MAX38886
PRODUCTION2.5V to 5.0V, 0.5A/2.5A, Charge/Discharge Regulator for Supercapacitor Backup Applications
Continua™ Family of Backup Power Regulators Using Supercapacitor or Capacitor Bank
- Part Models
- 2
- 1ku List Price
- Starting From $2.84
Overview
- 2.5V to 5V System Output Voltage
- Up to 4.5V Capacitor Voltage Range
- Up to 2.5A Peak Inductor Discharge Current
- Programmable Voltage and Current Thresholds
- ±2% Threshold Accuracy
- Up to 95% Efficiency, Charge or Discharge
- 2.5μA Ready Quiescent Current
- Small Solution Size
- 3mm x 3mm x 0.75mm TDFN Package
The MAX38886 is a storage capacitor or capacitor bank backup regulator designed to efficiently transfer power between a storage element and a system supply rail in reversible buck and boost operations using the same inductor.
When the main supply is present and above the minimum system supply voltage, the regulator operates in buck mode and charges the storage element at up to 500mA peak inductor current. Once the storage element is charged, the circuit draws only 2.5μA of current while it maintains the supercapacitor or other storage element in its ready state. When the main supply is removed, the regulator operates in boost mode and prevents the system from dropping below the minimum operating voltage, discharging the storage element at up to 2.5A peak inductor current.
The MAX38886 is externally programmable for minimum and maximum voltage of the storage element, such as supercapacitor, minimum system voltage, and maximum charge and discharge currents. The internal DC-DC converter requires only a 1µH inductor.
Applications
- Handheld Industrial Equipment
- Portable Computers
- Portable Devices with a Removable Battery
Documentation
Data Sheet 1
Design Note 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 |
|---|---|---|---|
| MAX38886ATD+ | 14-Lead TDFN (3mm x 3mm x 0.75mm) | ||
| MAX38886ATD+T | 14-Lead TDFN (3mm x 3mm x 0.75mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX38886ATD+ | PRODUCTION | |
| MAX38886ATD+T | PRODUCTION | |
|
Apr 27, 2024 - 2400 ASSEMBLY |
||
| MAX38886ATD+ | PRODUCTION | |
| MAX38886ATD+T | PRODUCTION | |
|
Apr 23, 2024 - 2419N ASSEMBLY |
||
| MAX38886ATD+ | PRODUCTION | |
| MAX38886ATD+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 1 | ||
| MAX38888 | PRODUCTION | 2.5V–5.0V, 0.5A/2.5A Reversible Buck/Boost Regulator for Backup Power Applications |
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 MoreSIMPLIS Models 1
Evaluation Kits
Evaluation Kit for the MAX38886