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In this application note, a theoretical derivation of ripple current to average current ratio, also called ripple factor, is introduced to get inductor size equation, which is helpful for capacitor design as well as the total converter design.
Design Support ▶ Technical Documentation ▶ Current Ripple Factor of a Buck Converter
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The RT1710S is a Type-C cable ID for active and passive cables.All USB Full-Featured Type-C cables shall be electronically marked. Electronically marked cables shall support USB Power Delivery Structured VDM Discover Identity command directed to SOP'. This provides a method to determine the characteristics of the cable, e.g. its...
Design Support ▶ Design Reference ▶ EVB_RT1710SGQW
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The RT2568 is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT2568 possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 10μF x 3 ceramic output capacitor. The RT2568 supports remote ...
Design Support ▶ Design Reference ▶ EVB_RT2568GQW
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The RT4531 is a dual-channel current source with high efficiency asynchronous boost converter for backlight application. The RT4531 has built-in 1.5A/36V power MOSFET and two high current-matching capability current sink, so RT4531 can drives up 10s2p white LED. The RT4531 can allow very low voltage headroom control, therefore t...
Design Support ▶ Design Reference ▶ EVB_RT4531WSC
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The RT8092 is a Peak-Current Mode Pulse-Width-Modulated (PWM) step-down DC/DC converter with I2C control interface. Capable of delivering 4A continuing output current over a wide input voltage range from 2.5V to 5.5V, the RT8092 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from...
Design Support ▶ Design Reference ▶ EVB_RT8092URWSC
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The RT8498 is a current-mode LED driver supporting wide input voltage range from 3V to 18V and output voltage up to 18V. With internal 350kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized. High efficiency is achieved by a 100mV current sensing control. LED dimming control...
Design Support ▶ Design Reference ▶ EVB_RT8498GE
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The RT9069 is a low-dropout (LDO) voltage regulators with enable function offering the benefits of high input voltage, low-dropout voltage, low-power consumption, and miniaturized packaging. The features of low quiescent current as low as 2μA and zero disable current is ideal for powering the battery equipment to a longer servic...
Design Support ▶ Design Reference ▶ EVB_RT9069-33GQU
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The RT9088 is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT9088 possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 30μF ceramic output capacitor. The RT9088 supports remote sens...
Design Support ▶ Design Reference ▶ EVB_RT9088GQW
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The RT9089A is a sink/source tracking termination regulator. It is specifically designed for low-cost and lowexternal component count systems. The RT9089A possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 10μF ceramic output capacitor. The RT9089A supports remote se...
Design Support ▶ Design Reference ▶ EVB_RT9089AGQW
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Anyone owning a smartphone will agree that longer battery life and shorter charging times are key features for portable devices. But do you know what technology is behind the powerful charging systems in today’s smartphones, and what are the limiting factors in the quest for ever faster charging? In order to quickly charge large...
About Richtek ▶ Product Newsletters ▶ Newsletter Issue 19
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