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ST1S03

批量生产
储存到myST

1.5 A, 1.5 MHz可调步降开关稳压器

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样片和购买
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质量与可靠性
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产品概述

描述

The ST1S03 is a step-down DC-DC converter optimized for powering a low voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 16 V. A high switching frequency (1.5 MHz) allows the use of tiny surface-mount components: as well as the resistor divider to set the output voltage value, only an inductor, a Schottky diode and two capacitors are required. Besides, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermal protected and current limited to prevent damages due to an accidental short-circuit. The ST1S03 device is available in a DFN6D package.

  • 所有功能

    • Step-down current mode PWM (1.5 MHz) DC-DC converter
    • 2% DC output voltage tolerance
    • Internal soft-start for STARTUP current limitation and power on delay of 50 - 100 μs
    • Typical efficiency: > 70% over all operating conditions
    • 1.5 A output current capability
    • Not switching quiescent current: max 2.5 mA over temperature range
    • Switch VDS: max. 350 mV at ISW= 750 mA
    • Uses tiny capacitors and inductors
    • Available in DFN6D 3 x 3 mm package with exposed pad
    阅读更多 阅读较少信息

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    • 产品型号
      		状态
      		描述
      		类型
      		供应商

      STEVAL-ISA042V2

      批量生产

      基于ST1S03的1.5 A / 3.3 V降压DC-DC转换器演示板

      		 DC-DC Converter --
      STEVAL-ISA042V2

      描述:

      基于ST1S03的1.5 A / 3.3 V降压DC-DC转换器演示板

All resources

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Resource title
Latest update

产品规格 (1)

Resource title
Latest update
DS4126 1.5 A, 1.5 MHz adjustable, step-down switching regulator 7.0
26 Nov 2014
26 Nov 2014
DS4126 1.5 A, 1.5 MHz adjustable, step-down switching regulator 7.0

应用手册 (2)

Resource title
Latest update
AN2837 Positive to negative buck-boost converter using ST1S03 asynchronous switching regulator 1.1
13 Sep 2018
13 Sep 2018
AN2837 Positive to negative buck-boost converter using ST1S03 asynchronous switching regulator 1.1
AN2093 ST1S03 buck converters for HDD power supplies 2.4
13 Sep 2018
13 Sep 2018
AN2093 ST1S03 buck converters for HDD power supplies 2.4

技术文档 (1)

Resource title
Latest update
TN1224 Mounting instructions for SMD (surface mounting device) packages 2.2
20 Jan 2020
20 Jan 2020
TN1224 Mounting instructions for SMD (surface mounting device) packages 2.2

Design Notes & Tips (1)

Resource title
Latest update
DN0011 ST1S03 alternative topology: Using a buck in a negative buck-boost configuration 1.2
16 Jul 2019
16 Jul 2019
DN0011 ST1S03 alternative topology: Using a buck in a negative buck-boost configuration 1.2

手册 (1)

Resource title
Latest update
Electric vehicle (EV) ecosystem 1.1
23 Mar 2020
23 Mar 2020
Electric vehicle (EV) ecosystem 1.1

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST1S03

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.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
ST1S03PUR
批量生产
DFN6 3x3 工业 Ecopack2

ST1S03PUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML
More Info

Marketing Status

批量生产

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。

转换器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度（ºC） Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
ST1S03PUR Available at 5 distributors

经销商的可用性ST1S03PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 11521 1 马上订购
RS COMPONENTS EUROPE 9660 1 马上订购
Newark Element14 AMERICA 100 0 马上订购
MOUSER WORLDWIDE 4245 1 马上订购
Farnell Element14 EUROPE 312 1 马上订购

代理商库存报告日期: 2021-04-16

代理商名称

DIGIKEY

库存

11521

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

9660

Min.Order

1

地区

EUROPE 马上订购

Newark Element14

库存

100

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

4245

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

312

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-16

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN6 3x3 0 125 PHILIPPINES 0.566 / 1k

ST1S03PUR

供货状态

批量生产

ECCN (US)

EAR99
更多信息

Budgetary Price (US$)*/Qty

0.566 / 1k

经销商的可用性ST1S03PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 11521 1 马上订购
RS COMPONENTS EUROPE 9660 1 马上订购
Newark Element14 AMERICA 100 0 马上订购
MOUSER WORLDWIDE 4245 1 马上订购
Farnell Element14 EUROPE 312 1 马上订购

代理商库存报告日期: 2021-04-16

代理商名称

DIGIKEY

库存

11521

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

9660

Min.Order

1

地区

EUROPE 马上订购

Newark Element14

库存

100

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

4245

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

312

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2021-04-16

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN6 3x3

Operating Temperature (°C)

(最小值)

0

(最大值)

125

Budgetary Price (US$)* / Qty

0.566 / 1k

Country of Origin

PHILIPPINES

(*) 建议转售单价（美元）仅用于预算用途。如需以当地货币计价的报价，请联系您当地的 ST销售办事处 或我们的 经销商 。

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