SPX2931AM1-3.5

® SPX2931 100mA Low Dropout Voltage Regulator FEATURES ■ 3.3V and 3.5V Versions ■ Output Current in Excess of 100 mA ■ Input-Output Differential is 0.3 at 100mA ■ Mirror-Image Insertion Protection ■ Internal Thermal Protection ■ Available in TO-92 and SOT-89 Packages ■ Improved Version of the Industry Standard LM2931 ■ Reverse Battery, Internal Short Circuit, 20V Reverse Transient and 60V Load Dump Protection ■ Availiable with either 2% or 3% Output Accurancy at 25°C TO-92 (N) 1 2 3 SOT-89 (M1) 1 2 3 VOUT GND VIN VIN GND VOUT Bottom View Top View Now Available in Lead Free Packaging APPLICATIONS ■ Portable Instrumentation ■ Cordless Telephones ■ Radio Control Systems DESCRIPTION The SPX2931 is a low power, positive voltage regulator. This device is an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. The SPX2931 features offers very low quiescent currents (0.4 mA), and very low drop output voltage (50 mV at light load and 300 mV at 100 mA). The SPX2931 is offered in a 3-pin TO-92, and SOT-89 package. TYPICAL APPLICATIONS CIRCUIT VIN VOUT SPX2931 1µF C1 Gnd 100µF, ESR 0.05 to 0.6 ohms Date: 05/25/04 SPX2931 100mA Low Dropout Voltage Regulator © Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Power Dissipation (note 3) ........................................ Internally limited Lead Temp (soldering, 5 seconds) ............................................ 260°C Storage Temperature Range ..................................... -65°C to +150°C Input Supply Voltage Range ............................................. -0.3 to +30V ESD Rating (note 4) ...................................................................... 2kV RECOMMENDED OPERATING CONSITIONS Input Voltage Range ........................................................... 3.0 to 26V Operating Junction Temperature Range ..................... -40°C to 125°C TO-92ΘJA ............................................................................... 160°C/W SOT-89ΘJA ............................................................................ 110°C/W ELECTRICAL CHARACTERISTICS at VIN=6V, TA = 25°C, IO = 10 mA, COUT = 100 µF, unless otherwise specified. (Note 1) PARAMETER 3.3V Version Output Voltage (Note 2) 4V < VIN