MAX77827
5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ
High Efficiency, Low IQ Buck-Boost Converter
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Overview
Features and Benefits
- 1.8V to 5.5V Input Voltage Range
- 2.3V to 5.3V Single Resistor Adjustable Output Voltage
- 1.6A Maximum Output Current (3.1A ILIM Option, Buck Mode)
- 900mA Maximum Output Current (1.8A ILIM Option, Boost Mode 3.0VIN, 3.3VOUT)
- 96% Peak Efficiency (3.3VIN, 3.3VOUT)
- SKIP Mode for Higher Light-Load Efficiency
- 6μA Ultra-Low Typical Quiescent Current (At TJ = +25°C)
- 2.5MHz Nominal Switching Frequency
- Enable Pin
- GPIO Pins for System Design Convenience
- FPWM (Forced PWM) Mode Selection Pin
- POK Indicator Pin
- UVLO, Soft-Start, Active-Output Discharge, Overcurrent, and Thermal Shutdown Protections
- 1.61mm x 2.01mm, 12-Bump WLP
- 2.5mm x 2.5mm, 14-Lead FC2QFN
Product Details
The MAX77827 is a high-efficiency buck-boost regulator targeted for one-cell Li-ion powered applications with the lowest typical quiescent current in the industry of 6μA. It supports input voltages of 1.8V to 5.5V and an output voltage range of 2.3V to 5.3V. The IC provides two different switching current levels (1.8A and 3.1A) to optimize external component sizing based on given load current requirements. With the 1.8A switching current-limit option, the IC can support up to 1.0A load current in buck mode and 900mA in boost mode (VIN = 3.0V, VOUT = 3.3V).
The peak efficiency of 96% makes the IC one of the best solutions as a DC/DC converter to supply a rail for battery-powered portable applications.
The IC features an adjustable output voltage, which can be programmed from 2.3V to 5.3V through a single resistor. Two GPIO pins are available to support force PWM enable function and power-OK (POK) indicator. A unique control algorithm allows high-efficiency, outstanding line/load transient response, and seamless transition between buck and boost modes. These options provide design flexibility that allow the IC to cover a wide range of applications and use cases while minimizing board space.
The MAX77827 is available in a 1.61mm x 2.01mm, 12-bump wafer-level package (WLP), and a 2.5mm x 2.5mm, 14-lead FC2QFN package.
Applications
- 1-Cell Li+ Battery Powered Equipment
- Smartphones/Portable/Wearables
- Internet of Things (IoT) Devices
- LPWAN (LTE/NB-IoT, LTE/Cat-M1)
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
Tools & Simulations
EE-Sim Power® Tools
The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.
Reference Designs (1)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
MAX77827 Discussions
RE: MAX77827 maximum output current
5 week(s) ago in Power Management
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.