EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX38904A/B/C/D 1.7V to 5.5V , 2A Low-Noise LDO Linear IN Regulators in TDFN and WLP General Description Benefits and Features The MAX38904 is a 1.7V5.5V V , low-noise linear reg- Delivers Flexible Operating Range IN ulator that delivers up to 2A of output current with only 1.7V to 5.5V Input Voltage Range 5.1V of output noise from 10Hz to 100kHz. The reg- 0.6V to 5.0V Programmable Output Voltage RMS ulator maintains 1% output accuracy over a wide in- 2A Maximum Output Current put voltage range, requiring only 100mV of input-to-output 100mV Maximum Dropout at 2A Load headroom at full load. The 1.3mA no-load supply current < 1.5A Shutdown Supply Current is independent of dropout voltage. Reduces Noise and Improves Accuracy The output voltage on MAX38904B can be adjusted to a 1% DC Accuracy Over Load, Line, and value in the range of 0.6V to 5.0V by using two external Temperature resistors. The MAX38904B also includes an active-high 5.1V Output Noise, 10Hz to 100kHz RMS POK signal for trouble-free load startup. 1.3mA Quiescent Supply Current > 70dB PSRR at 10kHz The MAX38904A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. Enables Ease-of-Use and Robust Protection Stable with 8F (Min) Output Capacitance The wafer-level package (WLP) versions of the Programmable Soft-Start Rate MAX38904 are available as C and D variants. The Overcurrent and Overtemperature Protection MAX38904C uses external feedback resistors for adjust- Output-to-Input Reverse Current Protection ing the output voltage, while the MAX38904D has factory Power-OK Status Pin preset output voltages over the range of 0.7V to 5.0V in 50mV steps. Reduces Size, Improves Reliability 3mm x 3mm 14-pin TDFN Package and 2.2mm x All versions include a programmable output soft-start rate, 1.37mm, 5 x 3 Bump, 0.4mm Pitch WLP output overcurrent, and thermal overload protection. -40C to 125C Operating Temperature The MAX38904A/B are offered in a 3mm x 3mm, 14-pin TDFN package, while the MAX38904C/D are available in Ordering Information appears at end of data sheet. 5 x 3 bump, 2.2mm x 1.37mm WLP, 0.4mm pitch. Applications Communication Systems, Test Equipment, Medical Equipment High-End Audio Systems High-Resolution Data Acquisition Systems 19-100443 Rev 6 5/21MAX38904A/B/C/D 1.7V to 5.5V , 2A Low-Noise LDO Linear IN Regulators in TDFN and WLP Simplified Block Diagram V V IN OUT IN OUT (1.7V TO 5.5V) (1.5V/2A) C C BYP COUT IN 22F 22F 47nF R3 GND BYP 100k MAX38904B ENABLE EN POK RESETB R1 90k GS FB EP R2 60k www.maximintegrated.com Maxim Integrated 2