RT8010B Datasheet | Richtek

Description The RT8010B is a high-efficiency Pulse-Width-Modulated (PWM) step-down DC-DC converter. Capable of delivering 800m A output current over a wide input voltage range from 2.5V to 4V, the RT8010B 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 RT8010B enters Low-Dropout mode when normal PWM can not provide regulated output voltage by continuously turning on the upper PMOS. The RT8010B enters shut-down mode and consumes less than 0.1μA when 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 WDFN-8L 2x2 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. Features +2.5V to +4V Input Range Output Voltage (Adjustable Output From 0.6V to VIN) 800m A Output Current 95% Efficiency No Schottky Diode Required 1.5MHz Fixed-Frequency PWM Operation Small 8-Lead WDFN Package Ro HS pliant and 100% Lead (Pb)-Free Applications Mobile Phones Personal Information Appliances Wireless and DSL Modems MP3 Players Portable Instruments Pin Configurations (TOP VIEW) EN FB VIN LX 1 2 3 4 8 7 6 PGND PGND PGND AGND WDFN-8L 2x2 Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area, otherwise visit our website for detail. Ordering Information RT8010B Package Type QW : WDFN-8L 2x2 (W-Type) Operating Temperature Range G : Green (Halogen Free with mercial...