ST1S03

批量生产

1.5 A, 1.5 MHz可调步降开关稳压器

下载数据手册
概述
样片和购买
解决方案
资源
工具与软件
质量与可靠性
eDesignSuite
开始
Partner products
Sales Briefcase
  • 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.

    主要特性

    • 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

电路原理图

下载 下载

适合您的资源

评估工具

    • 产品型号

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

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS4126
      1.5 A, 1.5 MHz adjustable, step-down switching regulator
      7.0
      596.11 KB
      PDF
      DS4126

      1.5 A, 1.5 MHz adjustable, step-down switching regulator

    • 描述 版本 文档大小 操作
      AN2837
      Positive to negative buck-boost converter using ST1S03 asynchronous switching regulator
      1.1
      536.05 KB
      PDF
      AN2093
      ST1S03 buck converters for HDD power supplies
      2.4
      232.69 KB
      PDF
      AN2837

      Positive to negative buck-boost converter using ST1S03 asynchronous switching regulator

      AN2093

      ST1S03 buck converters for HDD power supplies

    • 描述 版本 文档大小 操作
      TN1224
      Mounting instructions for SMD (surface mounting device) packages
      2.2
      1.06 MB
      PDF
      TN1224

      Mounting instructions for SMD (surface mounting device) packages

    • 描述 版本 文档大小 操作
      DN0011
      ST1S03 alternative topology: Using a buck in a negative buck-boost configuration
      1.2
      361.3 KB
      PDF
      DN0011

      ST1S03 alternative topology: Using a buck in a negative buck-boost configuration

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF

      Electric vehicle (EV) ecosystem

质量与可靠性

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
ST1S03PUR
批量生产
DFN6 3x3 Industrial Ecopack2

ST1S03PUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

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

eDesignSuite

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
封装
包装类型
供货状态
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
ST1S03PUR Available at 6 distributors

...的经销商可用性ST1S03PUR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 17544 1 马上订购
COMPEL EUROPE 888 1 马上订购
RS COMPONENTS EUROPE 9770 1 马上订购
Newark Element14 AMERICA 100 0 马上订购
MOUSER WORLDWIDE 5789 1 马上订购
Farnell Element14 EUROPE 887 1 马上订购

代理商库存报告日期: 2020-07-06

代理商名称

DIGIKEY

Stock

17544

Min.Order

1

地区

WORLDWIDE 马上订购

COMPEL

Stock

888

Min.Order

1

地区

EUROPE 马上订购

RS COMPONENTS

Stock

9770

Min.Order

1

地区

EUROPE 马上订购

Newark Element14

Stock

100

Min.Order

0

地区

AMERICA 马上订购

MOUSER

Stock

5789

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

Stock

887

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-07-06

获取样片 DFN6 3x3 Tape And Reel
批量生产
EAR99 PHILIPPINES 0.566 / 1k

ST1S03PUR

封装

DFN6 3x3

包装类型

Tape And Reel

Budgetary Price (US$)*/Qty

0.566 / 1k

...的经销商可用性ST1S03PUR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 17544 1 马上订购
COMPEL EUROPE 888 1 马上订购
RS COMPONENTS EUROPE 9770 1 马上订购
Newark Element14 AMERICA 100 0 马上订购
MOUSER WORLDWIDE 5789 1 马上订购
Farnell Element14 EUROPE 887 1 马上订购

代理商库存报告日期: 2020-07-06

代理商名称

DIGIKEY

Stock

17544

Min.Order

1

地区

WORLDWIDE 马上订购

COMPEL

Stock

888

Min.Order

1

地区

EUROPE 马上订购

RS COMPONENTS

Stock

9770

Min.Order

1

地区

EUROPE 马上订购

Newark Element14

Stock

100

Min.Order

0

地区

AMERICA 马上订购

MOUSER

Stock

5789

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

Stock

887

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-07-06

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.566 / 1k

ECCN (US)

EAR99

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