L3751

批量生产
Design Win

6V至75V的宽输入电压同步降压控制器

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产品概述

描述

The 6 V to 75 V wide input voltage range L3751 synchronous buck controller features extreme voltage conversion ratio over switching frequency range (100 kHz - 1 MHz) thanks to 40 nsec minimum conduction time. The diode emulation (DEM) implements pulse skipping mode that maximizes the efficiency at light-load giving controlled output voltage ripple. The forced PWM (FPWM) over the load range makes the switching frequency constant and minimizes the output voltage ripple.
The Power Good open collector output validates the regulated output voltage for monitoring and it is useful to implement output voltage sequencing for digital ICs during the power-up phase.
An embedded gate driver minimizes the number of external components and it is designed for standard VTH MOSFET.
Embedded protections–output overcurrent, input voltage UVLO, internal voltage monitoring, thermal shutdown - feature controlled and safe operation for critical environments in telecom, networking and industrial applications.
The device is available in a QFN 20 leads 3.5 x 4.5 mm package with wettable flanks.
  • 所有功能

    • Wide 6 V to 75 V input voltage range
    • Adjustable output voltage from 0.8 V to 60 V
    • 100 kHz - 1 MHz switching frequency range
    • 40 nsec minimum on-time for extreme duty ratio
    • Low dropout operation during line transient
    • Adjustable soft-start or input voltage tracking
    • Pulse skipping or forced PWM operation at light load
    • Synchronization
    • Adjustable precision enable
    • Power Good open collector output validates VOUT
    • 7.5 V gate drivers for standard VTH MOSFETs
    • Constant current protection with hiccup mode
    • Precision or lossless programmable current sensing
    • Improved line transient response
    • Input voltage undervoltage lockout
    • Internal voltage monitoring
    • Thermal protection
    • Operating junction temperature range: -40 °C to 150 °C

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Power Supply Design Tool

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Supports various PCB configurations
Power Supply
Choose type:
Input Specification
Input Specification
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
V
this option is required
A
this option is required
Output Power: 0

EDA符号、封装和3D模型

STMicroelectronics - L3751

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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**
L3751PUR
批量生产
QFN 3.5X4.5X1.0 20L PITCH 0.50 工业 Ecopack2

L3751PUR

Package:

QFN 3.5X4.5X1.0 20L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN 3.5X4.5X1.0 20L PITCH 0.50

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
Order from distributors
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
L3751PUR Available at 1 distributors

经销商的可用性L3751PUR

代理商名称
地区 库存 最小订购量 第三方链接
YOSUN ASIA/PACIFIC 20 1 Buy from Distributor

代理商库存报告日期: 2022-07-05

代理商名称

YOSUN

库存

20

Min.Order

1

地区

ASIA/PACIFIC Buy from Distributor

代理商库存报告日期: 2022-07-05

批量生产
EAR99 NEC Tape and Reel QFN 3.5X4.5X1.0 20L PITCH 0.50 - - CHINA

L3751PUR 批量生产

封装:
QFN 3.5X4.5X1.0 20L PITCH 0.50
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

L3751PUR

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

经销商的可用性L3751PUR

代理商名称
地区 库存 最小订购量 第三方链接
YOSUN ASIA/PACIFIC 20 1 Buy from Distributor

代理商库存报告日期: 2022-07-05

代理商名称

YOSUN

库存

20

Min.Order

1

地区

ASIA/PACIFIC Buy from Distributor

代理商库存报告日期: 2022-07-05

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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