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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flp2985a”>View Datasheet
Texas Instruments LP2985/LP2985A Low-Dropout (LDO) Voltage Regulators are fixed-output, wide-input, low-noise, low-dropout voltage regulators supporting an input voltage range from 2.5V to 16V and up to 150mA of load current. The LP2985/LP2985A supports an output range of 1.2V to 5.0V (LP2985-xxyyzM3). Additionally, the LP2985/LP2985A (LP2985-xxyyzM3) has a 1% output accuracy across the load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.
Low output noise of 30µVRMS (with 10nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70dB at 1kHz and 40dB at 1MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering. The internal soft-start time and current limit protection reduce inrush current during start-up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
The Texas Instruments LP2985/LP2985A comes in a 5-pin 2.9mm × 1.6mm SOT-23 (DBV) package.
LP2985-xxyyyz – Legacy Chip
xx is the nominal output voltage (for example, 33 = 3.3V; 50 = 5.0V)
yyy is the package designator
z is the package quantity (R is for large quantity reel, T is for small quantity reel)
LP2985-xxyyyzM3 – New Chip
xx is the nominal output voltage (for example, 33 = 3.3V; 50 = 5.0V)
yyy is the package designator
z is the package quantity (R is for large quantity reel, T is for small quantity reel)
M3 is a suffix designator for newer chip redesigns, fabricated on the latest TI process technology
