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MT3504 Description/概述：
    MT3504是PFM升壓DC-DC轉(zhuǎn)換器。MT3504可以通過(guò)低至0.8V的電源電壓?jiǎn)?dòng)，并能夠在3.3V的輸入電壓下輸出最大200 mA的輸出電流。MT3504有一個(gè)無(wú)pb、節(jié)省空間的低壓3針SOT23、TO92或SOT89封裝。

    The MT3504 is PFM step-up DC-DC converter. The MT3504 can start up by supply voltage as low as 0.8V, and capable of delivering maximum 200mA output current at 3.3V output with 1.8V input voltage. The MT3504  is available in a Pb-free, space-saving low profile 3-pin SOT23 ,TO92 or SOT89 package.

MT3504 Features/特性：

High Efficiency: Up to 97%

Low start-up voltage(load=1mA):0.8V

The converter output voltage can be adjusted from 2.1V to 5.5V (in 0.1V step)

Only Three External Components

Low Quiescent Current: 10μA

Over-Current Protection

Thermal Fault Protection

SOT23-3/SOT89-3/TO92 package

MT3504 Applications/應(yīng)用：

Power source for LED

Power source for a single or dual-cell battery-powered equipments

MT3504 Typical Application：

MT3504 Pin Configuration:

MT3504 Functional Block Diagram：