Automotive OEMs often limit instrument cluster module power consumption to less than 100 µA in standby mode. Considering all the functions performed by the instrument cluster, the power supply itself should consume only a small portion of the energy budget. Under no-load conditions, the MAX16993 is the only 3-channel solution on the market that draws only 25 µA of quiescent current. This makes the PMIC more efficient than traditional DC-DC converters, which often run at several milliamps. Furthermore, because the MAX16993 integrates a high-frequency switching driver and two 3 A output converters, it saves over 50% of board space compared to traditional discrete solutions. The device's 2.1 MHz frequency improves its AM band noise performance and keeps external inductors and capacitors small. The MAX16993 is ideal for automotive instrument clusters and infotainment applications.
Key Advantages
• Small: Integrates a high-voltage step-down converter and two 3A low-voltage step-down converters, saving over 50% of board space compared to discrete solutions.
• Efficient: Consumes only 25μA of quiescent current under no-load conditions, meeting OEM power requirements.
• Quiet: Reduces AM band noise, provides a wide spectrum to minimize radiated electromagnetic interference (EMI) at the input, and includes factory-programmable I/O timing for improved noise immunity.
Comments
• "The MAX16993 offers many best-in-class features on a single chip," says Dan Dempsey, Executive Director of the Enterprise Automotive Unit at Maxim Integrated. "As a result, the MAX16993 is a highly efficient automotive power solution for instrument clusters today."
Availability and Pricing
• The MAX16993 is available in a 5 mm x 5 mm x 0.75 mm, 32-pin TQFN-EP package and a 5 mm x 5 mm x 0.8 mm, QFND-EP "wettable side" package.
• The device is AEC-Q100 qualified and has an automotive operating temperature range of -40°C to +125°C.
• Pricing starts at $5.39 (minimum order of 1000, FOB USA).
A MAX16993 evaluation kit is available to facilitate design. High-resolution images for the final application of the MAX16993 and the MAX16993 block diagram are also available.
