LM2623

ACTIVE

0.8V to 14V input voltage, 2A load current, step-up DC-DC

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Product details

Parameters

Vin (Min) (V) 0.8 Vin (Max) (V) 14 Vout (Min) (V) 1.24 Vout (Max) (V) 14 Switch current limit (Typ) (A) 2.85 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 300 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.08 Features Enable Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Type Converter Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (NHE) 14 16 mm² 4 x 4 open-in-new Find other Boost converters (integrated switch)
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Technical documentation

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Type Title Date
* Datasheet LM2623 General-Purpose, Gated-Oscillator-Based DC-DC Boost Converter datasheet (Rev. I) Oct. 19, 2017
Application notes AN-1221 LM2623 General Purpose, Boost Converter Circuit (Rev. D) Apr. 29, 2013
Application notes AN-1258 LM2623 Boost Converter - A Simple Supply (Rev. C) Apr. 29, 2013
User guides AN-1274 LM2623 Evaluation Board (Rev. H) Apr. 29, 2013
White papers LM2623 Boost Cnvrtr- A Smple Tech Twist Produces Indstry's Most Versatile Supply Jun. 01, 2002

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

General Purpose, Gated Oscillator Based, DC/DC Boost Converter

Features
  • Good efficiency Over a Very Wide Load Range
  • Very Low Output Voltage Ripple
  • Small, Mini-SO-8 Package (half the Footprint of Standard 8 pin SO Package)
  • 1.09 mm Package height
  • Up to 2 MHz Switching Frequency
  • .8V to 14V Operating Voltage
  • 1.1V Start-up Voltage
  • 1.24V - 14V Adjustable Output Voltage
  • Up to 2A Load (...)

Design tools & simulation

CALCULATION TOOLS Download
Fly-Buck and Flyback Topology Selector
FLYBUCK-FLYBACK-DESIGN-CALC This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
Features
  • Features isolated topologies like Fly-Buck™, Fly-Buck-Boost, DCM and CCM Flyback
  • Capability to design up to 6 isolated outputs
  • Recommends ICs for desired application design
  • Incorporates loop compensation in designs
  • Compares efficiency, external component count and transformer currents for every topology (...)

CAD/CAE symbols

Package Pins Download
VSSOP (DGK) 8 View options
WSON (NHE) 14 View options

Ordering & quality

Support & training

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Videos

Power Tips: Layout for a Boost Power Stage

This video shows a simplified schematic and PCB layout for a boost converter

Posted: 21-Jan-2016
Duration: 04:31

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