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RT8075 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT8075 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 11 page  RT8075 1 DS8075-04 April 2011 www.richtek.com Features 2.5V to 5.5V Input Range 1A Output Current 1.25MHz Fixed Frequency PWM Operation 95% Efficiency No Schottky Diode Required 0.6V Reference Allows Low Output Voltage Low Dropout Operation : 100% Duty Cycle Small 10-Lead WDFN Package RoHS Compliant and Halogen Free Applications Portable Instruments Microprocessors and DSP Core Supplies Cellular Phones Wireless and DSL Modems PC Cards Dual 1A, 1.25MHz Synchronous Step-Down Converter General Description The RT8075 is a high efficiency Pulse-Width-Modulated (PWM) dual step-down DC/DC converter. Capable of delivering up to 1A output current over a wide input voltage range from 2.5V to 5.5V, the RT8075 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, PC WLAN card and hand-held devices. Three operating modes are available including : PWM mode, Low Dropout Mode and shut-down mode. 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 RT8075 enters Low Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET. The RT8075 enters 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 the fixed operating frequency of 1.25MHz. The RT8075 is available in the WDFN-10L 3x3 package. Ordering Information Marking 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. Pin Configurations (TOP VIEW) WDFN-10L 3x3 EN1 FB1 LX2 GND LX1 GND VIN1 EN2 FB2 VIN2 9 8 7 1 2 3 4 5 10 11 38=YM DNN RT8075GQW 38= : Product Code YMDNN : Date Code RT8075ZQW 38 : Product Code YMDNN : Date Code 38 YM DNN RT8075 Package Type QW : WDFN-10L 3x3 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) |
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Similar Description - RT8075 |
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