L5983

Active

Up to 1.5 A step down switching regulator

Download datasheet Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

The L5983 is a step-down switching regulator with a 2.0 A (min.) current limited embedded Power MOSFET, so it is able to deliver an output current in excess of 1.5 A DC to the load. The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus.
Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
The VFQFPN package with an exposed pad allows reducing the RthJAdown to approximately 60 °C/W.
  • All features

    • 1.5 A DC output current
    • 2.9 V to 18 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and inhibit
    • Low dropout operation: 100% duty cycle
    • Voltage feedforward
    • Zero load current operation
    • Overcurrent and thermal protection
    • VFQFPN8 3 x 3 mm package

Circuit Diagram

You might also like...

Recommended for you

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      EVAL5983

      Active

      1.5 A step-down switching regulator demonstration board based on the L5983

      PSU and Converter Solution Eval Boards --
      EVAL5983

      Description:

      1.5 A step-down switching regulator demonstration board based on the L5983

      STEVAL-ISA144V1

      Active

      1.5 A step-down switching regulator demonstration board based on the L5983

      PSU and Converter Solution Eval Boards --
      STEVAL-ISA144V1

      Description:

      1.5 A step-down switching regulator demonstration board based on the L5983

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L5983

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L5983TR
Active
QFN-8L P 0.5 mm Industrial Ecopack2

L5983TR

Package:

QFN-8L P 0.5 mm

Material Declaration**:

Marketing Status

Active

Package

QFN-8L P 0.5 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L5983TR Available at 2 distributors

Distributor availability ofL5983TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3923 1 Order Now
MOUSER WORLDWIDE 3577 1 Order Now

Distributor reported inventory date: 2021-02-26

Distributor Name

DIGIKEY

Stock

3923

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3577

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-26

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel QFN-8L P 0.5 mm -40 150 PHILIPPINES 0.918 / 1k

L5983TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.918 / 1k

Distributor availability ofL5983TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3923 1 Order Now
MOUSER WORLDWIDE 3577 1 Order Now

Distributor reported inventory date: 2021-02-26

Distributor Name

DIGIKEY

Stock

3923

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3577

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

QFN-8L P 0.5 mm

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.918 / 1k

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors