Click here to ask about the production status of specific part numbers. MAX25300A/MAX25300B 12V Low Noise 500mA LDO Linear RMS Regulator General Description Benefits and Features The MAX25300A/B are low-noise linear regulators that de- 1.7V to 5.5V Input Voltage Range liver up to 500mA of output current with only 12V 0.6V to 5.3V Output Voltage Range RMS of output noise from 10Hz to 100kHz. These regulators 12V Output Noise, 10Hz to 100kHz RMS maintain 1% output accuracy over a wide input voltage 365A Operating Supply Current range, requiring only 100mV of input-to-output headroom 70dB PSRR at 10kHz at full load. The 365A no-load supply current is indepen- 500mA Maximum Output Current dent of dropout voltage. 1% DC Accuracy Over Load, Line, and Temperature 100mV (Max) Dropout at 500mA Load (3.6V ) IN The MAX25300A has nine pin-selectable output voltages: < 0.1A Shutdown Supply Current 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. Stable with 2F(Min) Output Capacitance The MAX25300B has a resistor adjustable output voltage Programmable Soft-Start Rate in the range of 0.6V to 5.3V. The MAX25300B also in- Overcurrent and Overtemperature Protection cludes an active-high POK output. Output-to-Input Reversed Current Protection The MAX25300A/B are offered in an 8-pin TDFN package. POK Output 2mm x 2mm 8-pin TDFN Package Applications AEC-Q100 Automotive Electronics -40C to 125C Operating Temperature Audio Systems Ordering Information appears at end of datasheet. High-Resolution Data Acquisition Systems 19-100781 Rev 0 6/20MAX25300A/MAX25300B 12V Low Noise 500mA LDO Linear Regulator RMS Typical Operating Circuits IN IN OUT OUT (1.7V to 5.5V) (1.5V/500mA) C IN C BYP 4.7F C OUT 10nF 4.7F GND BYP MAX25300AMAX25300A TDFNTDFN OUTS ENABLE EN SELA VOUT SELECT: TO GND, IN OR FLOAT Hi-Z SELB EP OUTPUT ADJUSTABLE IN IN OUT (0.6V TO 5.3V) (1.7V to 5.5V) CIN COUT 4.7F C BYP 4.7F R1 10nF 100k GND BYP MAX25300BMAX25300B TDFNTDFN RESET EN POK ENABLE R3 GS FB EP R2 19-100781 www.maximintegrated.com Maxim Integrated 2