LM4510

ACTIVE

Synchronous Step-Up DC/DC Converter with True Shutdown Isolation

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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 1.265 Vout (Max) (V) 18 Switch current limit (Typ) (A) 1.2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 850 Switching frequency (Max) (kHz) 1200 Iq (Typ) (mA) 1.7 Features Synchronous Rectification Duty cycle (Max) (%) 94 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

WSON (DSC) 10 9 mm² 3 x 3 open-in-new Find other Boost converters (integrated switch)

Features

  • 18 V@ 80 mA from 3.2 V Input
  • 5 V @ 280 mA from 3.2 V Input
  • No External Schottky Diode Required
  • 85% Peak Efficiency
  • Soft Start
  • True Shutdown Isolation
  • Stable with Small Ceramic or Tantalum
    Output Capacitors
  • Output Short-Circuit Protection
  • Feedback Fault Protection
  • Input Undervoltage Lock Out
  • Thermal Shutdown
  • 0.002-µA Shutdown Current
  • Wide Input Voltage Range: 2.7 V to 5.5 V
  • 1-MHz Fixed Frequency Operation
  • Low-profile 10-pin WSON Package
    (3 mm × 3 mm × 0.8 mm)
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Description

The LM4510 is a current mode step-up DC/DC converter with a 1.2-A internal NMOS switch designed to deliver up to 120 mA at 16 V from a Li-Ion battery.

The device’s synchronous switching operation (no external Schottky diode) at heavy-load, and non-synchronous switching operation at light-load, maximizes power efficiency.

True shutdown function by synchronous FET and related circuitry ensures input and output isolation.

A programmable soft-start circuit allows the user to limit the amount of inrush current during start-up. The output voltage can be adjusted by external resistors.

The LM4510 features advanced short-circuit protection to maximize safety during output to ground short condition. During shutdown the feedback resistors and the load are disconnected from the input to prevent leakage current paths to ground.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet LM4510 Synchronous Step-Up DC/DC Converter with True Shutdown Isolation datasheet (Rev. D) Nov. 12, 2014
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides AN-1697 LM4510 Evaluation Board (Rev. A) May 01, 2013
Application notes Designing Energy-Efficient Handheld Illum Solutions (Rev. A) Apr. 30, 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
Description

The LM4510 is a current mode step-up DC/DC converter with a 1.2A internal NMOS switch designed to deliver up to 120 mA at 16V from a Li-Ion battery.

The device`s synchronous switching operation (no external Schottky diode) at heavy-load, and non-synchronous switching operation at light-load (...)

Features
  • 18V @ 80mA from a 3.2V input
  • 5V @ 280 mA from 3.2V input
  • No external Schottky diode required
  • 85% peak efficiency
  • Soft start
  • True shutdown isolation
  • Stable with small ceramic or tantalum output capacitors
  • Output short-circuit protection
  • Feedback fault protection
  • Input under-voltage lock out
  • Thermal shutdown
  • (...)

Design tools & simulation

SIMULATION TOOLS 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
  • (...)

CAD/CAE symbols

Package Pins Download
WSON (DSC) 10 View options

Ordering & quality

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