Single Phase PWM Controller with Light-Load Efficiency Optimization

The L6738 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 the management of conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.

The L6738 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 the generation of output voltages with ±0.5% accuracy over line and temperature variations.

The oscillator is programmable up to 600 kHz.

The L6738 provides a programmable dual-level overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.

The L6738 is available in a VFQFPN 16 3x3 mm package.

Key Features

  • 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 diode
  • 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
  • Programmable oscillator up to 600 kHz
  • LS-less to manage pre-bias startup
  • Adjustable output voltage
  • Disable function
  • Internal soft-start
  • VFQFPN 16 3x3 mm package

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デザイン

技術文書

製品スペック
Description バージョン サイズ
DS7008 DS7008: Single-phase PWM controller with light-load efficiency optimization 2.0 773 KB

Publications and Collaterals

パンフレット
Description バージョン サイズ
Brochure Power management guide 05.2016 2 MB

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サンプル & 購入

製品型番 パッケージ Packing Type Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L6738TR VFQFPN 16 3x3x1.0 Tape And Reel Active - - NEC EAR99 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
L6738TR アクティブVFQFPN 16 3x3x1.0IndustrialEcopack2 0 0
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(**) 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.

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