AST1S31HF - Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications - STマイクロエレクトロニクス

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製品概要

概要

The AST1S31HF is an internally compensated 2.3 MHz fixed frequency PWM synchronous step-down regulator. The AST1S31HF operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to V_IN.

The AST1S31HF device integrates a 70 mΩ high-side switch and a 55 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.

The peak current mode control with internal compensation deliver a very compact solution with a minimum component count.

The AST1S31HF is available in a 3 mm x 3 mm, 8-lead VFDFPN package.

特徴
AECQ100 qualified

3 A DC output current

2.8 V to 4 V input voltage

Output voltage adjustable from 0.8 V

2.3 MHz switching frequency

Internal soft-start and enable
Integrated 70 mΩ and 55 mΩ power MOSFETs

All ceramic capacitor

Power Good (POR)

Cycle-by-cycle current limiting

Current foldback short-circuit protection

VFDFPN 3 x 3 - 8L package
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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**
AST1S31HF	量産中	VFDFPN 8 3x3x1.0	オートモーティブ	Ecopack1	PDF XML

AST1S31HF

Package:

VFDFPN 8 3x3x1.0

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