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The MP2104 is a 1.7MHz constant frequency,current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The MP2104 can supply 600mA of load current from a 2.5V to 6V input voltage. The output voltage for the MP2104DJ can be regulated as low as 0.6V, while the output voltages of the MP2104DJ-1.5 and MP2104DJ-1.8 are fixed at 1.5V and 1.8V,respectively. The MP2104 can also run at 100% duty cycle for low dropout applications.
The MP2104 is available in a low profile (1mm) 5-pin, TSOT package.
MP2104 Maximum Ratings
VIN to GND ...............................0.3V to +6.5V VSW to GND....................... 0.3V to VIN +0.3V VFB, VEN to GND .......................0.3V to +6.5V SW Peak Current........................................ 1.4A Junction Temperature............................+150°C Lead Temperature (2)............................+260°C Storage Temperature ......... 65°C to +150°C
MP2104 Features
• High Efficiency: Up to 95% • 1.7MHz Constant Switching Frequency • 600mA Available Load Current • 2.5V to 6V Input Voltage Range • Output Voltage as Low as 0.6V • 100% Duty Cycle in Dropout • Current Mode Control • Short Circuit Protection • Thermal Fault Protection • <0.1A Shutdown Current • 1.5V and 1.8V Fixed Output Versions • Space Saving 5-Pin TSOT23 Package
MP2104 Typical Application
• Cellular and Smart Phones • Microprocessors and DSP Core Supplies • PDAs • MP3 Players • Digital Still and Video Cameras • Portable Instruments