L7981

量産中
Design Win
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3 A step-down switching regulator

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製品概要

概要

The L7981 device is a step-down switching regulator with a 3.7 A (minimum) current limited embedded Power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions.

The input voltage can range from 4.5 V to 28 V, while the output voltage can be set starting from 0.6 V to VIN.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The QFN and the HSOP packages with exposed pad allow reducing the RthJAdown to 60°C/W and 40°C/W respectively.

  • 特徴

    • 3 A DC output current
    • 4.5 V to 28 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and enable
    • Low dropout operation: 100% duty cycle
    • Voltage feed-forward
    • Zero load current operation
    • Overcurrent and thermal protection
    • VFQFPN 3 x 3 - 8L and HSOP8 package
    続きを読む 一部を表示

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STMicroelectronics - L7981

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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 材料宣誓書**
L7981ATR
量産中
PowerSO-8 インダストリアル Ecopack2
L7981TR
量産中
QFN-8L P 0.5 mm インダストリアル Ecopack2

L7981ATR

Package:

PowerSO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7981TR

Package:

QFN-8L P 0.5 mm

Material Declaration**:

PDF XML
More Info

Marketing Status

量産中

Package

QFN-8L P 0.5 mm

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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