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Maxim产品 - MAX1700介绍

MAX1700 - 1节至3节电池、大功率(1A)、低噪声、升压型DC-DC转换器

MAX1700是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1700是1节至3节电池、大功率(1A)、低噪声、升压型DC-DC转换器，本站介绍了MAX1700的封装应用图解、特点和优点、功能等，并给出了与MAX1700相关的Maxim元器件型号供参考。

MAX1700 - 1节至3节电池、大功率(1A)、低噪声、升压型DC-DC转换器 - DC-DC开关调节器 - 紧凑的高效、低噪声升压转换器，带有增益电路 - 美信半导体

产品概述

The MAX1700/MAX1701 are high-efficiency, low-noise, step-up DC-DC converters intended for use in battery-powered wireless applications. They use a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from battery inputs such as one to three NiCd/NiMH cells or one Li-Ion cell. Both devices have an internal 1A, 130mΩ N-channel MOSFET switch and a 250mΩ P-channel synchronous rectifier.

With their internal synchronous rectifier, the MAX1700/MAX1701 deliver 5% better efficiency than similar nonsynchronous converters. They also feature a pulse-frequency-modulation (PFM) standby mode to improve efficiency at light loads, and a 3µA shutdown mode.

The MAX1700/MAX1701 come in 16-pin QSOP packages (which occupy the same space as an 8-pin SO). The MAX1701 includes two comparators to generate power-good and low-battery warning outputs. It also contains a gain block that can be used to build a linear regulator using an external P-channel pass device.

For higher-power outputs, refer to the MAX1703. For dual outputs (step-up and linear regulator), refer to the MAX1705/MAX1706. For an on-board analog-to-digital converter, refer to the MAX848/MAX849.

The MAX1701 evaluation kit is available to speed design time.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Up to 96% Efficiency
  • 1.1 VIN Guaranteed Start-Up
  • 0.7V to 5.5V Input Range
  • Up to 800mA Output
  • Step-Up Output (adjustable from 2.5V to 5.5V)
  • PWM/PFM Synchronous-Rectified Topology
  • External Clock or Internal 300kHz Oscillator
  • 3µA Logic-Controlled Shutdown
  • Power-Good Output (MAX1701)
  • Low-Battery Comparator (MAX1701)
  • Uncommitted Gain Block (MAX1701)
    • 热门应用
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