ST1S10

NRND
Design Win
MySTに保存する

3 A, 900 kHz, monolithic synchronous step-down regulator IC

Download datasheet
Order Direct

製品概要

概要

The ST1S10 is a high efficiency step-down PWM current mode switching regulator capable of providing up to 3 A of output current. The device operates with an input supply range from 2.5 V to 18 V and provides an adjustable output voltage from 0.8 V (VFB) to 0.85 * VIN_SW[VOUT= VFB * (1 + R1/R2)]. It operates either at a 900 kHz fixed frequency or can be synchronized to an external clock (from 400 kHz to 1.2 MHz). The high switching frequency allows the use of tiny SMD external components, while the integrated synchronous rectifier eliminates the need for a Schottky diode. The ST1S10 provides excellent transient response, and is fully protected against thermal overheating, switching overcurrent and output short-circuit.

The ST1S10 is the ideal choice for point of load regulators or LDO pre-regulation.

  • 特徴

    • Step-down current mode PWM regulator
    • Output voltage adjustable from 0.8 V
    • Input voltage from 2.5 V up to 18 V
    • 2% DC output voltage tolerance
    • Synchronous rectification
    • Inhibit function
    • Synchronizable switching frequency from 400 kHz up to 1.2 MHz
    • Internal soft start
    • Dynamic short-circuit protection
    • Typical efficiency: 90%
    • 3 A output current capability
    • Standby supply current: max. 6 μA over temperature range
    • Operative junction temp.: from -40 °C to 125 °C
    続きを読む 一部を表示

回路ダイアグラム

ダウンロード

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 Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

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

推奨製品

おすすめ製品

STEVAL-ISA044V5

3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (Power SO-8)

STEVAL-ISA044V6

3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (DFN)

EDAシンボル / フットプリント / 3Dモデル

STMicroelectronics - ST1S10

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Please select one model supplier :

Start your design with UltraLibrarian
Start your design with SamacSys
Symbols

EDAシンボル

Footprints

フットプリント

3D model

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**
ST1S10PHR
NRND
PowerSO-8 インダストリアル Ecopack2
ST1S10PUR
NRND
DFN8 4x4 インダストリアル Ecopack2

ST1S10PHR

Package:

PowerSO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

NRND

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1S10PUR

Package:

DFN8 4x4

Material Declaration**:

PDF XML
More Info

Marketing Status

NRND

Package

DFN8 4x4

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

サンプル & 購入

（*）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。

製品

検索履歴

ブックマーク

Please log in  to show your saved searches.

▼
戻る
戻る
戻る

ご存知でしたか？

Please provide email

Please enter code

Congratulations!

Simple subscription

Congratulations!

x

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

Invalid code, please check the code sent to your email address and validate again. In case you did not receive any code please select 'I did not receive code'

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

お客様のプロフィール情報をSTが処理する方法、及びお客様の個人データ保護の権利を行使する方法について説明した、STのプライバシー･ステートメントをご確認ください。

以下の製品のお知らせを受け取れます
- ST1S10

You can re-use the validation code to subscribe to another product or application.

Sorry, there was a problem on our servers. Please try again.