Analog Devices / Maxim Integrated MAX25206/MAX25207/MAX25208 Automotive Controllers

Analog Devices Inc. MAX25206/MAX25207/MAX25208 Versatile Automotive Buck Controllers are 2.2MHz synchronous step-down controllers with 7μA I_Q. The devices operate with an input voltage supply from 3.5V to 60V. They operate in drop-out condition by running at 99% (typ) duty cycle. These controllers are intended for applications with mid- to high-power requirements. This includes applications that operate at a wide input voltage range like during automotive cold-crank or engine stop-start conditions. The MAX25207 has an optional bypass mode, which allows 100% high-side switch on until step-down function is needed during automotive transients.

Features

Meets stringent automotive oem module power consumption and performance specifications
- 7µA Quiescent current in skip mode
- Fixed 5.0V/3.3V or adjustable 0.7V to 20V output
- ±1.5% Output-voltage accuracy for 5V fixed setting
Enables crank-ready designs
- Wide input supply range from 3.5V to 60V/70V
EMI Reduction features reduce interference with sensitive radio bands without sacrificing wide input voltage range
- 50ns (typ) Minimum on-time allows skip-free operation for 3.3V output from car battery at 2.2MHz
- Spread-spectrum option
- Frequency-synchronization input
- Resistor-programmable frequency between 220kHz and 2.2MHz

Integration and thermally enhanced packages save board space and cost
- 2.2MHz Step-down controller
- 180 Degrees Out-of-Phase SYNCOUT output for synchronization
- Current-mode controller with forced-continuous and skip modes
- Thermally enhanced 20-Pin Side-Wettable (SW) 4mm x 4mm TQFN-EP package
Protection features improve system reliability
- Supply undervoltage lockout
- Output overvoltage and undervoltage monitoring
- Overtemperature and short-circuit protection
- -40ºC to +125ºC Grade 1 automotive temperature range

Applications

Infotainment systems
48V Systems
General purpose Point of Load (POL)

Analog Devices / Maxim Integrated MAX25206/MAX25207/MAX25208 Automotive Controllers

Features

Applications

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