Click here to ask about the production status of specific part numbers. MAX38907/MAX38908 4A, High-Performance LDO Linear Regulators General Description Benefits and Features The MAX38907/MAX38908 are fast transient response, Delivers Flexible Operating Range high-PSRR nMOS linear regulators that deliver up to 4A 0.9V to 5.5V Input Voltage Range load current. 2.7V to 20V BIAS Voltage Range 0.6V to 5.0V Programmable Output Voltage These regulators support a wide input supply range from 4A Maximum Output Current 0.9V up to 5.5V, and BIAS voltage range from 2.7V to 20V 51mV Dropout at 4A Load Current to provide wider supply options in a variety of applications. 1.6mA Operating BIAS Supply Current Output accuracy of 1% is maintained over line, load, and temperature variations, requiring only 300mV of input-to- Reduces Noise and Improves Accuracy output headroom at full load for a good PSRR. The output 1% DC Accuracy over Load, Line, and voltage can be adjusted to a value in the range of 0.6V to Temperature 5.0V to accommodate customers that desire to specify a 28mV, 4A Load-Transient Excursion single LDO in the BOM for multiple voltage rails. 78dB BIAS PSRR at 10kHz 52dB IN PSRR at 10kHz at 300mV Input-to-Output The MAX38907 is configurable to one of 27 output volt- Headroom ages using three digital configuration pins. Additionally, each output voltage selection can be adjusted 5% for Enables Ease-of-Use and Robust Protection margining. The output voltage on the MAX38908 can be Stable with 10F (Minimum) Output Capacitance adjusted to a value in the range of 0.6V to 5.0V by using Programmable Soft-Start Rate two external feedback resistors. These LDOs are fully pro- Overcurrent and Overtemperature Protection tected from damage by internal circuitry that provides pro- Output-to-Input Reverse-Current Protection grammable inrush current limiting, output overcurrent limit- Power-OK Status Pin ing, reverse-current limiting, and thermal overload protec- Reduces Size, Improves Reliability tion. 14-Pin (3mm x 3mm) TDFN, 20-Pin (5mm x 5mm) The MAX38907 is offered in a 20-pin, 5mm x 5mm TQFN TQFN, and 5 x 3 Bump, 0.4mm Pitch WLP package, while the MAX38908 is offered in 5 x 3 bump, -40C to +125C Operating Temperature 0.4mm pitch WLP and 14-pin, 3mm x 3mm TDFN pack- ages. Ordering Information appears at end of data sheet. Applications FPGAs and DSPs Medical, Audio, and Instrumentation Server Ps Portable Cameras PLCs Base Stations 19-100604 Rev 2 11/20MAX38907/MAX38908 4A, High-Performance LDO Linear Regulators Typical Application Circuits IN OUT IN OUT IN OUT IN OUT (1.3V TO 5.5V) (1.0V/UP TO 4A) (1.3V TO 5.5V) (1.0V/UP TO 4A) C3 C3 IN OUT IN OUT 22F 22F IN OUT IN OUT IN IN OUT OUT R3 C1 C2 C1 R3 100k C2 MAX38907MAX38907 MAX38908MAX38908 22F 47nF 22F 47nF 100k GND BYP GND BYP ENABLE EN OUTS ENABLE EN POK POK R2 SELA (HIGH) SELA 10k SELB (HIGH) SELB SELC (FLOAT) SELC POK FB POK BIAS BIAS EP MRG (FLOAT) MRG (2.7V TO 20V) R1 C4 15k 1F BIAS BIAS EP (2.7V TO 20V) C4 1F www.maximintegrated.com Maxim Integrated 2