MICROCHIP MIC2920A-3.3WS

The MIC2920 family (MIC2920A, MIC29201, MIC29202, and MIC29204) are efficient voltage regulators with very low dropout voltage (typically 40 mV at light loads and 370 mV at 250 mA) and very low quiescent current (140 μA typical). The quiescent current of the MIC2920A increases only slightly in dropout, prolonging battery life. Key MIC2920A features include protection against reversed battery, fold-back current limiting, and automotive “load dump” protection (60V positive transient). The MIC2920 family of devices are available in several configurations. The MIC2920A-x.x devices are 3-lead fixed-voltage regulators available in 3.3V, 4.85V, 5V, and 12V outputs. The MIC29201 is a fixed-voltage regulator that offers a logic-compatible ON/OFF (shutdown) input and an error flag output. This flag may also be used as a power-on reset signal. A logic-compatible shutdown input is provided on the adjustable MIC29202, which allows the regulator to be switched on and off. The MIC29204 8-lead SOIC adjustable regulator includes both shutdown and error flag pins and may be pin-strapped for 5V output or programmed from 1.24V to 26V using two external resistors.

• High Output Voltage Accuracy
• Ensured 400 mA Output
• Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load and Line Regulation
• Very Low Temperature Coefficient
• Current and Thermal Limiting
• Input Withstands –20V Reverse Battery and +60V Positive Transients
• Error Flag Warns of Output Dropout
• Logic-Controlled Electronic Shutdown
• Output Programmable from 1.24V to 26V (MIC29202/MIC29204)
• Available in TO-220-3, TO-220-5, and Surface-Mount TO-263-5, SOT-223, and SOIC-8 Packages

• Battery-Powered Equipment
• Cellular Telephones
• Laptop, Notebook, and Palmtop Computers
• PCMCIA VCC and VPP Regulation/Switching
• Barcode Scanners
• Automotive Electronics
• SMPS Post-Regulators
• Voltage Reference
• High-Efficiency Linear Power Supplies