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RT8026 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT8026 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 12 page  RT8026 1 DS8026-02 March 2011 www.richtek.com Features Input Voltage Range : 2.7V to 5.5V Adjustable Output Voltage : 1V to VIN Output Current : 1A High Efficiency : up to 95% No Schottky Diode Required 1.5MHz Fixed Frequency PWM Operation Current Limiting Protection Thermal Shutdown Protection Small MSOP-10 Package RoHS Compliant and Halogen Free Applications Mobile Phones Personal Information Appliances Wireless and DSL Modems MP3 Players Portable Instruments 1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter General Description The RT8026 is a high-efficiency Pulse-Width-Modulated (PWM) step-down DC/DC converter. Capable of delivering 1A output current over a wide input voltage range from 2.7V to 5.5V, the RT8026 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources such as cellular phones, PDAs and hand-held devices. Two operating modes are available including : PWM/Low- Dropout autoswitch and shut-down modes. The Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application. The RT8026 enters Low-Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET. The RT8026 enter shut- down mode and consumes less than 0.1 μA when the EN pin is pulled low. The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operating frequency of 1.5MHz. This along with small MSOP-10 package provides 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 Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. Pin Configurations (TOP VIEW) MSOP-10 PGND NC VIN NC GND LX EN FB NC NC 5 6 7 8 4 3 2 10 9 RT8026 Package Type F : MSOP-10 Lead Plating System G : Green (Halogen Free and Pb Free) |
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Similar Description - RT8026 |
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