Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

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  • The ST2S08B is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD 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 5.5 V. A high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The device is thermally protected and current limited. The ST2S08B is available in the QFN12L (4 x 4 mm) package.

    Key Features

    • Step-down current mode PWM (1.5 MHz) DC-DC converter
    • Adjustable output voltage from 0.8 V
    • 2 % DC output voltage tolerance
    • Synchronous rectification
    • Integrated current limit
    • Inhibit function
    • Soft-start for start delay of 800 μs typ.
    • Typical efficiency: > 80 % at VOUT= 1.2 V
    • 1.5 A output current capability
    • Non-switching quiescent current: max 1.5 mA over temperature range
    • RDS(ON)150 mΩ (typ.)
    • Uses tiny capacitors and inductors
    • Available in QFN12L (4 x 4 mm)

样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
ST2S08BPQR QFN12 4x4 Tape And Reel
批量生产
0.81 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofST2S08BPQR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 60 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

60

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

ST2S08BPQR

封装

QFN12 4x4

包装类型

Tape And Reel

单价(US$)

0.81*

Distributor availability ofST2S08BPQR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 60 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

60

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

供货状态

批量生产

单价(US$)

0.81

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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      Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
ST2S08BPQR
批量生产
QFN12 4x4 工业 Ecopack2

ST2S08BPQR

Package:

QFN12 4x4

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN12 4x4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.