National Semiconductor LM5008 Guide

The LM5008 is a high-voltage step-down switching regulator from TI. It integrates a 100V N-channel buck switch, an internal VCC regulator, and requires no external compensation. It is highly efficient and low-noise, and is suitable for a variety of voltage and current applications.


National Semiconductor LM5008 Guide - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
15
File format
PDF
File size
278 KB
Published
08 May, 2012
Updated
01 October, 2023
Model
LM5008
MD5 checksum
B121CA46D0C3A72B76D9A56DFDB11646

About this manual

The LM5008 is a high‑voltage (100 V) step‑down switching regulator that uses a hysteretic control scheme with an on‑time inversely proportional to the input voltage. It is offered in MSOP‑8 and thermally enhanced LLP‑8 packages and includes features such as intelligent current‑limit protection, thermal shutdown, and under‑voltage lockout.

The document contains detailed pin descriptions, electrical characteristics, typical performance curves, and recommended application circuits. It also lists absolute maximum ratings, package dimensions, and compliance information for life‑support and banned‑substance regulations.

What's inside

  • General Description
  • Features
  • Typical Applications
  • Package
  • Pin Description
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Functional Description
  • Physical Dimensions

Specifications

Input voltage range9.5 V to 95 V
Package typesMSOP‑8 and LLP‑8
Current‑limit threshold0.41 A to 0.61 A
Thermal shutdown temperature165 °C

Frequently asked questions

What is the LM5008?

The LM5008 is a high‑voltage (100 V) step‑down switching regulator.

What protection features does the LM5008 include?

It provides thermal shutdown, Vcc under‑voltage lockout, gate‑drive under‑voltage lockout, a max duty‑cycle limiter, and intelligent current‑limit protection.

Which packages are available for the LM5008?

The device is offered in MSOP‑8 and thermally enhanced LLP‑8 packages.

What is the recommended input voltage range?

The recommended operating range is 9.5 V to 95 V.

Download PDF (278 KB)

More National Semiconductor Manuals


View all National Semiconductor manuals →