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  • The B5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.25 A so it is able to deliver up to 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an HSOP8 package (i.e. SO8 package with exposed frame), that allows to reduce the Rth(JA)down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical RDSonof 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

    主要特性

    • Qualified following the AEC-Q100 requirements (temperature Grade 1), see PPAP for more details.
    • 2 A DC output current
    • Operating input voltage from 4 V to 36 V
    • 3.3 V / (± 2 %) reference voltage
    • Output voltage adjustable from 1.235 V to 35 V
    • Low dropout operation: 100 % duty cycle
    • 250 kHz internally fixed frequency
    • Voltage feedforward
    • Zero load current operation
    • Internal current limiting
    • Inhibit for zero current consumption
    • Synchronization
    • Protection against feedback disconnection
    • Thermal shutdown

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - B5973D

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**
B5973D
批量生产
PowerSO-8 汽车应用 Ecopack2
B5973DTR
批量生产
PowerSO-8 汽车应用 Ecopack2

B5973D

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

B5973DTR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO-8

Grade

Automotive

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.

LED驱动器

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]

LED自定义

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

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
B5973DTR Available at 2 distributors

...的经销商可用性B5973DTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 470 1 马上订购
MOUSER WORLDWIDE 82 1 马上订购

代理商库存报告日期: 2020-10-29

代理商名称

DIGIKEY

库存

470

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

82

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-10-29

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel PowerSO-8 -40 125 PHILIPPINES 1.875 / 1k
B5973D 没有经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube PowerSO-8 -40 125 PHILIPPINES 1.875 / 1k

B5973DTR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.875 / 1k

...的经销商可用性B5973DTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 470 1 马上订购
MOUSER WORLDWIDE 82 1 马上订购

代理商库存报告日期: 2020-10-29

代理商名称

DIGIKEY

库存

470

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

82

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-10-29

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

PowerSO-8

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

1.875 / 1k

Country of Origin

PHILIPPINES

B5973D

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.875 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

PowerSO-8

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

1.875 / 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