ST1S32 - 4 A DC step-down switching regulator - STマイクロエレクトロニクス

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

セールスブリーフケース

Please enter your desired search query and search again

製品概要

概要

The ST1S32 is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The ST1S32 operates from 2.8 V to 5.5 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.

The ST1S32 integrates a 60 mΩ high-side switch and a 45 mΩ synchronous rectifier, allowing very high efficiency with very low output voltages.

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

The ST1S32 is available in 4 mm x 4 mm, 8-lead VFDFPN package.

特徴
4 A DC output current

2.8 V to 5.5 V input voltage

Output voltage adjustable from 0.8 V

1.5 MHz switching frequency

Internal soft-start and enable

Integrated 60 mΩ and 45 mΩ Power MOSFETs
All ceramic capacitor

Power Good (POR)

Cycle-by-cycle current limiting

Current foldback short-circuit protection

VFDFPN 8 4x4x1.0 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.

Choose design tool:

Power Management Design Center

Power Supply Design Tool

• SMPS design, by topology, by type and by product

• PFC design with analog and digitial control

• Supports various PCB configurations

Choose type:

DC/DC

AC/DC

太陽光発電システム

Power Management Design Center

LED Lighting Design Tool

• Handles AC-DC and DC-DC design in common topologies

• Displays interactive and annotated schematic

• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data

Choose type:

DC/DC

AC/DC

Power Management Design Center

Digital Power Workbench

• Provides a step-by-step optimized design of power section and control loop

• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Management Design Center

Power Tree Designer

• Specify input/output power for each node in the tree

• Check for consistency

• Design each individual node

Choose design tool:

Thermal-electrical Simulators for Components

AC Switches Simulator

• Select ratings and application waveforms

• Get junction temperature and blocking voltage graphs

• Search and sort suitable devices

Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

• Select ratings and application waveforms

• Estimate power losses

• Search and sort suitable devices

Thermal-electrical Simulators for Components

STPOWER Studio

• Supports long mission profiles

• Provides power loss and temperature graphs

• Helps define heatsink thermal properties

Thermal-electrical Simulators for Components

Twister Sim

• Help select the right ViPOWER Automotive power device

• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis

• Supports various PCB configurations

Thermal-electrical Simulators for Components

TVS Simulator

• Specify system ratings and surge waveform

• Search and sort suitable devices

Thermal-electrical Simulators for Components

Estimate

• Build simple schematics and firmware inputs in minutes

• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs

Choose design tool:

Signal Conditioning Design Tool

Active Filters

• Handles multi-stage-designs and common topologies

• Returns circuit component values

• Provides gain, phase and group delay graphs

• Low Pass, High Pass and Band Pass

Signal Conditioning Design Tool

Comparators

• Handles most common configurations

• Returns circuit components values

• Provides I/O signal waveforms

• Inverting, Non Inverting, Window

Signal Conditioning Design Tool

Low side Current Sensing

• Returns circuit component values

• Provides current error graphs

Signal Conditioning Design Tool

High side Current Sensing

• Provides current error graphs.

• Help to select the right High side current sensing and shunt devices.

Choose design tool:

NFC/RFID Calculators

NFC Inductance

• Input geometry and substrate properties

• Get antenna impedance

NFC/RFID Calculators

UHF Link Budget

• Enter forward and reverse link characteristics

• The tool returns link budget estimate

NFC/RFID Calculators

NFC Tuning Circuit

• Enter antenna parameter and matching target

• Select the topology of the matching network

• The tool returns component values for the desired design targets

EDAシンボル / フットプリント / 3Dモデル

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**
ST1S32PUR	量産中	DFN8 4x4	インダストリアル	Ecopack2	PDF XML

ST1S32PUR

Package:

DFN8 4x4

Material Declaration**:

(**) 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

サンプル & 購入

Swipe or click the button to explore more details Don't show this again

製品型番

製品ステータス

Budgetary Price (US$)*/Qty

STから購入

Order from distributors

パッケージ

梱包タイプ

RoHS

Country of Origin

ECCN (US)

ECCN (EU)

Operating Temperature (°C) (min)

Operating Temperature (°C) (max)

Available at distributors

販売代理店在庫 ST1S32PUR

販売代理店	地域	在庫	最小発注数量	パートナー企業リンク

販売代理店在庫データ:

販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください

Buy from Distributor

ST1S32PUR 量産中

Budgetary Price (US$)*/Qty:

-

Available at distributors

販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください

Buy Direct at ST

Add Free Sample

パッケージ:

梱包タイプ:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

Swipe or click the button to explore more details Don't show this again

（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。

検索履歴

ブックマーク

Please log in to show your saved searches.

▼