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LP3204 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3204 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 11 page  LP3204 LP3204-datasheet Feb.-2006 1 -1 1.5MHz, 800mA, High Efficiency Synchronous PWM Step-Down DC/DC Convert General Description The LP3204 is a constant frequency, current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency. The 2.5V to 5.5V input voltage range makes the LP3204 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and handy-terminals. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. The internal synchronous switch increases efficiency while eliminate the need for an external Schottky diode.The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency of 1.5MHz. This along with small SOT-23-5 package provide small PCB area application. Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection. Ordering Information LP3204 □ - □ □ □ □ Package Type B5: SOT-23-5 Output Voltage: 15: 1.5V 18: 1.8V 25: 2.5V 28: 2.8V AD:Adjust Output Type: A:A-Type B:B-Type Features High Efficiency: 96% 1.5MHz Fixed-Frequency PWM Operation Adjustable Output From 0.6V to VIN 800mA Output Current, 1.1A Peak Current No Schottky Diode Required 100% Duty Cycle Low Dropout Operation Available in SOT23-5 Package Short Circuit and Thermal Protection Over Voltage Protection Low than 1µA Shutdown Current Applications Portable Media Players/MP3 players Cellular and Smart mobile phone PDA DSC Wireless Card Pin Configurations A-Type B-Type Marking Information RoHS compliant and compatible with the current require ments of IPC/JEDEC J-STD-0202. Suitable for use in SnPb or Pb-free soldering processes. |
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Similar Description - LP3204 |
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