L5973AD - 最高1.5 A步降开关稳压器 - 意法半导体STMicroelectronics

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产品概述

描述

The L5973AD is a step down monolithic power switching regulator with a switch current limit of 2A so it is able to deliver more than 1.5 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 SO8 package with exposed frame, that allows to reduce the R_thJA down to approximately 40 °C/W.

The device uses an internal P-Channel D-MOS transistor (with a typical of 200 mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency.

An internal oscillator fixes the switching frequency at 500 kHz to minimize the size of external components.

Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications.

Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

所有功能
Inhibit for zero current consumption

Internal current limiting

Protection against feedback disconnection

Synchronization

Thermal shutdown

Voltage feedforward

500 kHz Internally fixed frequency
2 A Internal switch

3.3 V / (±2 %) reference voltage

Operating input voltage from 4 V to 36 V

Low dropout operation: 100 % duty cycle

Zero load current operation

Output voltage adjustable from 1.235 V to 35 V
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太阳能电池充电器

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Power Management Design Center

Digital Power Workbench

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EDA符号、封装和3D模型

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	资源标题	版本	更新时间

SPICE models (1)

	资源标题	版本	更新时间
ZIP	X597X Pspice model		22 Sep 2016	22 Sep 2016 X597X Pspice model

质量与可靠性

产品型号	Marketing Status	包	等级规格	符合RoHS级别	材料声明**
L5973AD	批量生产	PowerSO-8	工业	Ecopack2	PDF XML
L5973ADTR	批量生产	PowerSO-8	工业	Ecopack2	PDF XML

L5973AD

Package:

PowerSO-8

Material Declaration**:

L5973ADTR

Package:

PowerSO-8

Material Declaration**:

(**) 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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Available at distributors

经销商的可用性 L5973AD

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经销商的可用性 L5973ADTR

代理商名称	地区	库存	最小订购量	第三方链接

代理商库存报告日期:

无法联系到经销商，请联系我们的销售办事处

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L5973AD 批量生产

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L5973ADTR 批量生产

Budgetary Price (US$)*/Qty:

-

Available at distributors

无法联系到经销商，请联系我们的销售办事处

Buy Direct at ST

Add Free Sample

包:

包装类型:

RoHS:

Country of Origin:

ECCN (US):

ECCN (EU):

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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。

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