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L5973D

量産中
Design Win Education
MySTに保存する

Up to 2 A step down switching regulator

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製品概要

概要

The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(j-amb) down to approximately 40 °C/W. The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

  • 特徴

    • 2.5 A internal switch
    • Operating input voltage from 4 V to 36 V
    • 3.3 V / (±2%) reference voltage
    • Output voltage adjustable from 1.235 V to 35 V
    • Low dropout operation: 100 % duty cycle
    • 250 kHz internally fixed frequency
    • Voltage feedforward
    • Zero load current operation
    • Internal current limiting
    • 同期化
    • Adjustable soft-start time
    • Inhibit for zero current consumption
    • Protection against feedback disconnection
    • Thermal shutdown
    続きを読む 一部を表示

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SPICE models (1)

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X597X Pspice model
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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**
L5973D
量産中
PowerSO-8 インダストリアル Ecopack2 10 2023-06-06T00:00:00.000+02:00
L5973D013TR
量産中
PowerSO-8 インダストリアル Ecopack2 10 2023-06-06T00:00:00.000+02:00

L5973D

Package:

PowerSO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L5973D013TR

Package:

PowerSO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

PowerSO-8

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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