LM5010A

ACTIVE

6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator

Top

Product details

Parameters

Vin (Min) (V) 6 Vin (Max) (V) 75 Vout (Min) (V) 2.5 Vout (Max) (V) 70 Iout (Max) (A) 1 Iq (Typ) (uA) 650 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Enable, Over Current Protection Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 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

  • LM5010A-Q1 Qualified for Automotive
    Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 6-V to 75-V Input Voltage Range
  • Valley Current Limit at 1.25 A
  • Programmable Switching Frequency Up To 1 MHz
  • Integrated 80-V N-Channel Buck Switch
  • Integrated High Voltage Bias Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency With Line
    and Load Variations
  • Adjustable Output Voltage
  • 2.5-V, ±2% Feedback Reference
  • Programmable Soft-Start
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation
open-in-new Find other Buck converters (integrated switch)

Description

The LM5010Ax step-down switching regulator is an enhanced version of the LM5010 with the input operating range extended to 6-V minimum. The LM5010Ax features all the functions needed to implement a low-cost, efficient, buck regulator capable of supplying in excess of 1-A load current. This high-voltage regulator integrates an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The constant ON-time regulation scheme requires no loop compensation resulting in fast load transient response and simplified 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.

open-in-new Find other Buck converters (integrated switch)
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet LM5010A, LM5010A-Q1 High-Voltage 1-A Step-Down Switching Regulator datasheet (Rev. F) May 24, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

LM5010A High Voltage 1A Step Down Switching Regulator

Features
  • Wide 6V to 75V input voltage range
  • Valley current limiting at 1.25A
  • Programmable switching frequency up to 1MHz
  • Integrated 80V N-Channel buck switch
  • Integrated high voltage bias regulator
  • No loop compensation required
  • Ultra-fast transient response
  • Nearly constant operating frequency with line and load (...)

Design tools & simulation

SIMULATION MODEL Download
SNVM493.ZIP (39 KB) - PSpice Model
SIMULATION MODEL Download
SNVM976.ZIP (4 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
LM5010A Quick Start Calculator
LM5010AQUICK-CALC

Reference designs

REFERENCE DESIGNS Download
High Fidelity 175W Class-D Audio Amplifier with Digital Inputs and Processing Reference Design
TIDA-00874 This design turns the extremely high performance analog input TPA3251 Class-D amplifier into a digital input system with audio processing using the highly versatile PCM5242 differential output DAC. Now the full performance of TPA3251 amplifier can be realized with a variety of digital input sources (...)
document-generic Schematic
REFERENCE DESIGNS Download
Automotive Buck Conv for High-temp Ambient (105 deg) Providing 15V @ 160mA Reference Design
PMP8660 — This design is a buck converter for automotive applications covering an input voltage range of 30..60V. It provides an output voltage of 15.0V @ 160mA and can operate up to 105 deg ambient temperature.
Design files
REFERENCE DESIGNS Download
5.0V @ 0.35A Buck Converter
PMP8508 — This design is a buck converter for automotive as well as for non-automotive applications. It delivers an output voltage of 5.0V @ 0.35A at an input voltage range of 7.5-24V. It can operate up to 60V for a short time.
Design files

CAD/CAE symbols

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

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos