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LM2734 - 产品图解:
LM2734-超薄 SOT23 1A 负载降压 DC-DC 稳压器
LM2734-转换器(集成开关)-DC/DC开关稳压器-电源管理
LM2734-LM2734 Thin SOT 1-A Load Step-Down DC-DC Regulator
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TI产品 - LM2734介绍
LM2734 - 超薄 SOT23 1A 负载降压 DC-DC 稳压器

LM2734是TI公司的一款转换器(集成开关)产品,LM2734是超薄 SOT23 1A 负载降压 DC-DC 稳压器,本页介绍了LM2734的产品说明、应用、特性等,并给出了与LM2734相关的TI元器件型号供参考。

LM2734 - 超薄 SOT23 1A 负载降压 DC-DC 稳压器 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品特性
  • Thin SOT-6 Package
  • 3.0-V to 20-V Input Voltage Range
  • 0.8-V to 18-V Output Voltage Range
  • 1-A Output Current
  • 550-kHz (LM2734Y) and 1.6-MHz (LM2734X) Switching Frequencies
  • 300-mΩ NMOS Switch
  • 30-nA Shutdown Current
  • 0.8-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • WEBENCH® Online Design Tool
  • Thermal Shutdown
  • LM2734XQ and LM2734YQ are AEC-Q100 Grade 1 Qualified and are Manufactured on an Automotive Grade Flow.
产品应用
  • Local Point-of-Load Regulation
  • Core Power in HDDs
  • Set-Top Boxes
  • Battery-Powered Devices
  • USB Powered Devices
  • DSL Modems
  • Notebook Computers
  • Automotive
产品说明

The LM2734 regulator is a monolithic, high-frequency, PWM step-down DC-DC converter in a 6-pin Thin SOT 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 LM2734 regulator 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 550 kHz (LM2734Y) or 1.6 MHz (LM2734X), allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA.

The LM2734 regulator 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.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM2734SOT (6)2.90 mm x 1.60 mm
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