MAX25302BATD/V+T

The MAX25302A/MAX25302B are 1.7V to 5.5V VIN, low-noise linear regulators that delivers up to 2A of output current with only 5.1μVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage. The output voltage on the MAX25302B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX25302B also includes an active-high POK signal for trouble-free load startup. The MAX25302A has nine pin-selectable output voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. All versions include a programmable output soft-start rate, output overcurrent, and thermal-overload protection. The MAX25302A/MAX25302B are high-performance pMOS linear regulators that are optimized for low noise, high-input supply rejection, low dropout voltage, and small solution size. They can deliver up to a maximum load current of 2A while maintaining a low dropout voltage of 47mV. An enable input allows the regulator to be powered up and down, while an internal soft-start circuit controls the inrush current at the input. SELA and SELB inputs are provided on the A version for selecting one of nine output voltages and a power-OK output is provided on the B version for system power-up sequencing.

Applications

• Automotive Electronics
• High-End Audio Systems
• High-Resolution Data-Acquisition Systems

Key features

• Delivers Flexible Operating Range
• 1.7V to 5.5V Input Voltage Range
• 0.6V to 5.0V Programmable Output Voltage
• 2A Maximum Output Current
• 100mV Maximum Dropout at 2A Load
• <1.5μA Shutdown Supply Current
• Reduces Noise and Improves Accuracy
• ±1% DC Accuracy over Load, Line, and Temperature
• 5.1μVRMS Output Noise, 10Hz to 100kHz
• 1.3mA Quiescent Supply Current
• >70dB PSRR at 10kHz
• Enables Ease-of-Use and Robust Protection
• Stable with 8μF (min) Output Capacitance
• Programmable Soft-Start Rate
• Overcurrent and Overtemperature Protection
• Output-to-Input Reverse-Current Protection
• Power-OK Status Pin
• Reduces PC Board Area
• 3mm × 3.5mm, 14-pin TDFN Package
• AEC-Q100
• -40°C to +125°C Operating Temperature