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MAX77813 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX77813 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 30 page  General Description The MAX77813 is a high-efficiency step-up/step-down (buck-boost) converter targeted for single-cell Li+/Li-ion battery powered applications. The device maintains a regulated output voltage from 2.6V to 5.14V across an input voltage range of 2.3V to 5.5V. The device supports up to 2A of output current in boost mode and up to 3A in buck mode. The device seamlessly transitions between buck and boost modes. A unique control algorithm allows high- efficiency, outstanding load, and line transient response. Dedicated enable and power-OK pins allow simple hard- ware control. An I2C serial interface is optionally used for dynamic voltage scaling, system power optimization, and fault read-back. The device supports two inductor current limit options selected by the ILIM pin. The MAX77813 is available in a 20-bump, 1.83mm x 2.13mm wafer-level package (WLP). Applications ● Single-Cell Li+/Li-ion Battery Powered Devices ● Handheld Scanners, Mobile Payment Terminals, Security Cameras ● AR/VR Headsets Features and Benefits ● VIN Range: 2.30V to 5.5V ● VOUT Range: 2.60V to 5.14V (I2C Programmable in 20mV Steps) ● Up to 2A Output Current in Boost Mode (VIN = 3.0V, VOUT = 3.4V, ILIM = High) ● Up to 3A Output Current in Buck Mode (ILIM = High) ● Up to 97% Peak Efficiency ● SKIP Mode for Optimal Light Load Efficiency ● 55µA (Typ) Low Quiescent Current ● 3.4MHz High Speed I2C Serial Interface ● Input Current Limit Selection Pin ● Power-OK Output ● 2.5MHz Switching Frequency ● Protection Features • Soft-Start • Thermal Shutdown • Overvoltage Protection • Overcurrent Protection ● 1.827mm x 2.127mm, 20-Bump WLP Ordering Information appears at end of data sheet. 19-8238; Rev 2; 3/19 MAX77813 5.5V Input, 2A, High-Efficiency Buck-Boost Converter Typical Application Circuit 1μH 10μF LX1 VSYS SDA LX2 IN OUT OUTS SCL PGND VIO ENABLE EN 1μF DC INPUT 2.3V TO 5.5V POWER-OK 47μF POK ILIM SERIAL HOST MAX77813 CURRENT LIMIT SELECT VOUT 2.6V TO 5.14V 2A (BOOST MODE) 3A (BUCK MODE) HIGH-EFFICIENCY BUCK-BOOST CONVERTER WITH OPTIONAL I2C CONTROL IN TINY 20-BUMP WLP 500mV/div 20mV/div 100µs/div BOOST TO BUCK LINE TRANSIENT RESPONSE VIN IOUT = 1.5A VOUT= 3.3V BOOST MODE BOOST MODE BUCK MODE VOUT 3.4V 2.9V Click here for production status of specific part numbers. |
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