M5723-33P71U MSOP-10 低噪声LDO稳压器同步降压变换器

General Description
The M5723 consists of a synchronous step-down DC/DC converter and a low-noise LDO regulator. 
The DC/DC converter is operated on current mode architecture. Switching frequency is set at 1.2MHz allowing the use of small surface mount inductor and capacitor.
The internal synchronous switches increase efficiency and eliminate the need for external Schottky diode. It is ideal for system powered by a 1-cell Li-ion battery.

M5723 Features
Buck Converter
■ High Efficiency: Up to 95%
■ Low Quiescent Current: Only 50μA During Operation
■ Internal Soft Start Function
■ 600mA Output Current
■ 2.5V to 6V Input Voltage Range
■ 1.2MHz Switching Frequency
■ No Schottky Diode Required
■ 100% Duty Cycle in Dropout Operation
■ 0.6V Reference Allows Low Output Voltages
■ <1μA Shutdown Current
■ Current Mode Operation for Excellent Line and Load Transient Response
LDO Regulator
■ Ultra Low Output Noise 30μV (rms)
■ Ultra Low 55μA No-Load Supply Current
■ Ultra Low Dropout 70mV @ 50mA Load
■ Guarantee 300mA Output Current
■ Fixed Mode: No External Resistor Network Needed
■ Max. Supply Current in Shutdown Mode < 1μA
■ Stable with Low Cost Ceramic Capacitors
■ Over Temperature Protected
■ RoHS Compliant

Applications
Digital Still and Video Cameras
MP3 Players
Portable Instruments

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