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MIC2941AWT Datasheet(PDF) 1 Page - Microchip Technology |
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MIC2941AWT Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 24 page  2018 - 2022 Microchip Technology Inc. and its subsidiaries DS20006000B-page 1 MIC2940A/41A Features • High Output Voltage Accuracy • Guaranteed 1.25A Output • Low Quiescent Current • Low Dropout Voltage • Extremely Tight Load and Line Regulation • Very Low Temperature Coefficient • Current and Thermal Limiting • Input Can Withstand –20V Reverse Battery and +60V Positive Transients • Logic-Controlled Electronic Shutdown • Output Programmable from 1.24V to 26V (MIC2941A) • Available in TO-220-3, TO-263-3, TO-220-5, and TO-263-5 Packages Applications • Battery-Powered Equipment • Cellular Telephones • Laptop, Notebook, and Palmtop Computers • PCMCIA VCC and VPP Regulation/Switching • Barcode Scanners • Automotive Electronics • SMPS Post-Regulator/DC-to-DC Modules • Voltage Reference • High Efficiency Linear Power Supplies General Description The MIC2940A and MIC2941A are “bulletproof” efficient voltage regulators with very low dropout voltage (typically 40 mV at light loads and 350 mV at 1A), and low quiescent current (240 μA typical). The quiescent current of the MIC2940A increases only slightly in dropout, thus prolonging battery life. Key MIC2940A features include protection against reversed battery, fold-back current-limiting, and automotive “load dump” protection (60V positive transient). The MIC2940A is available in both fixed voltage (3.3V, 5V, and 12V) and adjustable voltage configurations. The MIC2940A-xx devices are three pin, fixed-voltage regulators. A logic-compatible shutdown input is provided on the adjustable MIC2941A, which enables the regulator to be switched on and off. Package Types MIC2940A-X.XWT TO-220-3 (T) (Top View) 12 3 12 3 MIC2940A-X.XWU TO-263-3 (U) (Top View) 12 3 4 5 MIC2941AWU TO-263-5 (U) (Top View) 12 3 4 5 MIC2941AWT TO-220-5 (T) (Top View) 1.25A Low Dropout Voltage Regulator |
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