MAX77505
RECOMMENDED FOR NEW DESIGNS16V Input, 4.6A Switching Current Low IQ Buck Converter
16V Input, 4.6A/2.3A Switching Current Low IQ Buck Converter
- Part Models
- 2
- 1ku List Price
- Starting From $0.77
Overview
- Input Voltage: 2.5V to 16V
- Output Voltage: 0.8V to 5.5V
- Long Battery Life
- 70nA Shutdown Current
- 800nA Ultra-Low Quiescent Current (IQ)
- 86% Efficiency at 100μA Load at 7.6VIN, 3.3VOUT
- 95% Peak Efficiency at 7.6VIN, 3.3VOUT
- POKB Output (Open-Drain)
- SEL Pin for Output Voltage Selection
- Protections Features
- Cycle-by-Cycle Inductor Peak Current Limit
- Short Circuit, Undervoltage Lockout (UVLO), and Thermal Protection
- FC2QFN-10 Package (2.0mm x 2.0mm x 0.55mm)
The MAX77505 is a low-quiescent current (800nA typ), high-efficiency hysteretic buck converter operating from a 2.5V to 16V input voltage range. The device offers high efficiency over the entire load range. Hence, it is ideal for either a primary battery or four alkaline batterypowered applications, which require long standby/idling time with short working time, such as asset tracking and door-lock devices.
A resistor (RSEL) selects one of thirty preset output voltages between 0.8V and 5.5V. The device has input undervoltage lockout, cycle-by-cycle switch current limit, and thermal shutdown to protect the system and the device itself. The device is available in a 10-lead FC2QFN package (2.0mm x 2.0mm x 0.55mm).
APPLICATIONS
- 2-3 Cell Li+ Battery Applications
- 4-Cell Alkaline Battery Applications
- IoT, Wearable Devices
- Smart Meter, Door Locks, Asset Trackers, etc.
Documentation
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 |
|---|---|---|---|
| MAX77505AEFB+ | F102A2F+3 | ||
| MAX77505AEFB+T | F102A2F+3 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571E PIN/ERRATA |
||
| MAX77505AEFB+ | PRODUCTION | |
| MAX77505AEFB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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