MIC5319-1.8YD5-TR Microchip

MIC5319 500 mA, Cap Ultra-Low Dropout Regulator with High PSRR Features General Description Ultra-Low Dropout Voltage: 200 mV 500 mA The MIC5319 is a high performance, 500 mA LDO regulator, with high PSRR and very low noise, with low Input Voltage Range: 2.5V to 5.5V ground current. Output Voltage: Ideal for battery-operated applications, the MIC5319 - Adjustable: V = 1.25V REF features 1% accuracy, very low dropout voltage - Fixed: 1.3V, 1.8V, 1.85V, 2.5V, 2.6V, 2.7V, (typically 200 mV 500 mA), and low ground current 2.8V, 2.85V, 2.9V, 3.0V, 3.3V at light load (typically 90A). Equipped with a Stable with Low ESR Ceramic Output Capacitor logic-compatible enable pin, the MIC5319 can be set (10Hz to 100kHz Low Output Noise: 40 V RMS into a zero-off-mode current state, typically drawing Bandwidth) only 0.5 A current when disabled. Low Ground Current: 90 A Typical The MIC5319 is a Cap design operating with very High PSRR, up to 70 dB 1 kHz small ceramic output capacitors for stability, thereby Fast Turn-On Time: 40 s Typical reducing required board space and component cost. High Output Accuracy: The MIC5319 is available in fixed-output voltages and - 1.0% Initial Accuracy adjustable output versions in the compact 2mm x - 2.0% Over Temperature 2 mm DFN lead-less package or the thin SOT23-5 package. Thermal-Shutdown Protection Current-Limit Protection Logic-Controlled Enable Input Pin Available Packages: - 2 mm x 2 mm DFN, 500 mA Continuous - SOT23-5, 500 mA Peak Applications Cellular Phones PDAs Fiber Optic Modules Portable Electronics Notebook PCs Audio Codec Power Supplies Package Types MIC5319-X.XYML (FIXED) MIC5319YML (ADJ.) MIC5319-X.XYD5 6-Lead DFN (ML) 6-Lead DFN (ML) SOT23-5 (D5) (Top View) (Top View) (Top View) EN GND VIN 6 BYP EN 1 6 BYP 3 2 1 EN 1 EP EP 5 NC GND 2 5 ADJ GND 2 KWxx 4 VOUT VIN 3 4 VOUT VIN 3 45 BYP VOUT 2018 Microchip Technology Inc. DS20005876B-page 1MIC5319 Typical Application Circuit MIC5319 DFN-6 or SOT23-5 MIC5319-2.8 2.8V 500mA V IN VIN VOUT V OUT 1F EN BYP 0.1F 2.2F GND Functional Block Diagrams MIC5319 (Fixed Output Voltage) VIN VOUT EN QUICK- V REF START ERROR AMP BYP THERMAL SHUTDOWN CURRENT LIMIT MIC5319 GND MIC5319 (Adjustable Output Voltage) VOUT VIN EN QUICK- V REF START ERROR AMP BYP ADJ THERMAL SHUTDOWN CURRENT LIMIT MIC5319 GND DS20005876B-page 2 2018 Microchip Technology Inc.