Single-phase PWM controller with light-load efficiency optimization

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  • The L6739 is a single-phase step-down controller with integrated high current drivers that provides complete control logic and protection to realize a DC-DC converter.

    The device flexibility allows to manage conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.
    The L6739 device features a proprietary algorithm that allows light-load efficiency optimization, boosting efficiency without compromising the output voltage ripple.
    The integrated 0.8 V reference allows generation of output voltages with ± 0.5% accuracy over line and temperature variations.
    The oscillator is programmable up to 600 kHz.
    The L6739 provides a programmable overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.
    The L6739 device is available in a VFQFPN 16 - 3 x 3 mm package.

    主要特性

    • Flexible power supply from 5 V to 12 V bus
    • Power conversion input as low as 1.5 V
    • Light-load efficiency optimization
    • Embedded bootstrap switch
    • VIN detector
    • 0.8 V internal reference
    • 0.5% output voltage accuracy
    • Remote GND recovery
    • High current integrated drivers
    • Sensorless and programmable precise-OC sense across inductor DCR
    • OV protection
    • Overtemperature protection
    • Programmable oscillator up to 600 kHz
    • LS-less to manage pre-bias startup
    • Adjustable output voltage
    • Disable function
    • Internal soft-start
    • VFQFPN 16 - 3 x 3 mm package

样片和购买

型号
Package
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Budgetary Price (US$)*
Quantity
ECCN (US)
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L6739TR VFQFPN 16 3x3x1.0 Tape And Reel
Active
- - EAR99 PHILIPPINES Check Availability

Distributor availability ofL6739TR

代理商名称
地区 库存 最小订购量 Third party link
Farnell Element14 EUROPE 4000 1 Order Now

代理商库存报告日期: 2019-06-25

代理商名称

Farnell Element14

库存

4000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-25

Get sample

L6739TR

Package

VFQFPN 16 3x3x1.0

Packing Type

Tape And Reel

Unit Price (US$)

*

Distributor availability ofL6739TR

代理商名称
地区 库存 最小订购量 Third party link
Farnell Element14 EUROPE 4000 1 Order Now

代理商库存报告日期: 2019-06-25

代理商名称

Farnell Element14

库存

4000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-25

Marketing Status

Active

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

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

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技术文档

    • 描述 版本 文档大小 Action
      DB2253
      Single-phase PWM controller with light-load efficiency optimization
      1.0
      135.24 KB
      PDF
      DS10351
      Single-phase PWM controller with light-load efficiency optimization
      1.0
      743.53 KB
      PDF
      DB2253

      Single-phase PWM controller with light-load efficiency optimization

      DS10351

      Single-phase PWM controller with light-load efficiency optimization

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6739TR
Active
VFQFPN 16 3x3x1.0 工业 Ecopack2

L6739TR

Package:

VFQFPN 16 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 16 3x3x1.0

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.