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L4971

量産中
Design Win
MySTに保存する

1.5A Switching Regulator

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製品概要

概要

The L4971 is a step down monolithic power switching regulator delivering 1.5A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25Ω) to obtain very high efficency and high switching speed.

A switching frequency up to 300KHz is achievable (the maximum power dissipation of the packages must be observed).

A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 50V cover the majority of today’s applications.

Features of this new generations of DC-DC converter include pulse-by-pulse current limit, hiccup mode for short circuit protection, voltage feedforward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.

The device is available in plastic dual in line, DIP8 for standard assembly, and SO16W for SMD assembly.

  • 特徴

    • PROTECTION AGAINST FEEDBACK DISCONNECTION
    • INHIBIT FOR ZERO CURRENT CONSUMPTION
    • SOFT START FUNCTION
    • THERMAL SHUTDOWN
    • ZERO LOAD CURRENT OPERATION
    • VOLTAGE FEEDFORWARD
    • UP TO 1.5A STEP DOWN CONVERTER
    • PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
    • OPERATING INPUT VOLTAGE FROM 8V TO 55V
    • SWITCHING FREQUENCY ADJUSTABLE UP TO 300KHz
    • INTERNAL CURRENT LIMITING (PULSE-BY PULSE AND HICCUP MODE)
    • OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V
    続きを読む 一部を表示

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EDAシンボル / フットプリント / 3Dモデル

STマイクロエレクトロニクス - L4971

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品質 & 信頼性

製品型番 マーケティング･ステータス パッケージ グレード RoHSコンプライアンスグレード Longevity Commitment Longevity Starting Date 材料宣誓書**
L4971
量産中
DIP-8 インダストリアル Ecopack2 - -
L4971D
量産中
SO-16W インダストリアル Ecopack1 (*) - -
L4971D013TR
量産中
SO-16W インダストリアル Ecopack2 (**) - -

L4971

Package:

DIP-8

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4971D

Package:

SO-16W

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

L4971D013TR

Package:

SO-16W

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

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