Datasheet MAX38911, MAX38912 (Maxim)

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MAX38911/MAX38912 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode General Description Benefits and Features
The MAX38911/MAX38912 are low-noise, high-PSRR • Deliver Wide, Flexible Operating Range PMOS linear regulators that deliver up to a 500mA load o 1.7V to 5.5V Input Supply Range current with only 11µVRMS of output noise from 10Hz to o 0.8V to 5.0V Output Voltage Range 100kHz. o 500mA Maximum Output Current o The MAX38911 is preconfigured to have a single output 24.3mV Dropout at 500mA Load and 5.0V Input voltage in the range of 0.8V to 5.0V, while the output Voltage o voltage on the MAX38912 can be adjusted to a value in 19.2µA No-Load Supply Current in Low-Power the range of 0.8V to 5.0V by using two external feedback Mode o resistors. 332µA Supply Current in Normal Mode o <1µA Shutdown Supply Current The regulators are fully protected from damage by • Reduce Noise and Improve Accuracy internal circuitry that provides programmable inrush o 11µVRMS Output Noise, 10Hz to 100kHz current limiting, output overcurrent limiting, reverse o 70dB PSRR at 10kHz, 250mA Load Current, and current limiting, and thermal overload protection. 300mV Input and Output Voltage Separation The MAX38911ANT is packaged in a 1.42mm x o ±1% DC Accuracy over Load, Line, and 0.83mm, 3 x 2, 6-bump, 0.4mm pitch WLP, while the Temperature Variations MAX38911ATA and MAX38912ATA are packaged in a • Enable Ease-of-Use and Robust Protection 8-pin, 2mm x 2mm TDFN. o Stable with 2µF (Minimum Effective) Output Capacitance
Applications
o Programmable Soft-Start Rate • Mobile Phones o Overcurrent and Overtemperature Protection • Digital Camera and Audio Devices o Reverse-Current Protection • Portable and Battery-Powered Equipment o Power-OK Output • High-Performance Sensors for Portable • Reduce Size and Improve Reliability Applications o 1.42mm x 0.83mm, 3 x 2, 6-Bump, 0.4mm Pitch • IOT Sensors WLP • Imaging and High-Frequency Sensors o 2mm x 2mm, 8-Pin TDFN Package o -40°C to +125°C Operating Temperature
Ordering Information appears at end of data sheet. Application Diagram
OUT IN IN OUT PREPROGRAMMED 1.8V 2.1V TO 5.5V OR UP TO 0.5A C1 C2 C3 4.7µF 10nF 4.7µF GND BYP
MAX38911
ACTIVE-HIGH ENABLE EN
WLP
NORMAL MODE LPM www.maximintegrated.com 19-100886; Rev 0; 1/21 Document Outline General Description Applications Benefits and Features Application Diagram Absolute Maximum Ratings Package Information Electrical Characteristics Typical Operating Characteristics Pin Configurations Pin Descriptions Simplified Block Diagram Detailed Description Modes of Operation Low-Power Mode of Operation High-Power Mode of Operation MODE Transition Enable (EN) Bypass (BYP) Power-OK (POK) Protection Undervoltage Lockout (UVLO) Output Voltage Configuration MAX38911 Output Voltage Configuration MAX38912 Output Voltage Configuration Application Information Input and Output Capacitors Thermal Consideration Typical Application Circuits Ordering Information