Analog Devices / Maxim Integrated MAX77813 High-Efficiency Buck-Boost Converters
Analog Devices MAX77813 High-Efficiency Buck-Boost Converters are designed for single-cell Li-ion battery-powered applications. The MAX77813 features an input voltage range from 2.60V to 5.14V and supports up to 2A and 3A of output current in boost and buck modes. The device offers a longer operation time due to the peak efficiency of 97%. The MAX77813 allows seamless transitions between buck and boost modes. The device provides a unique control algorithm enabling high efficiency and outstanding performances in line/load transient responses. The MAX77813 offers design flexibility to optimize performance using the I2C-compatible serial interface. The device supports two input current limits selected by ILIM logic input. The featured output voltage can be dynamically adjusted for finer control of system power consumption.
Features
- 2.30V to 5.5V VIN range
- 2.60V to 5.14V (I2C Programmable in 20mV Step) VOUT range
- 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
- Short Circuit protection
- 1.827mm x 2.127mm, 20-bump WLP
Applications
- Handheld scanners
- Mobile payment terminals
- Security cameras
- AR/VR headsets
- Single-cell Li-ion powered applications
Typical Application Circuit
Evaluation Kit
Analog Devices / Maxim Integrated MAX77813EVKIT Evaluation Kit
Evaluates the MAX77813 2A buck-boost converter for single-cell Li-ion battery powered applications.
Published: 2019-02-08
| Updated: 2023-04-21