Switching Regulators & Controllers - SIMPLE SWITCHER, LM20xxx, and LM5xxx High-Voltage Families from National Semiconductor Home->Power Management

Switching Regulators
 

Simple Switcher® Regulators & Controllers

  • Easy-to-use regulators and controllers
  • Fewest external components
  • Wide input range up to 75V and broad features
  • Supported by WEBENCH® Power Designer
 
 

Power for FPGAs & Digital ICs (<42V Point-of-Load (PoL) Solutions)

  • Power conversion for FPGAs, DSPs, processors, ASICs and SoCs
  • Single- and Multiple- output products
  • Featuring LM20xxx feature-rich synchronous buck regulators
  • Supported by WEBENCH® Power Designer
 
 

High-Voltage Solutions ( ≥42V) featuring the LM5xxx Family

  • High input voltage up to 100V family of DC/DC converters
  • For high-wattage applications including off-line, intermediate bus, and point-of-load
  • Includes switching regulators, PWM controllers, hot-swap controllers, and Power-over-Ethernet (PoE)
 
 

Switching voltage regulators and switching controllers are the backbone of National Semiconductor's Power Management product offerings. Switch Mode Power Supply (SMPS) designs offer significant advantages over traditional linear power regulation through higher efficiency regulation and higher power density. National offers a wide range of switching solutions including regulator (integrated FET) and controller (external FET) ICs supporting all major switching topologies. Explore a wealth of National’s resources for your next switching power supply design including:

For more information and resources on National’s full Power Management portfolio, please visit the Power Management homepage.


Switching Solutions Quick Links

 

 

WHAT'S NEW
Power Products
  • Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs
  • 75V Constant On-Time PFET Buck Switching Controller
  • 42V Constant On-Time PFET Buck Switching Controller
  • Voltage Mode Active Clamp Controller
  • High Efficiency, Multi Display LED Driver with 128 Exponential Dimming Steps & Integrated OLED Power Supply in 1.2mm × 1.6mm µSMD Package
  • Dual Synchronous Emulated Current-Mode Controller
  • N-Channel Controller for Constant Current LED Drivers
  • LM25037Q - Dual-Mode PWM Controller With Alternating Outputs
  • 1.2A Dual Flash LED Driver System with I2C Compatible Interface
  • PowerWise AVS Energy Management Unit with SPMI

See all new power solutions.

 

 

Power Application Notes
  • AN-1696 Designing a Boost LED Driver Using the LM5022
  • AN-1736 LM3433 HB LED Driver Evaluation Kit
  • AN-1774 LM3410X LED Driver 6-Pin LLP Demo Board
  • AN-1775 LM3410X SEPIC 6-Pin LLP Demo Board
Power Evaluation Boards
  • LM3410XMFLEDEV - $37.50 Description: LM3410 Boost will SOT23 Package evaluation board
  • LM3410XSDLEDEV - $37.50 Description: LM3410 Boost with LLP Package evaluation board
  • LM5035AEVAL - $160.00 Description: Evaluation Board for the PWM Controller with Integrated Half-Bridge and SyncFET Drivers
  • LM3881EVAL - $30.00 Description: Evaluation Board for the LM3881 Power Sequencer
Power Online Seminars


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