MAX25660
RECOMMENDED FOR NEW DESIGNSAutomotive Low-Noise Synchronous Buck-Boost Converter
- Part Models
- 4
- 1ku List Price
- price unavailable
Overview
- Meets Stringent Automotive Quality and Reliability Requirements
- 3.6V to 36V Operating Input Voltage Range Allows Operation in Cold-Crank Conditions
- Tolerates Input Transients up to 42V
- Low Audible Noise for 6A Load Transients
- 9A or 10.8A Typical Input Current Limit
- Loop Bandwidth Adjustment for Fast Transients
- -40°C to +125°C Grade 1 Automotive Temperature Range
- AEC-Q100 Qualified High Integration and Thermally Enhanced Package Reduces BOM Cost and Board Space
- 2.1MHz/400kHz Switching Frequency Options
- Thermally Enhanced, 22-Pin FC2QFN Package
- 5μA Maximum Shutdown Current
- Protection Features Improve System Reliability
- Supply Undervoltage Lockout and Thermal Protection
-
The MAX25660 is a small, synchronous, buck-boost
converter with integrated H-bridge switches. This IC
provides a fixed-output regulation voltage and an
externally adjustable output voltage in the 2.75V to 14V
range with an input voltage above, below, or equal to the
output regulation voltage. The MAX25660AFFA has a
9A (typ) input current limit, while the MAX25660AFFB
has a 10.8A (typ) input current limit. Both versions can
support continuous load currents up to 6A, which
depends on the input-to-output voltage ratio and
operating frequency. It also has a wide input voltage
range of 3.6V to 36V. The MAX25660 features automatic
loop bandwidth adjustment that automatically changes
the loop bandwidth, which depends on the operating
mode. This allows for a very fast transient response time
when in Buck mode, which reduces audible noise
caused by large changes in the load.
- Display Applications
- Tail-Light and Front-Light Applications
- Point-of-Load Power Supplies
The MAX25660 has two switching frequency options: 2.1MHz and 400kHz. The 2.1MHz high switching frequency allows for small external components and reduced output ripple, and guarantees no AM band interference, while the 400kHz switching frequency offers better efficiency and relieves the power consumption concern. The IC also includes spreadspectrum frequency modulation to minimize electromagnetic interference (EMI).
The MAX25660 features a power-good (PGOOD) indicator, undervoltage lockout, overvoltage protection, cycle-by-cycle current limit, and thermal shutdown. The IC is available in a small, 4.25mm x 4.25mm x 0.75mm, 22-pin FC2QFN package.
APPLICATIONS
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
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 |
|---|---|---|---|
| MAX25660AFFA/VY+ | LFCSP | ||
| MAX25660AFFA/VY+T | LFCSP | ||
| MAX25660AFFB/VY+ | LFCSP | ||
| MAX25660AFFB/VY+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 27, 2025 - 2426A MECHANICAL DATASHEET |
||
| MAX25660AFFA/VY+ | PRODUCTION | |
| MAX25660AFFA/VY+T | PRODUCTION | |
| MAX25660AFFB/VY+ | PRODUCTION | |
| MAX25660AFFB/VY+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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