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LM3478Q-Q1 - 产品图解：
LM3478Q-Q1-High Efficiency Low-Side N-Channel Controller for Switching Regulators
LM3478Q-Q1-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 - LM3478Q-Q1介绍

LM3478Q-Q1 - High Efficiency Low-Side N-Channel Controller for Switching Regulators

LM3478Q-Q1是TI德州仪器公司的一款控制器（外部开关）产品，LM3478Q-Q1是High Efficiency Low-Side N-Channel Controller for Switching Regulators，本站介绍了LM3478Q-Q1的封装应用图解、特点和优点、功能等，并给出了与LM3478Q-Q1相关的TI元器件型号供参考。

LM3478Q-Q1 - High Efficiency Low-Side N-Channel Controller for Switching Regulators - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • LM3478Q-Q1 in VSSOP-8 package is AEC-Q100 Qualified and Manufactured on an Automotive Grade Flow
  • 8-lead VSSOP-8 and SOIC-8 packages
  • 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
产品应用
  • Distributed Power Systems
  • Battery Chargers
  • Offline Power Supplies
  • Telecom Power Supplies
  • Automotive Power Systems
  • Wide Supply Voltage Range of 2.97 V to 40 V
  • 100-kHz to 1-MHz Adjustable Clock Frequency
  • ±2.5% (Over Temperature) Internal Reference
  • 10-µA Shutdown Current (Over Temperature)
产品说明

The LM3478 is a versatile Low-Side N-Channel MOSFET controller for switching regulators. It is suitable for use in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc. Moreover, the LM3478 can be operated at extremely high switching frequency in order to reduce the overall solution size. The switching frequency of the LM3478 can be adjusted to any value between 100 kHz and 1 MHz by using a single external resistor. 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 LM3478 has built in features such as thermal shutdown, short-circuit protection, over voltage protection, etc. 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)
LM3478SOIC (8)4.90 mm x 3.91 mm
VSSOP (8) 3.00 mm x 3.00 mm
LM3478Q-Q1VSSOP (8)3.00 mm x 3.00 mm
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