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TPS5300 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS5300 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 21 page TPS5300 SLVS334A – DECEMBER 2000 – REVISED SEPTEMBER 2001 MOBILE CPU POWER SUPPLY CONTROLLER 8,1 mm x 11 mm 1 www.ti.com FEATURES D Power Stage Input Voltage Range of 3 V to 28 V D Single-Chip Dynamic Output Voltage Transition Solution D Hysteretic Controller Provides Fast Transient Response Time and Reduced Output Capacitance D Two Linear Regulator Controllers Regulating Clock and I/O Voltages D Internal 2-A (Typ) Gate Drivers With Bootstrap Diode For Increased Efficiency D 5-Bit Dynamic VID D Active Droop Compensation Enables Tight Dynamic Regulation for Reduced Output Capacitance D VGATE Terminal Provides Power-Good Signal for All Three Outputs D Enable External Terminal (ENABLE_EXT) D 32-Pin TSSOP PowerPAD Enhances Thermal Performance D 1% Reference Voltage Accuracy APPLICATIONS D Intel Mobile CPUs With SpeedStep Technology D AMD Mobile CPUs With PowerNow! Technology D DSP Processors D Other One, Two, or Three Output Point-of-Load Applications DESCRIPTION The TPS5300 is a hysteretic synchronous-buck controller, with two on-chip linear regulator controllers, incorporating dynamic output voltage positioning technology. The TPS5300 provides a precise, programmable supply voltage to a mobile processor or other processor power applications. A ripple regulator provides the core voltage, while two linear regulator drivers regulate external NPN power transistors for the I/O and CLK voltages. A 5-bit voltage identification (VID) DAC allows programming for the ripple regulator voltage to values between 0.925 V to 1.275 V in 25-mV steps and 1.3 V to 2 V in 50-mV steps. Other voltage ranges and steps can be easily set. The fast transient response time and active voltage DROOP positioning reduce the number of output capacitors required to keep the output voltage within tight dynamic voltage regulation limits. The power saving mode (PSM) allows the user to select a single operating ramp or allows the controller to automatically switch to lower frequencies at low loads. The high-gain current sense differential amplifier allows the use of small-value sense resistors that minimize conduction losses. VI = 12 V Output Voltage Transient Load Response PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 2001, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Speed Step is a trademark of Intel Corp. PowerNow is a trademark of Advanced Micro Devices Inc. PowerPAD is a trademark of Texas Instruments. |
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