LTC3401 - LTC3401是1A, 3MHz Micropower Synchronous Boost Converter

LTC3401是LINEAR凌力尔特公司的一款微功率升压产品，LTC3401是LTC3401是1A, 3MHz Micropower Synchronous Boost Converter，本站介绍了LTC3401的封装应用图解、特点和优点、功能等，并给出了与LTC3401相关的LINEAR元器件型号供参考。

LTC3401 - LTC3401是1A, 3MHz Micropower Synchronous Boost Converter - 微功率升压 - 电源管理 - 凌力尔特

LTC3401 - 1A, 3MHz Micropower Synchronous Boost Converter

LTC3401 - 1A, 3MHz Micropower Synchronous Boost Converter - Linear Technology（凌力尔特）

功能描述

The LTC3401 is a high efficiency, fixed frequency, step-up DC/DC converter that operates from an input voltage below 1V. The device includes a 0.16 Ohms N-channel MOSFET switch and a 0.18 Ohms P-channel synchronous rectifier. Switching frequencies up to 3MHz are programmed with an external timing resistor and the oscillator can be synchronized to an external clock. An external Schottky diode is optional but will slightly improve efficiency.

Quiescent current is only 38μA in Burst Mode operation, maximizing battery life in portable applications. Burst Mode operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin has either a clock or is driven low, then fixed frequency switching is enabled.

Other features include 1μA shutdown, antiringing control, open-drain power good output, thermal shutdown and current limit. The LTC3401 is available in the 10-lead thermally enhanced MSOP package. Higher current applications should use the 2A rated LTC3402 synchronous boost converter. Applications that require VOUT < 2.6V should use the LTC3423.

特点

Synchronous Rectification: Up to 97% Efficiency

1A Switch Current Rating

Fixed Frequency Operation Up to 3MHz

Wide Input Range: 0.5V to 5V (Operating)

Very Low Quiescent Current: 38μA (Burst Mode? Operation)

2.6V to 5V Adjustable Output Voltage

0.85V (Typ) Start-Up Voltage

No External Schottky Diode Required (VOUT < 4.3V)

Synchronizable Switching Frequency

Burst Mode Enable Control

Antiringing Control Reduces Switching Noise