STEVAL-ISA055V2

批量生产
Design Win

基于ST1S12XX的0.7 A / 3.3 V同步降压转换器,具有使能功能

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产品概述

描述

This demonstration board is based on the ST1S12 family of synchronous step-down DC-DC converters optimized for powering low-voltage digital cores in HDD (hard disk drive) applications, and is generally used to replace high-current linear solutions when power dissipation may cause high heating of the application environment.

It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V. A high switching frequency of 1.7 MHz allows the use of tiny surface-mount components. A resistor divider to set the output voltage value, an inductor, and two capacitors are required for the adjustable version, while only an inductor and 2 capacitors are needed for the 1.2 V and 1.8 V fixed version.

A low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR surface-mount ceramic capacitors.

The ST1S12 device is thermal protected and current limited to prevent damage due to accidental short-circuit. This family of products is available in the TSOT23-5L package.

  • 所有功能

    • RDS(on) typ. 250 m and 400 m
    • Non switching quiescent current: max 600 μA over temperature range
    • Uses tiny capacitors and inductors
    • Internal soft-start
    • Enable function
    • Step-down current mode PWM (1.7 MHz) DCDC converter
    • 0.7 A output current capability
    • Fixed output voltage 3.3 V
    • Synchronous rectification
    • Typical efficiency: > 90%
    • 3% DC output voltage tolerance

质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-ISA055V2
批量生产
CARD 工业 Ecopack2 -

STEVAL-ISA055V2

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

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

样片和购买

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STEVAL-ISA055V2
Available at distributors

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STEVAL-ISA055V2 批量生产

Budgetary Price (US$)*/Qty:
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包:
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RoHS:
Country of Origin:
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产品型号:

STEVAL-ISA055V2

供应商:

-

核心产品:

ST1S12GR

Board production status:

-

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(*) 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