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TPS79318YZQT Dataheets PDF



Part Number TPS79318YZQT
Manufacturers Texas Instruments
Logo Texas Instruments
Description 200-mA Low-Dropout Linear Regulator
Datasheet TPS79318YZQT DatasheetTPS79318YZQT Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS793 SLVS348L – JULY 2001 – REVISED MAY 2015 TPS793 Low-Noise, High PSRR, RF, 200-mA Low-Dropout Linear Regulators in NanoStar™ Wafer Chip Scale and SOT-23 1 Features •1 200-mA RF Low-Dropout Regulator With Enable • Available in Fixed-Voltage Versions from 1.8 V to 4.75 V and Adjustable (1.22 V to 5.5 V) • High PSRR (70 dB at 10 kHz) • Low Noise (32 μVRMS, TPS79328) • Fast Start-Up Time (50 μs) • Stable .

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS793 SLVS348L – JULY 2001 – REVISED MAY 2015 TPS793 Low-Noise, High PSRR, RF, 200-mA Low-Dropout Linear Regulators in NanoStar™ Wafer Chip Scale and SOT-23 1 Features •1 200-mA RF Low-Dropout Regulator With Enable • Available in Fixed-Voltage Versions from 1.8 V to 4.75 V and Adjustable (1.22 V to 5.5 V) • High PSRR (70 dB at 10 kHz) • Low Noise (32 μVRMS, TPS79328) • Fast Start-Up Time (50 μs) • Stable With a 2.2-μF Ceramic Capacitor • Excellent Load and Line Transient Response • Very Low Dropout Voltage (112 mV at 200 mA, TPS79330) • 5- and 6-Pin SOT23 (DBV) and NanoStar Wafer Chip Scale (YZQ) Packages 2 Applications • RF: VCOs, Receivers, ADCs • Audio • Cellular and Cordless Telephones • Bluetooth®, Wireless LAN • Handheld Organizers, PDAs 3 Description The TPS793 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in NanoStar™ wafer chip scale and SOT23 packages. NanoStar packaging gives an ultrasmall footprint as well as an ultralow profile and package weight, making these devices ideal for portable applications such as handsets and PDAs. Each device in the family is stable, with a small, 2.2-μF ceramic capacitor on the output. The TPS793 family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 112 mV at 200 mA, TPS79330). Each device achieves fast start-up times (approximately 50 μs with a 0.001-μF bypass capacitor) while consuming very low quiescent current (170 μA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 μA. The TPS79328 exhibits approximately 32 μVRMS of output voltage noise at 2.8-V output with a 0.1-μF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low-noise features as well as the fast response time. PART NUMBER TPS793 Device Information(1) PACKAGE BODY SIZE (NOM) SOT-23 (6) 2.90 mm × 1.60 mm SOT-23 (5) 2.90 mm × 1.60 mm DSBGA (5) 1.35 mm × 1.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit VIN VIN VOUT IN OUT TPS79328 VOUT 0.1 mF EN GND NR 10 mF 0.01 mF Ripple Rejection (dB) Ripple Rejection vs Frequency 100 VIN = 3.8 V 90 COUT = 2.2 mF 80 CNR = 0.1 mF 70 IOUT = 200 mA 60 50 IOUT = 10 mA 40 30 20 10 0 10 100 1 k 10 k 100 k 1 M 10 M Frequency (Hz) 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS793 SLVS348L – JULY 2001 – REVISED MAY 2015 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4 6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings ............................................................ 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 5 6.5 Electrical Characteristics .......................................... 6 6.6 Typical Characteristics .............................................. 7 7 Detailed Description ............................................ 11 7.1 Overview ................................................................. 11 7.2 Functional Block Diagrams ..................................... 11 7.3 Feature Description................................................. 12 7.4 Device Functional Modes........................................ 13 8 Application and Implementation ........................ 14 8.1 Application Information............................................ 14 8.2 Typical Application .................................................. 15 8.3 Do's and Don'ts ....................................................... 17 9 Power Supply Recommendations...................... 17 10 Layout................................................................... 18 10.1 Layout Guidelines ................................................. 18 10.2 Layout Example .................................................... 18 10.3 Power Dissipation ................................................. 18 11 Device and Documentation Support ................. 20 11.1 Device Support.


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