MAX15462CATA+T

The MAX15462 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 42V input voltage range. The converter delivers output current up to 300mA at 3.3V (MAX15462A), 5V (MAX15462B), and adjustable output voltages (MAX15462C). The device operates over the -40°C to +125°C temperature range and is available in a compact 8-pin (2mm×2mm) TDFN package. Simulation models are available.

Applications

• Process Control
• Industrial Sensors
• 4–20mA Current Loops
• HVAC and Building Control
• High-Voltage LDO Replacement
• General-Purpose Point of Load

Key features

• The device employs a peak-current-mode control architecture with a MODE pin that can be used to operate the device in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes.
• PWM operation provides constant frequency operation at all loads and is useful in applications sensitive to variable switching frequency.
• PFM operation disables negative inductor current and additionally skips pulses at light loads for high efficiency.
• The low-resistance on-chip MOSFETs ensure high efficiency at full load and simplify the PCB layout.
• To reduce input inrush current, the device offers an internal soft-start.
• The device also incorporates an EN/UVLO pin that allows the user to turn on the part at the desired input-voltage level.
• An open-drain RESET pin can be used for output-voltage monitoring.