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LM2734Z的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:直流/直流开关稳压器 - 降压稳压器
  • 功能描述:具有轻负载效率的 3V 至 20V 输入电压、1A、高频降压转换器
  • 点击这里打开及下载LM2734Z的技术文档资料
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LM2734Z的产品详情:

The LM2734Z regulator is a monolithic, high-frequency, PWM step-down DC–DC converter assembled in a thick 6-pin SOT and a WSON non-pullback package. The device provides all the active functions to provide local DC–DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH™, the LM2734Z is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world class control circuitry allows for ON-times as low as 13 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 3 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 85% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2734Z uses current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

LM2734Z的优势和特性:
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • 6-pin SOT Package, or 6-Pin WSON Package
  • 3.0-V to 20-V Input Voltage Range
  • 0.8-V to 18-V Output Voltage Range
  • 1-A Output Current
  • 3-MHz Switching Frequency
  • 300-mΩ NMOS Switch
  • 30-nA Shutdown Current
  • 0.8-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • Thermal Shutdown
LM2734Z的参数(英文):
  • Vin (Min) (V)
  • 3
  • Vin (Max) (V)
  • 20
  • Vout (Min) (V)
  • 0.8
  • Vout (Max) (V)
  • 18
  • Iout (Max) (A)
  • 1
  • Iq (Typ) (uA)
  • 1500
  • Switching frequency (Min) (kHz)
  • 2200
  • Switching frequency (Max) (kHz)
  • 3600
  • Features
  • Enable, Light Load Efficiency, Pre-Bias Start-Up
  • Rating
  • Catalog
  • Regulated outputs (#)
  • 1
  • Control mode
  • Current Mode
  • Duty cycle (Max) (%)
  • 85
LM2734Z具体的完整产品型号参数及价格(美元):

LM2734Z的完整型号有:LM2734ZMK/NOPB、LM2734ZMKX/NOPB、LM2734ZSD/NOPB,以下是这些产品的关键参数及官网采购报价:

LM2734ZMK/NOPB,工作温度:-40 to 125,封装:SOT-23-THIN (DDC)-6,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2734ZMK/NOPB的批量USD价格:1.568(1000+)

LM2734ZMKX/NOPB,工作温度:-40 to 125,封装:SOT-23-THIN (DDC)-6,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2734ZMKX/NOPB的批量USD价格:1.307(1000+)

LM2734ZSD/NOPB,工作温度:-40 to 125,封装:WSON (NGG)-6,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2734ZSD/NOPB的批量USD价格:1.307(1000+)

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LM2734Z的评估套件:

LM2734ZEVAL — 超薄 SOT23 1A 负载降压 DC-DC 稳压器

The LM2734 demo board is configured to convert 5V input to 1.8V output at 1A load current using the LM2734X 1.6MHz or the LM2734Y 550kHz step down DC-DC regulator. The tiny low profile thin SOT23 package allows the demo board to be manufactured using less than 1 square inch of a 4-layer printed (...)

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