AST1S31HF

概要

サンプル & 購入

ソリューション

ドキュメント

CADリソース

ツール & ソフトウェア

品質 & 信頼性

はじめる

Partner products

Sales Briefcase

Please enter your desired search query and search again

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
続きを読む一部を表示

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Supply Design Tool

SMPS design, by topology, by type and by product

PFC design with analog and digitial control

Supports various PCB configurations

注目ビデオ

すべてを見る

Live tutorial: correlating eDesignSuite & eDSim simulation data with bench measurements using an L6983 evaluation board

Watch the video (10:00)

Design and simulate L6983 buck converter operation with eDSim

Watch the video (9:12)

L6986I and A6986I : 38V, 5W synchronous iso-buck regulators, DC-DC converters

Watch the video (1:40)

推奨コンテンツ

All tools & software

ソリューション用評価ボード

	製品型番	ステータス	概要	タイプ	サプライヤ
Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu	STEVAL-ISA160V1	量産中	3 A / 2.3 MHz step-down synchronous switching regulator based on the AST1S31HF in a DFN 3x3 package	DC-DC Converter	ST	STEVAL-ISA160V1 概要: 3 A / 2.3 MHz step-down synchronous switching regulator based on the AST1S31HF in a DFN 3x3 package