MAX77827
PRODUCTION5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ
High Efficiency, Low IQ Buck-Boost Converter
- Part Models
- 16
- 1ku List Price
- Starting From $0.86
Overview
- 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
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)
Documentation
Data Sheet 1
Technical Articles 1
Video 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX77827AEFD+ | LFCSP | ||
| MAX77827AEFD+T | LFCSP | ||
| MAX77827AEWC+ | WLCSP | ||
| MAX77827AEWC+T | WLCSP | ||
| MAX77827BEFD+ | LFCSP | ||
| MAX77827BEFD+T | LFCSP | ||
| MAX77827BEWC+ | WLCSP | ||
| MAX77827BEWC+T | WLCSP | ||
| MAX77827CEFD+ | LFCSP | ||
| MAX77827CEFD+T | LFCSP | ||
| MAX77827CEWC+ | WLCSP | ||
| MAX77827CEWC+T | WLCSP | ||
| MAX77827DEFD+ | LFCSP | ||
| MAX77827DEFD+T | LFCSP | ||
| MAX77827DEWC+ | WLCSP | ||
| MAX77827DEWC+T | WLCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571E PIN/ERRATA |
||
| MAX77827AEFD+ | PRODUCTION | |
| MAX77827AEFD+T | PRODUCTION | |
| MAX77827BEFD+ | PRODUCTION | |
| MAX77827BEFD+T | PRODUCTION | |
| MAX77827CEFD+T | PRODUCTION | |
| MAX77827DEFD+ | PRODUCTION | |
| MAX77827DEFD+T | PRODUCTION | |
|
May 19, 2021 - 2027A ASSEMBLY |
||
| MAX77827AEFD+ | PRODUCTION | |
| MAX77827AEFD+T | PRODUCTION | |
| MAX77827BEFD+ | PRODUCTION | |
| MAX77827BEFD+T | PRODUCTION | |
| MAX77827CEFD+ | PRODUCTION | |
| MAX77827CEFD+T | PRODUCTION | |
| MAX77827DEFD+ | PRODUCTION | |
| MAX77827DEFD+T | PRODUCTION | |
|
Feb 21, 2025 - 2453N ASSEMBLY |
||
| MAX77827BEWC+ | PRODUCTION | |
| MAX77827BEWC+T | PRODUCTION | |
|
Dec 7, 2020 - 2109 TEST |
||
| MAX77827BEWC+ | PRODUCTION | |
| MAX77827BEWC+T | PRODUCTION | |
| MAX77827CEWC+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Switching Regulators & Controllers 3 | ||
| MAX77816 | PRODUCTION | High-Efficiency Buck-Boost Regulator with 5A Switches |
| MAX77801 | RECOMMENDED FOR NEW DESIGNS | 5.5V Input, 2A, High-Efficiency Buck-Boost Converter |
| MAX77813 | PRODUCTION | 5.5V Input, 2A, High-Efficiency Buck-Boost Converter |
Tools & Simulations
ADI Power Studio™ Designer
ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.
Learn More