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LM2832-高频 2.0A 负载 - 降压 DC-DC 稳压器
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TI产品 - LM2832介绍

LM2832 - 高频 2.0A 负载 - 降压 DC-DC 稳压器

LM2832是TI德州仪器公司的一款转换器（集成开关）产品，LM2832是高频 2.0A 负载 - 降压 DC-DC 稳压器，本站介绍了LM2832的封装应用图解、特点和优点、功能等，并给出了与LM2832相关的TI元器件型号供参考。

LM2832 - 高频 2.0A 负载 - 降压 DC-DC 稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM2832 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6 Pin WSON and a 8 Pin eMSOP-PowerPAD package. It 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, the LM2832 is easy to use. The ability to drive 2.0A loads with an internal 150 m? PMOS switch using state-of-the-art 0.5 µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30ns, thus supporting exceptionally high frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.6V. Switching frequency is internally set to 550 kHz, 1.6 MHz, or 3.0 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30 nA. The LM2832 utilizes 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 over-voltage protection.

产品特性

  • Input Voltage Range of 3.0V to 5.5V
  • Output Voltage Range of 0.6V to 4.5V
  • 2.0A Output Current
  • High Switching Frequencies
    •  1.6MHz (LM2832X)
    •  0.55MHz (LM2832Y)
    •  3.0MHz (LM2832Z)
  • 150m? PMOS Switch
  • 0.6V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current Mode, PWM Operation
  • Thermal Shutdown
  • Over Voltage Protection

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