSE.  The LM5010 buck converter has an integrated high side FET and external low side diode rectifier for low cost.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options
WSON (DPR) 10 View options

Ordering & quality

Support & training

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