SPX5205

150mA, LOW-NOISE LDO VOLTAGE REGULATOR JULY 30, 2008 SPX5205 REV. H FEATURES ■ Low Noise Output LDO: 40μVRMS Possible ■ 1% Initial Accuracy ■ Very Low Quiecent Current: 70μA ■ Low Dropout Voltage (210mV at 150mA) ■ Current and Thermal Limiting ■ Reverse-Battery Protection ■ Wide Range of Fix Output Voltages:1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 5.0V ■ Zero Off-Mode Current ■ Small 5-Pin SOT-23 ■ Pin Compatible to MIC5205/MAX8877 (fixed Options Only) and AS3815 Fixed Output Voltage VOUT BYP 5 4 SPX5205 5 Pin SOT-23 1 VIN 2 GND 3 EN Adjustable Output Voltage VOUT ADJ/BYP 5 4 SPX5205 5 Pin SOT-23 1 VIN 2 GND 3 EN APPLICATIONS ■ ■ ■ ■ ■ ■ PDA Battery Powered Systems Cellular Phone Cordless Telephones Radio Control Systems Laptop, Palmtop, and Notebook Computers Now Available in Lead Free Packaging ■ ■ ■ ■ Portable Consumer Equipment Portable Instrumentation Bar Code Scanners SMPS Post-Regulator DESCRIPTION The SPX5205 is a positive voltage regulator with very low dropout voltage, output noise and ground current (750μA at 100mA). VOUT has a tolerance of less than 1% and is temperature compensated. Fixed output voltages 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V, and 5.0V and an adjustable version are available in a small 5-pin SOT-23 package. Other key features include zero off-mode current, reverse battery protection, thermal shutdown and current limit. The SPX5205 is an excellent choice for use in batterypowered applications, and where power con...