A5973D

批量生产
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最高2 A的降压开关稳压器,用于汽车应用

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产品概述

描述

The A5973D 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 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 RDS(on)of 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 fits the automotive applications requiring the device operation even in cold crank conditions. A pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

  • 所有功能

    • Qualified following the AEC-Q100 requirements (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

电路原理图

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太阳能电池充电器

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EDA符号、封装和3D模型

STMicroelectronics - A5973D

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质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 材料声明**
A5973D013TR
批量生产
PowerSO-8 汽车应用 Ecopack2

A5973D013TR

Package:

PowerSO-8

Material Declaration**:

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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

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A5973D013TR
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经销商的可用性 A5973D013TR

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A5973D013TR 批量生产

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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