MAX38911/MAX38912 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode Absolute Maximum Ratings IN, OUT, EN, FB, OUTS to GND .. -0.3V to 6V Operating Junction Temperature Range ... -40˚C to +125˚C MODE, BYP, POK to GND ... -0.3V to 6V Maximum Junction Temperature ... +150˚C Output Short-Circuit Duration .. Continuous Storage Temperature Range ... -65˚C to +150˚C Continuous Power Dissipation (T Lead Temperature (Soldering, 10s) .. +300˚C A = +70°C) ... WLP (derate 10.51mW/°C above +70°C) ... 840mW Soldering Temperature (Reflow) ... +260˚C TDFN (derate 11.7mW/C above +70C) .. 937.9mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information WLP Package Code N60P1+1 Outline Number 21-100458 Land Pattern Number Refer to Application Note 1891 Thermal Resistance, Four-Layer Board Junction to Ambient (θJA) 95.15°C/W Junction to Case (θJC) N/A TDFN Package Code T822+3C Outline Number 21-0168 Land Pattern Number 90-0065 Thermal Resistance, Four-Layer Board Junction to Ambient (θJA) 85.3°C/W Junction to Case (θJC) 8.9°C/W Electrical Characteristics (VIN = 3.6V, VOUT = 1.8V, TJ = -40˚C to +125˚C, CBYP = 10nF, CIN = 4.7µF, COUT = 4.7µF, MODE = HIGH, unless mentioned otherwise, Typical values are at TJ = +25˚C, unless otherwise specified) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS Guaranteed by output accuracy V Input Voltage Range V OUT < IN 1.7 5.5 V VIN - VDO Input Undervoltage V Lockout UVLO VIN rising, 100mV hysteresis 1.5 1.6 1.7 V Output Voltage Range V (MAX38911) OUT Output voltage preprogrammed 0.8 5.0 V Guaranteed by output accuracy, Output Voltage Range V programmed using external resistor- 0.8 5.0 V (MAX38912) OUT divider www.maximintegrated.com Maxim Integrated | 2 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
