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AC/DC & DC/DC converters (integrated FET)

LM34919B-Q1

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汽车类 2x1.75mm、6V 至 40V 宽输入电压、600mA、2.6MHz 恒定导通时间非同步降压稳压器

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TPS560430-Q1 正在供货 通过汽车认证的 SIMPLE SWITCHER® 4V 至 36V、600mA 同步降压转换器 PFM and PWM selectable options in an SOT-23 package.

LM34919B-Q1

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产品详情

Iout (max) (A) 0.6 Vin (min) (V) 6 Vin (max) (V) 40 Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 35 Rating Automotive Operating temperature range (°C) -40 to 125
Iout (max) (A) 0.6 Vin (min) (V) 6 Vin (max) (V) 40 Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 35 Rating Automotive Operating temperature range (°C) -40 to 125
DSBGA (YPA) 10 3.9375 mm² 2.25 x 1.75
  • AEC-Q100 Grade 1 Qualified
    (–40°C to 125°C)
  • Maximum Switching Frequency: 2.6 MHz
    (VIN=14V,Vo=3.3V)
  • Input Voltage Range: 6V to 40V
  • Integrated N-Channel Buck Switch
  • Integrated Startup Regulator
  • No loop compensation Required
  • Ultra-Fast transient Response
  • Operating frequency remains constant
    with Load Current and Input Voltage
  • Maximum Duty Cycle Limited During Startup
  • Adjustable Output Voltage
  • Valley Current Limit At 0.64A
  • Precision Internal Reference
  • Low Bias Current
  • Highly Efficient Operation
  • Thermal Shutdown
  • 10-Pin DSBGA Package
  • AEC-Q100 Grade 1 Qualified
    (–40°C to 125°C)
  • Maximum Switching Frequency: 2.6 MHz
    (VIN=14V,Vo=3.3V)
  • Input Voltage Range: 6V to 40V
  • Integrated N-Channel Buck Switch
  • Integrated Startup Regulator
  • No loop compensation Required
  • Ultra-Fast transient Response
  • Operating frequency remains constant
    with Load Current and Input Voltage
  • Maximum Duty Cycle Limited During Startup
  • Adjustable Output Voltage
  • Valley Current Limit At 0.64A
  • Precision Internal Reference
  • Low Bias Current
  • Highly Efficient Operation
  • Thermal Shutdown
  • 10-Pin DSBGA Package

The LM34919B Step-Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This buck regulator contains an N-Channel Buck Switch, and is available in a 10-pin DSBGA package. The constant on-time feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.

The LM34919B Step-Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This buck regulator contains an N-Channel Buck Switch, and is available in a 10-pin DSBGA package. The constant on-time feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM34919B Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator 数据表 (Rev. B) 2013年 7月 2日
EVM 用户指南 AN-2016 LM34919B Evaluation Board (Rev. A) 2013年 4月 25日

设计和开发

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评估板

LM34919BEVAL — LM34919BEVAL 评估板

The LM34919BEVAL evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 3.3V output over an input range of 6V to 24V. The circuit delivers load currents to 600 mA, with current (...)

用户指南: PDF
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LM34919BQUICK-CALC — LM34919B 快速入门计算器

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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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