SPX29301T5-L-3-3

SPX29300 / SPX29301 / SPX29302 Data Sheet 3A Low Dropout Voltage Regulator General Description Features The SPX29300/01/02 are 3A, highly accurate voltage regulators with a low dropout voltage of 600mV (typical) at 3A. ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. On-Chip trimming adjusts the reference voltage to 1% initial accuracy. The SPX29300 is offered in a 3-pin TO-263 package, the SPX29301 and SPX29302 are offered in a 5-pin TO-263 package. 3A guaranteed output current Low dropout voltage of 600mV @ 3A Adjustable output down to 1.25V 1% output accuracy Tight load and line regulation Fast transient response Reverse battery protection Zero current shutdown (SPX29301/02) Power Good flag (SPX29301) Lead free 3-pin TO-263 and 5-pin TO-263 packages Applications ■ ■ ■ ■ Adjustable power supplies Constant current regulators Audio and video / graphic cards Battery chargers Ordering Information - page 9 Typical Application Diagram Figure 1: SPX29300 and SPX29302 Application Diagrams • www.maxlinear.com• Rev 2.2.2 SPX29300 / SPX29301 / SPX29302 3A Low Dropout Voltage Regulator Data Sheet Revision History Revision History Revision Release Date Change Description 1.0.0 12/17/2009 Initial Release of Datasheet. 2.0.0 3/31/2010 Reformat of datasheet Inserted ESD data Modified Dropout Voltage and Ground Current values in electrical characteristics table Corrected typographical error in result of calculus in note 8 Removed “Gound Current vs Load Current”, “Enable Threshold vs Temperature” and “Power Supply Rejection Ratio curves” Updated “Dropout Voltage vs Load Current”, “Line Regulation” and “Load Regulation” curves Added “start Up” curve 2.1.0 10/19/2010 Corrected Adjustable Regulator Design paragraph equation 2.2.0 12/21/2016 Updated package specification and ordering information. 2.2.1 8/30/2019 Updated to MaxLinear format. Updated ordering information and moved to end. Obsolete 1.8V version (SPX29300T-L-1-8/TR) removed. 2.2.2 12/15/2020 Clarified that package tabs are GND on pinout. 12/15/20 Rev 2.2.2 ii SPX29300 / SPX29301 / SPX29302 3A Low Dropout Voltage Regulator Data Sheet Table of Contents Table of Contents General Description............................................................................................................................................. i Features............................................................................................................................................................... i Applications ......................................................................................................................................................... i Typical Application Diagram............................................................................................................................... i Specifications ..................................................................................................................................................... 1 Absolute Maximum Ratings...........................................................................................................................................1 ESD Ratings ..................................................................................................................................................................1 Operating Ratings .........................................................................................................................................................1 Electrical Characteristics ...............................................................................................................................................2 Block Diagram..................................................................................................................................................... 4 Pin Information ................................................................................................................................................... 4 Typical Performance Characteristics................................................................................................................ 5 Theory of Operation ........................................................................................................................................... 6 Thermal Considerations ............................................................................................................................................... 6 TO-263 Design Example .............................................................................................................................................. 6 Capacitor Requirements............................................................................................................................................... 6 Minimum Load Current ................................................................................................................................................. 6 Adjustable Regulator Design ........................................................................................................................................ 6 Error Flag ..................................................................................................................................................................... 6 Enable Input ................................................................................................................................................................. 6 Typical Application Circuits .......................................................................................................................................... 6 Mechanical Dimensions ..................................................................................................................................... 7 Ordering Information.......................................................................................................................................... 9 12/15/20 Rev 2.2.2 iii SPX29300 / SPX29301 / SPX29302 3A Low Dropout Voltage Regulator Data Sheet List of Figures List of Figures Figure 1: SPX29300 and SPX29302 Application Diagrams .................................................................................. i Figure 2: SPX29300, SPX29301, SPX29302 Block Diagram............................................................................... 4 Figure 3: SPX29300, SPX29301, SPX29302 Pin Assignments ........................................................................... 4 Figure 4: Dropout Voltage vs. Load Current ......................................................................................................... 5 Figure 5: Startup ................................................................................................................................................... 5 Figure 6: Line Regulation IOUT = 10mA, VOUT = 3.3V .......................................................................................... 5 Figure 7: Load Regulation VOUT = 3.3V ............................................................................................................... 5 Figure 8: Mechanical Dimensions, 3-pin and 5-pin TO-263 ................................................................................. 7 Figure 9: Mechanical Dimensions, 3-pin and 5-pin TO-263 ................................................................................. 8 12/15/20 Rev 2.2.2 iv SPX29300 / SPX29301 / SPX29302 3A Low Dropout Voltage Regulator Data Sheet List of Tables List of Tables Table 1: Absolute Maximum Ratings .................................................................................................................... 1 Table 2: ESD Ratings ........................................................................................................................................... 1 Table 3: Operating Ratings................................................................................................................................... 1 Table 4: Electrical Characteristics ........................................................................................................................ 2 Table 5: Ordering Information............................................................................................................................... 9 12/15/20 Rev 2.2.2 v SPX29300 / SPX29301 / SPX29302 3A Low Dropout Voltage Regulator Data Sheet Specifications Specifications Absolute Maximum Ratings Important: These are stress rating only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum ratings conditions for extended periods of time may affect reliability. Table 1: Absolute Maximum Ratings Parameter Minimum Input voltage VIN(1) Storage temperature -65 Lead temperature (soldering, 5 sec) Maximum Units 20.0 V 150 °C 260 °C 1. Maximum positive supply voltage of 20V must be of limited duration (