L7983

批量生产
Education

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

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样片和购买
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质量与可靠性
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  • The L7983 device is a step-down monolithic switching regulator able to deliver up to 300 mA DC based on peak current mode architecture.

    The output voltage adjustability ranges from 0.85 V to VIN. The wide input voltage range and adjustable UVLO threshold meet the specification for the 12 V, 24 V and 48 V industrial bus standards.
    The “Low Consumption Mode” (LCM) is designed for applications active during idle mode, so it maximizes the efficiency at light load with controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency constant overload current range, meeting the low noise application specification. The L7983 supports dynamic LCM to LNM transition.
    The soft-start time is internally fixed and the output voltage supervisor manages the reset phase for any digital load (microcontroller, FPGA, etc.).
    The internal compensation network features high noise immunity, simple design and saves on the component cost.
    The RST open collector output can also implement output voltage sequencing during the power-up phase.
    The synchronous rectification, designed for high efficiency at medium - heavy load, and the high switching frequency capability make the size of the application compact.
    Pulse-by-pulse current sensing on both power elements implements an effective constant current protection.

    主要特性

    • 3.5 V to 60 V operating input voltage
    • Fixed output voltage (3.3 V and 5 V) or adjustable from 0.85 V to VIN
    • 300 mA DC output current
    • Dynamic low consumption mode to low noise mode selection
    • 10 µA operating quiescent current (L7983PU33R, VIN > 24 V, LCM)
    • 2.3 µA shutdown current
    • 200 kHz to 2.2 MHz programmable switching frequency
    • Optional spread spectrum (dithering)
    • Internal soft-start
    • Enable / adjustable UVLO threshold
    • Synchronization to external clock
    • Internal compensation network
    • Internal current limiting
    • Overvoltage protection
    • Output voltage sequencing
    • Thermal shutdown

特别推荐

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-L7983ADJ

      批量生产

      12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator

      电源和功率转换器解决方案评估板 ST
      STEVAL-L7983ADJ

      描述:

      12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator

      STEVAL-L7983V33

      批量生产

      3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R

      电源和功率转换器解决方案评估板 ST
      STEVAL-L7983V33

      描述:

      3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R

      STEVAL-L7983V50

      批量生产

      5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator

      电源和功率转换器解决方案评估板 ST
      STEVAL-L7983V50

      描述:

      5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator

EDA Symbols, Footprints and 3D Models

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.

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**
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**:

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**:

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**:

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

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
L7983PUR Available at 1 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
MOUSER WORLDWIDE 890 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

MOUSER

库存

890

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN 3X3X0.8 10L PITCH 0.5 - - CHINA 1.0 / 1k
L7983PU50R Available at 2 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
DIGIKEY WORLDWIDE 1000 1 马上订购
MOUSER WORLDWIDE 997 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

DIGIKEY

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

997

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN 3X3X0.8 10L PITCH 0.5 - - CHINA 1.0 / 1k
L7983PU33R Available at 2 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
DIGIKEY WORLDWIDE 1000 1 马上订购
MOUSER WORLDWIDE 1000 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

DIGIKEY

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN 3X3X0.8 10L PITCH 0.5 - - CHINA 1.0 / 1k

L7983PUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

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
MOUSER WORLDWIDE 890 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

MOUSER

库存

890

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN 3X3X0.8 10L PITCH 0.5

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

CHINA

L7983PU50R

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

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
DIGIKEY WORLDWIDE 1000 1 马上订购
MOUSER WORLDWIDE 997 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

DIGIKEY

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

997

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN 3X3X0.8 10L PITCH 0.5

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

CHINA

L7983PU33R

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.0 / 1k

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
DIGIKEY WORLDWIDE 1000 1 马上订购
MOUSER WORLDWIDE 1000 1 马上订购

代理商库存报告日期: 2021-01-22

代理商名称

DIGIKEY

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

1000

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-01-22

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN 3X3X0.8 10L PITCH 0.5

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.0 / 1k

Country of Origin

CHINA

(*) 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