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  • 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. For the adjustable version, a resistor divider to set the output voltage value, an inductor, and two capacitors are required. 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.

    主要特性

    • RDS(on) typ. 250 m and 400 m
    • Not 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 of 1.2 V
    • Synchronous rectification
    • Typical efficiency: > 90%
    • 3% DC output voltage tolerance

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-ISA055V1
批量生产
CARD 工业 Ecopack2 -

STEVAL-ISA055V1

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

产品型号
从分销商订购
从ST订购
核心产品
供货状态
供应商
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-ISA055V1 Available at 2 distributors

...的经销商可用性STEVAL-ISA055V1

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5 1 马上订购
P&S ASIA/PACIFIC 1 1 马上订购

代理商库存报告日期: 2020-10-19

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE 马上订购

P&S

库存

1

Min.Order

1

地区

ASIA/PACIFIC 马上订购

代理商库存报告日期: 2020-10-19

Buy Direct ST1S12GR
批量生产
- EAR99 NEC ITALY - 46.0 / 1

STEVAL-ISA055V1

核心产品

ST1S12GR

供货状态

批量生产

Budgetary Price (US$)*/Qty

46.0 / 1

...的经销商可用性STEVAL-ISA055V1

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5 1 马上订购
P&S ASIA/PACIFIC 1 1 马上订购

代理商库存报告日期: 2020-10-19

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE 马上订购

P&S

库存

1

Min.Order

1

地区

ASIA/PACIFIC 马上订购

代理商库存报告日期: 2020-10-19

供应商

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

46.0 / 1

Country of Origin

ITALY

Board production status

-

(*) 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