MAX38911/MAX38912 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode DROPOUT VOLTAGE vs. OUTPUT CURRENTINPUT SUPPLY PSRR vs. FREQUENCY toc13 70 0 toc14 HPM V -10 IN = 2.1V, VOUT = 1.8V 60 V -20 OUT = 1.8V 50 -30 IOUT = 500mA B)d ) 40 ( -40 V E D (m -50 30 V DO V -60 OUT = 5V AGNITU M 20 -70 IOUT = 250mA 10 -80 -90 IOUT = 100mA 0 0 100 200 300 400 500 -100 10 100 1000 10000 100000 1000000 10000000 IOUT (mA) FREQUENCY (Hz) INPUT SUPPLY PSRR vs. FREQUENCYINPUT SUPPLY PSRR 0 toc15 0 toc16 V V -10 IN = 2.8V, VOUT = 2.5V -10 IN = 3.6V, VOUT = 3.3V -20 I -20 OUT = 500mA IOUT = 500mA -30 -30 ) B B -40 -40 -50 -50 GNITUDE (d -60 GNITUDE (d -60 A A M M I -70 IOUT = 250mA -70 OUT = 250mA -80 I -80 I OUT = 100mA OUT = 100mA -90 -90 -100 -100 10 100 1000 10000 100000 1000000 10000000 10 100 1000 10000 100000 1000000 10000000 FREQUENCY (Hz) FREQUENCY (Hz) www.maximintegrated.com Maxim Integrated | 8 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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