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MAX8902A Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX8902A Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 9 page  MAX8902A/MAX8902B Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package EVALUATION KIT AVAILABLE 19-0990; Rev 6; 1/15 General Description The MAX8902A/MAX8902B low-noise linear regulators deliver up to 500mA of output current with only 16µVRMS of output noise in a 100kHz bandwidth. These regulators maintain their output voltage over a wide input range, requiring only 100mV of input-to-output headroom at full load. These LDOs maintain a low 80µA typical supply cur- rent, independent of the load current and dropout volt- age. The regulator control circuitry includes a programmable soft-start circuit and short circuit, reverse current, and thermal-overload protection. Other features include an enable input and a power-OK out- put (MAX8902B only). The MAX8902A output voltage can be set to 1.5V, 1.8V, 2.0V, 2.5V, 3.0V, 3.1V, 3.3V, 4.6V, or 4.7V using the SELA and SELB inputs. The MAX8902B output voltage can be set between 0.6V and 5.3V with an external resistor voltage-divider. Applications Notebook Computers MP3 and Portable Media Players Wireless Headphones GPS Portable Navigation Devices Smartphones Features • 1.7V to 5.5V Input Voltage Range • 0.6V to 5.3V Output Voltage Range • 16µVRMS Output Noise, 10Hz to 100kHz • 80µA Operating Supply Current • 92dB PSRR at 5kHz • Guaranteed 500mA Output Current • ±1.5% Output Accuracy Over Load, Line, and Temperature • 100mV (max) Dropout at 500mA Load • < 1µA Shutdown Supply Current • 700mA Short-Circuit Protection • Thermal-Overload Protection • Output-to-Input Reverse Current Protection • 2mm x 2mm x 0.8mm TDFN Package Ordering Information IN EN OUT BYP ON OFF OUTPUT 4.6V SELB SELA OUTS GND EP 10 μF INPUT 4.7V TO 5.5V 0.01 μF 10 μF MAX8902A Typical Operating Circuits PART FEATURES TOP MARK MAX8902AATA+ Pin-selectable output voltage ABG MAX8902AATA/V+ Pin-selectable output voltage BRP MAX8902BATA+ Adjustable output voltage ABH MAX8902BATA/V+ Adjustable output voltage ADL + Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. Note: All devices are in an 8-pin, 2mm x 2mm TDFN package with an exposed paddle and operate over the -40°C to +125°C automotive temperature range. IN EN OUT BYP ON OFF OUTPUT ADJUSTABLE 0.6V TO 5.3V GS POK FB GND EP 10 μF INPUT 1.7V TO 5.5V 0.01 μF 10 μF MAX8902B R1 R2 LOGIC SUPPLY R3 100k Ω TO μC Pin Configurations appear at end of data sheet. |
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