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LM3488 - 产品图解：
LM3488-用于开关稳压器的 40V 宽输入电压低侧 N 通道控制器
LM3488-控制器（外部开关）-DC/DC开关稳压器-电源管理
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TI产品 - LM3488介绍

LM3488 - 用于开关稳压器的 40V 宽输入电压低侧 N 通道控制器

LM3488是TI德州仪器公司的一款控制器（外部开关）产品，LM3488是用于开关稳压器的 40V 宽输入电压低侧 N 通道控制器，本站介绍了LM3488的封装应用图解、特点和优点、功能等，并给出了与LM3488相关的TI元器件型号供参考。

LM3488 - 用于开关稳压器的 40V 宽输入电压低侧 N 通道控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • LM3488-Q1 is AEC-Q100 Qualified and Manufactured on an Automotive-Grade Flow
  • 8-Lead VSSOP Package
  • Internal Push-Pull Driver With 1-A Peak Current Capability
  • Current Limit and Thermal Shutdown
  • Frequency Compensation Optimized With a Capacitor and a Resistor
  • Internal Soft-Start
  • Current Mode Operation
  • Undervoltage Lockout With Hysteresis
  • Key Specifications:
    • Wide Supply Voltage Range of 2.97 V to 40 V
    • 100-kHz to 1-MHz Adjustable and Synchronizable Clock Frequency
    • ±1.5% (Overtemperature) Internal Reference
    • 5-µA Shutdown Current (Overtemperature)
产品应用
  • Distributed Power Systems
  • Notebook, PDA, Digital Camera, and other Portable Applications
  • Offline Power Supplies
  • Set-Top Boxes
产品说明

The LM3488 is a versatile low-side N-FET high-performance controller for switching regulators. This device is suitable for use in topologies requiring low-side FET, such as boost, flyback, or SEPIC. Moreover, the LM3488 can be operated at extremely high switching frequency to reduce the overall solution size. The switching frequency of LM3488 can be adjusted to any value from 100 kHz to 1 MHz by using a single external resistor or by synchronizing it to an external clock. Current mode control provides superior bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be programmed with a single external resistor.

The LM3488 has built-in features such as thermal shutdown, short-circuit protection, and overvoltage protection. Power-saving shutdown mode reduces the total supply current to 5 µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM3488VSSOP (8)3.00 mm × 3.00 mm
LM3488-Q1
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