A7987

量産中
Design Win Education
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61 V 3A asynchronous step-down switching regulator with adjustable current limitation for automotive

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製品概要

概要

The A7987 is a step-down monolithic switching regulator that can deliver up to 3 A DC. The adjustable output voltage ranges from 0.8 V to VIN. The wide input voltage range and the almost 100% duty cycle capability meet the fail-safe specifications for automotive systems. The embedded switch-over feature on the VBIAS pin maximizes efficiency at light load. The adjustable current limitation, designed to select the inductor RMS current in accordance with the nominal output current, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing with digital frequency fold-back implements an effective constant current protection over the different application conditions. The peak current fold-back decreases the stress of the power components in heavy short-circuit conditions. The PGOOD open collector output can also implement the output voltage sequencing during the power-up phase. Multiple devices can be synchronized sharing the SYNCH pin to prevent beating noise for low noise requirements such as in infotainment applications.

  • 特徴

    • 3 A DC output current
    • 4.5 V to 61 V operating input voltage
    • Adjustable fsw (250 kHz to 1.5 MHz)
    • Output voltage adjustable from 0.8 V to VIN
    • 同期化
    • Adjustable soft-start time
    • Adjustable current limitation
    • VBIAS improves efficiency at light load
    • PGOOD open collector output
    • Digital frequency fold-back in short-circuit
    • Auto-recovery thermal shutdown
    • Qualified following AEC-Q100 requirements
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A7987 SIMPLIS examples schematics
2024.06 12 Jun 2024
12 Jun 2024
A7987 SIMPLIS examples schematics 2024.06

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**
A7987TR
量産中
HTSSOP16 オートモーティブ Ecopack2 10 2023-06-06T00:00:00.000+02:00

A7987TR

Package:

HTSSOP16

Material Declaration**:

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More Info

Marketing Status

量産中

Package

HTSSOP16

Grade

Automotive

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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