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LP2981A-30 Datasheet(PDF) 1 Page - Texas Instruments |
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LP2981A-30 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page VIN VOUT GND ON/OFF VREF 1.23 V í + R 1 R 2 Overcurrent/ Overtemperature Protection Copyright © 2016, Texas Instruments Incorporated Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LP2981-28, LP2981-29, LP2981-30 LP2981-33, LP2981-50, LP2981A-28 LP2981A-29, LP2981A-30, LP2981A-33, LP2981A-50 SLVS521G – JULY 2004 – REVISED AUGUST 2016 LP2981 100-mA Ultra-Low Dropout Regulators With Shutdown 1 1 Features 1 • Output Tolerance of – 0.75% (A Grade) – 1.25% (Standard Grade) • Ultra-Low Dropout Typically: – 200 mV at Full Load of 100 mA – 7 mV at 1 mA • Low IQ: 600 µA Typical at Full Load of 100 mA • Shutdown Current: 0.01 µA Typical • Fast Transient Response to Line and Load • Overcurrent and Thermal Protection • High Peak Current Capability • Low ZOUT Over Wide Frequency Range • −40°C to 125°C Temperature Range 2 Applications • Smart Meters • Servo and Motor Control • Mobile Phones and Cameras • Audio and Portable Speakers • Telecommunication and Networking 3 Description The LP2981 and LP2981A families of fixed-output, low-dropout regulators offer exceptional, cost- effective performance for both portable and non- portable applications. Available in fixed voltages of 2.8 V, 3 V, 3.3 V, and 5 V, the family has an output tolerance of 0.75% for the A-grade devices (1.25% for the standard grade) and is capable of delivering 100-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included. The LP2981 and LP2981A have features that make the regulators ideal candidates for a variety of portable applications: • Low dropout: A PNP pass element allows a typical dropout of 200 mV at 100-mA load current and 7 mV at 1-mA load. • Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are considerably lower than those associated with traditional lateral PNP regulators. • Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when the ON/OFF pin is pulled low. Device Information(1) PART NUMBER PACKAGE (PINS) BODY SIZE (NOM) LP2981-XXDBV LP2981A-XXDBV SOT-23 (5) 2.90 mm × 1.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Block Diagram |
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