L7983

批量生产
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60 V 300 mA synchronous step-down switching regulator with 10 µA quiescent current

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产品概述

描述

L7983器件是一款降压型单片式开关稳压器,能够基于峰值电流模式架构提供高达300 mA DC。

输出电压可调范围为0.85V至VIN。较宽的输入电压范围和可调节的UVLO阈值符合12 V、24 V和48 V工业总线标准规范。

低功耗模式”(LCM)是专为在空闲模式下处于活动状态的应用而设计的,因此它可以在输出电压纹波受控的轻负载下最大限度地提高效率。“低噪声模式”(LNM)使开关频率在负载电流范围内保持恒定,以满足低噪声应用规范。L7983支持动态LCM至LNM的过渡。

软启动时间为内部固定,且输出电压监控器管理任何数字负载(微控制器、FPGA等)的复位阶段。

内部补偿网络具有较高的抗噪声能力,设计简单且节省组件成本。

RST开路集电极输出还可在开机阶段实现输出电压排序。

同步整流设计用于中重负载时的高效率,高开关频率功能使应用程序的大小变得紧凑。

两个功率元件上的脉冲电流感应实现了有效的恒流保护。

  • 所有功能

    • 3.5 V至60 V 工作输入电压
    • 固定输出电压(3.3 V和5 V)或可在0.85 V~VIN之间调节
    • 300 mA DC输出电流
    • 动态低功耗模式至低噪声模式选择
    • 10 µA工作静态电流(L7983PU33R,VIN > 24 V,LCM)
    • 2.3 µA关断电流
    • 可编程开关频率为200 kHz至2.2 MHz。
    • 可选扩频(抖动)
    • 内部软启动
    • 启用/可调UVLO阈值
    • 与外部时钟同步
    • 内部补偿网络
    • 内部电流限制
    • 过电压保护
    • 输出电压排序
    • 过热保护

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

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Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
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太阳能电池充电器

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
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Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
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AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
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Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
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STPOWER Studio

Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
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Estimate

Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
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Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass

Comparators

Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
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Low side Current Sensing

Returns circuit component values
Provides current error graphs

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
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NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets

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EDA符号、封装和3D模型

STMicroelectronics - L7983

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.

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Symbols

符号

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封装

3D model

3D模型

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**
L7983PU33R
批量生产
DFN 3X3X0.8 10L PITCH 0.5 工业 Ecopack2
L7983PU50R
批量生产
DFN 3X3X0.8 10L PITCH 0.5 工业 Ecopack2
L7983PUR
批量生产
DFN 3X3X0.8 10L PITCH 0.5 工业 Ecopack2

L7983PU33R

Package:

DFN 3X3X0.8 10L PITCH 0.5

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN 3X3X0.8 10L PITCH 0.5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7983PU50R

Package:

DFN 3X3X0.8 10L PITCH 0.5

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN 3X3X0.8 10L PITCH 0.5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7983PUR

Package:

DFN 3X3X0.8 10L PITCH 0.5

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN 3X3X0.8 10L PITCH 0.5

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

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产品型号
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包装类型
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
L7983PUR
Available at distributors

经销商的可用性 L7983PUR

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
L7983PU50R
Available at distributors

经销商的可用性 L7983PU50R

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
L7983PU33R
Available at distributors

经销商的可用性 L7983PU33R

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

L7983PUR 批量生产

Budgetary Price (US$)*/Qty:
-
包:
包装类型:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

产品型号:

L7983PUR

代理商名称

代理商库存报告日期:

L7983PU50R 批量生产

Budgetary Price (US$)*/Qty:
-
包:
包装类型:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

产品型号:

L7983PU50R

代理商名称

代理商库存报告日期:

L7983PU33R 批量生产

Budgetary Price (US$)*/Qty:
-
包:
包装类型:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

产品型号:

L7983PU33R

代理商名称

代理商库存报告日期:

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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