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C1608JB0J475M Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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C1608JB0J475M Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 11 page  RT8035 ® DS8035-05 October 2012 www.richtek.com 1 Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. © Features 2.5V to 5.5V Input Range 800mA 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 800mA, 1.25MHz Synchronous Step-Down Converter General Description The RT8035 is a high-efficiency Pulse-Width-Modulated (PWM) dual step-down DC/DC converter. Capable of delivering up to 800mA output current over a wide input voltage range from 2.5V to 5.5V, the RT8035 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 RT8035 enters Low-Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET. The RT8035 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 RT8035 is available in the WDFN-10L 3x3 package. Ordering Information Marking Information 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 GD=YM DNN GD= : Product Code YMDNN : Date Code RT8035GQW GD : Product Code YMDNN : Date Code RT8035ZQW GD YM DNN RT8035 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) 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. |
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