MAX38911/MAX38912 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode MODE AND LOAD TRANSIENT RESPONSELINE TRANSIENT RESPONSE toc09 toc10 100mA/div 2V/div VMODE I 500mA/div OUT 500mV/div V 10mV/div OUT (1.8V 20mV/div OFFSET) (1.8V VIN = 2.1V, VOUT = 1.8V, OFFSET) IOUT I V OUT_STEP = 500mA, V OUT I V IN = 2.1V - 2.5V - 2.1V, VOUT = 1.8V, OUT_LPM = 1mA, IN I MODE = HIGH TO LOW O 10 UT = 500mA, HPM 0ms/d m iv 50µs/div 100ms/div SOFT-START RESPONSEDROPOUT VOLTAGE vs. OUTPUT CURRENT toc11 toc12 70 500mV/div LPM 60 2V/div 50 VENABLE V 500mV/div OUT = 1.8V ) 40 V (m 30 V DO VIN VOUT = 5V 20 VOUT 500mA/div 10 IOUT VIN = 2.1V, VOUT = 1.8V, IOUT = 500mA, HPM 0 0 5 10 15 20 500µs/div IOUT (mA) www.maximintegrated.com Maxim Integrated | 7 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
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