Features and Benefits
- Small External Components
- 2.2MHz Operating Frequency
- Ideal for Point-of-Load Applications
- 3A Maximum Load Current
- Adjustable Output Voltage: 0.8V to 3.6V
- 2.7V to 5.5V Operating Supply Voltage
- High Efficiency at Light Load
- 26µA Skip Mode Quiescent Current
- Minimizes Electromagnetic Interference
- Programmable SYNC I/O Pin
- Operates Above AM-Radio Band
- Available Spread Spectrum
- Low Power Mode Saves Energy
- 1µA Shutdown Current
- Open-Drain Power-Good Output
- Limits Inrush Current During Startup
- Overtemperature and Short-Circuit Protections
- 16-Pin TSSOP-EP and 16-Pin (4mm x 4mm) TQFN-EP Packages
- -40°C to 125°C Operating Temperature Range
The MAX16961 is a high-efficiency, synchronous step-down converter that operates with a 2.7V to 5.5V input voltage range and provides a 0.8V to 3.6V output voltage range. The wide input/output voltage range and the ability to provide up to 3A to load current make this device ideal for on-board point-of-load and post-regulation applications. The device achieves -3.7%/+2.6% output error over load, line, and temperature ranges.
The device features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for the use of all-ceramic capacitors and minimizes external components. The optional spread-spectrum frequency modulation minimizes radiated electromagnetic emissions.
Integrated low RDSON switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.
The device can be offered with factory-preset output voltages, or with an adjustable output voltage (contact factory for preset output-voltage options). Factory-preset output-voltage versions allow customers to achieve -3.7%/+2.6% output-voltage accuracy without using external resistors, while the adjustable output-voltage version provides the flexibility to set the output voltage to any desired value between 0.8V to 3.6V using an external resistive divider.
Additional features include 8ms soft-start, 16ms power-good output delay, overcurrent, and overtemperature protections.
The MAX16961 is available in thermally enhanced 16-pin TSSOP-EP and 16-pin (4mm x 4mm) TQFN-EP packages, and is specified for operation over the -40°C to +125°C automotive temperature range.
- Automotive Infotainment
- Point-of-Load Applications
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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