Datasheet MAX38911, MAX38912 (Maxim) - 3

link to page 4

MAX38911/MAX38912 11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode

(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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MODE = HIGH, IOUT from 0.1mA to 500mA, VIN from VOUT + 0.3V to 5.5V, -1 +1 Output Accuracy V ACC IN > 1.7V % (MAX38911 only) MODE = LOW, IOUT from 0.1mA to 20mA, VIN from VOUT + 0.3V to 5.5V, VIN -1 +1 > 1.7V MODE = HIGH, IOUT from 0.1mA to 500mA, V 0.594 0.6 0.606 Feedback (FB) IN from VOUT + 0.3V to 5.5V, V Accuracy V IN > 1.7V FB V MODE = LOW, I (MAX38912 only) OUT from 0.1mA to 20mA, VIN from VOUT + 0.3V to 5.5V, 0.594 0.6 0.606 VIN > 1.7V Effective capacitance required for stability Output Capacitance COUT 2 4.7 µF and proper operation TJ = +25°C 0.01 1 ISD VEN = 0V TJ = +125°C 1.6 Input Supply Current µA EN = HIGH, MODE = HIGH, IOUT = 0mA 332 750 IQ EN = HIGH, MODE = LOW, IOUT = 0mA 19.2 50 V Line Regulation ACC IN from 3.6V to 5.5V, IOUT = 500mA, LINE_REG 0.068 %/V VOUT = 3.3V ACC I Load Regulation LOAD_RE OUT from 0.1mA to 500mA, VIN = VOUT 0.078 % G + 0.3V I Load Transient OUT = 50mA to 500mA or 500mA to 48 mV 50mA, tRISE = tFALL = 1µs V Line Transient IN = 2.1V to 2.5V to 2.1V, IOUT = 5 mV 500mA, tRISE = tFALL = 5µs Output Transient at MODE rising or falling, I MODE Transition OUT = 1mA 20.5 mV MODE from LOW to HIGH to I MODE Transition Time OUT = 50 µs 500mA f = 1kHz 80 VIN = 2.1V, VOUT = f = 10kHz 76 1.8V, IOUT = 100mA f = 100kHz 60 Power-Supply Rejection f = 1MHz 46 PSRR dB Ratio f = 1kHz 80 VIN = 3.6V, VOUT = f = 10kHz 78 3.3V, IOUT = 100mA f = 100kHz 60 f = 1MHz 44 VIN = 2.1V, IOUT = Output Noise 100mA, 10Hz to CBYP = 47nF 11.1 µVRMS 100kHz VIN = 5.0V 24.3 Dropout Voltage IOUT = 500mA, VIN = 3.6V 36 100 (MAX38911 WLP) VDO when MODE = mV (Note 2) HIGH VIN = 2.0V 58 120 VIN = 1.7V 83 165 www.maximintegrated.com Maxim Integrated | 3 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