Automotive OEMs often limit instrument cluster module power consumption to less than 100µA 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 25µA of quiescent current. This makes the PMIC more efficient than traditional DC-DC converters, which often draw several milliamps. Furthermore, because the MAX16993 integrates a 
high-frequency switching driver and two 3A output converters, it saves more than 50% of board space compared to traditional discrete solutions. The device's 2.1MHz operating frequency improves its AM band noise performance, and it utilizes small external inductors and capacitors. 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 current at idle, meeting OEM power requirements.
• Quiet: Reduces AM band noise, provides a distributed spectrum trigger input that minimizes radiated electromagnetic interference (EMI), and includes factory-programmable I/O timing for improved noise immunity.
Availability and Pricing
• The MAX16993 is available in 5mm x 5mm x 0.75mm, 32-pin TQFN-EP and 5mm x 5mm x 0.8mm, QFND-EP "wettable side" packages.
• The device is AEC-Q100 rated and has an automotive operating temperature range of -40°C to +125°C.
• Pricing starts at $5.39 (minimum order of 1000 units, FOB USA).
MAX16993 evaluation kit is available to facilitate design
