L5963   Product is in volume production.

Dual monolithic switching regulator with LDO and HSD

データシートのダウンロード

L5963 is a dual step-down switching regulator with internal power switches, high side driver and a low drop-out linear regulator that can operate as standby regulator or normal LDO.

All the regulators can be connected directly to the vehicle battery. In addition to an adjustable voltage detector, voltage supervisors are available.

The two DC-DC converters can work in free-run condition or synchronize themselves to an external clock. DC/DCs' PWM outputs have a 180° phase shift.

The high operating frequency allowed by the synchronization input helps to reduce AM and FM interferences and grants the use of small and low cost inductors and capacitors.

This IC finds application in the automotive segment, where load dump protection and wide input voltage range are mandatory.

A slug-up package option is available for applications which require heatsink use.

In standby condition the device guarantees extremely low quiescent current (25 μA typical @ -40 °C < T < 85 °C)

主な特徴

  • AEC-Q100 qualified
  • Two step-down synchronous switching voltage regulators with internal power switches:
    • Wide input voltage range (from 3.5 V to 26 V)
    • Internal high-side/ low-side NDMOS
    • 1 V minimum output
    • 3.0 A load current
    • 250 kHz free-run frequency
    • 250 kHz < f < 2 MHz synchronization range
    • Integrated soft-start
    • Independent hardware enable pins
    • Independent power supply
    • 180° PWM output phase shift
    • Programmable switching frequency divider by 1, 2, 4 or 8 between the two DC/DC regulators
    • Power good function
  • One standby / linear regulator
    • Output voltage programmable with external resistor divider
    • 250 mA maximum current capability
    • Backup function
    • Power good function
  • One high side driver
    • 0.5 V max drop @ 0.5 A
    • Protected against short to ground and battery, loss of ground and battery, unsupplied short to battery
  • Programmable under voltage battery detector
    • Under voltage threshold adjustable through dedicated pin (VDIN)
  • Load dump protection
  • Independent thermal protection on all regulators
  • Independent current limit on all regulators
  • Extremely low quiescent current in standby conditions
  • Power good / adjustable voltage detector outputs to realize customized power up/down sequences

リソース

技術文書

製品スペック
Description バージョン サイズ
DS11357 DS11357: Automotive dual monolithic switching regulator with LDO and HSD 3.0 940 KB
ユーザマニュアル
Description バージョン サイズ
UM1951 UM1951: L5963 evaluation boards 3.0 568 KB

Publications and Collaterals

フライヤー
Description バージョン サイズ
Automotive multichannel power management ICs 1.0 620 KB
セレクションガイド
Description バージョン サイズ
Power amplifiers and voltage regulators 750 KB
Smart power solutions for car body applications 4.0 1 MB
パンフレット
Description バージョン サイズ
Driving smart power in automotive 1.0 1014 KB

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サンプル & 購入

製品型番 パッケージ Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * 数量 ECCN (US) Country of Origin More info Order from ST Order from Distributors
L5963DN-EHX PowerSSO 36 Tube -40 105 Active 2.4 1000 EAR99 ITALY MORE INFO No availability reported, please contact our Sales office
L5963U-KBX PowerSSO 36 Tube -40 105 Active 2.4 1000 EAR99 - MORE INFO No availability reported, please contact our Sales office
L5963Q-V0T VFQFPN 48 7x7x1.0 Tape And Reel -40 105 Active 2.59 1000 EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office
L5963Q-V0Y VFQFPN 48 7x7x1.0 Tray -40 105 Active 2.59 1000 EAR99 MALAYSIA MORE INFO 直接購入 買い物かごに追加 DISTRIBUTOR AVAILABILITY
L5963DN-EHT PowerSSO 36 Tape And Reel -40 105 Active 2.4 1000 EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office
L5963D-EHT PowerSSO 36 Tape And Reel -40 105 NRND 2.4 1000 EAR99 - MORE INFO No availability reported, please contact our Sales office
L5963U-KBT PowerSSO 36 Tape And Reel -40 105 Active 2.4 1000 EAR99 - MORE INFO No availability reported, please contact our Sales office
L5963D-EHX PowerSSO 36 Tube -40 105 NRND 2.4 1000 EAR99 - MORE INFO No availability reported, please contact our Sales office
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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**
L5963DN-EHX アクティブPowerSSO 36オートモーティブEcopack2 0 0
L5963U-KBX アクティブPowerSSO 36オートモーティブEcopack2 0 0
L5963Q-V0T アクティブVFQFPN 48 7x7x1.0オートモーティブEcopack2 0 0
L5963Q-V0Y アクティブVFQFPN 48 7x7x1.0オートモーティブEcopack2 0 0
L5963DN-EHT アクティブPowerSSO 36オートモーティブEcopack2 0 0
L5963D-EHT NRNDPowerSSO 36オートモーティブEcopack2 0 0
L5963U-KBT アクティブPowerSSO 36オートモーティブEcopack2 0 0
L5963D-EHX NRNDPowerSSO 36オートモーティブEcopack2 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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