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TPS77618DR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS77618DR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page www.ti.com FEATURES DESCRIPTION APPLICATIONS IN IN EN GND OUT OUT RESET/ PG 6 7 5 16 14 13 3 + 10 F m C OUT (1) RESET/PG V OUT V IN 0.1 F m TPS775xx, TPS776xx SLVS232I – SEPTEMBER 1999 – REVISED AUGUST 2007 TPS775xx with RESET Output, TPS776xx with PG Output FAST-TRANSIENT-RESPONSE 500mA LOW-DROPOUT VOLTAGE REGULATORS • Open Drain Power-On Reset with 200ms Delay The TPS775xx and TPS776xx devices are designed (TPS775xx) to have a fast transient response and be stable with a 10 μF low ESR capacitor. This combination • Open Drain Power Good (TPS776xx) provides high performance at a reasonable cost. • 500mA Low-Dropout Voltage Regulator Because the PMOS device behaves as a low-value • Available in Fixed Output and Adjustable resistor, the dropout voltage is very low (typically Versions 169mV at an output current of 500mA for the • Dropout Voltage to 169mV (Typ) at 500mA TPS77x33) and is directly proportional to the output (TPS77x33) current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is • Ultralow 85μA Typical Quiescent Current very low and independent of output loading (typically • Fast Transient Response 85 μA over the full range of output current, 0mA to • 2% Tolerance Over Specified Conditions for 500mA). These two key specifications yield a Fixed-Output Versions significant improvement in operating life for battery-powered systems. This LDO family also • 8-Pin SOIC and 20-Pin TSSOP PowerPAD™ features a sleep mode; applying a TTL high signal to (PWP) Packages EN (enable) shuts down the regulator, reducing the • Thermal Shutdown Protection quiescent current to 1 μA at TJ = +25°C. The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the • FPGA Power event of an undervoltage condition. An internal • DSP Core and I/O Voltages comparator in the TPS775xx monitors the output voltage of the regulator to detect an undervoltage Typical Application Circuit condition on the regulated output voltage. (Fixed Voltage Options) Power good (PG) of the TPS776xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator. The TPS775xx and TPS776xx are offered in 1.5V, 1.6V (TPS77516 only), 1.8V, 2.5V, 2.8V (TPS77628 only), and 3.3V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5V to 5.5V for the TPS77501 and 1.2V to 5.5V for the TPS77601). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS775xx and TPS776xx families are available in 8-pin SOIC and 20-pin TSSOP packages. 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. PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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