TPS51427RHBR ,Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functio ..
TPS51427RHBT ,Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85FEATURESDESCRIPTION23• Fixed-Frequency Emulated On-Time Control;Frequency Selectable from Three Opt ..
TPS51461RGER ,3.3V to 5V Input, 6A, D-CAP+ Mode Synchronous Step-Down Converter with 2-Bit VID 24-VQFN -40 to 85features two switching frequency• Auto Skip Modesettings (700 kHz and 1 MHz), skip mode, pre-bias• ..
TPS51462RGER ,3.3-V/5-V Input, D-CAP+? Mode Synchronous Step-Down Integrated FETs Converter With 2-Bit VID 24-VQFN -40 to 85features two switching frequency• Selectable 700-kHz and 1-MHz Frequencysettings (700 kHz and 1 MHz ..
TPS51462RGET ,3.3-V/5-V Input, D-CAP+? Mode Synchronous Step-Down Integrated FETs Converter With 2-Bit VID 24-VQFN -40 to 85ELECTRICAL CHARACTERISTICSover recommended free-air temperature range, V = 5.0 V, V = V = 5 V, MODE ..
TPS51463RGER ,3.3-V/5-V Input, D-CAP+? Mode Synchronous Step-Down Integrated FETs Converter with 2-Bit VID 24-VQFN -40 to 85ELECTRICAL CHARACTERISTICSover recommended free-air temperature range, V = 5.0 V, V = V = 5 V, MODE ..
TSC80251G1D-16CB , Extended 8-bit Microcontroller with Serial Communication
TSC80251G1D-16CB , Extended 8-bit Microcontroller with Serial Communication
TSC80251G1D-24CA , Extended 8-bit Microcontroller with Serial Communication
TSC80251G2D-16CB ,B/16-BIT MICROCONTROLLER WITH SERIAL COMMUNICATION INTERFACESFeatures• Pin and Software Compatibility with Standard 80C51 Products and 80C51Fx/Rx/Rx+• Plug-In R ..
TSC80251G2D-24CB ,8/16-bit Microcontroller with Serial Communication Interfacesfeatures.TSC80251G2D derivatives are optimized for speed and for low power consumption on a wide vo ..
TSC80251G2D-24IA ,8/16-bit Microcontroller with Serial Communication InterfacesFeatures• Pin and Software Compatibility with Standard 80C51 Products and 80C51Fx/Rx/Rx+• Plug-In R ..
TPS51427-TPS51427RHBR-TPS51427RHBT
Dual D-CAP橫ode Synchronous Step Down Controller for Notebook Power Rails
TPS51427 www.ti.com................................................................................................................................................ SLUS819B–APRIL 2008–REVISED SEPTEMBER 2008 DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER RAILS 1 FEATURES DESCRIPTION 23• Fixed-Frequency Emulated On-Time Control; Frequency Selectable from Three Options The TPS51427 is a dual synchronous step-down controller designed for notebook and mobile • D-CAP™ Mode Enables Fast Transient communications applications. This device is part of a Response Less than 100 ns low-cost suite of notebook power bus regulators that • Advanced Ramp Compensation Allows Low enables system designs with low external component Output Ripple with Minimal Jitter counts. The TPS51427 includes two • Selectable PWM-Only/OOA™/Auto-Skip Modes pulse-width-modulation (PWM) controllers, SMPS1 and SMPS2. The output of SMPS1 can be adjusted • Wide Input Voltage Range: 5.5 V to 28 V from 0.7 V to 5.9 V, while the output of SMPS2 can • Dual Fixed or Adjustable SMPS: be adjusted from 0.5 V to 2.5 V. This device also – 0.7 V to 5.9 V (Channel1) features a low-dropout (LDO) regulator that provides a 5-V/3.3-V output, or adjustable from 0.7-V to 4.5-V – 0.5 V to 2.5 V (Channel2) output via LDOREFIN. The fixed-frequency emulated • Fixed 3.3-V/5-V, or Adjustable Output 0.7-V to adaptive on-time control supports seamless operation 4.5-V LDO; Capable of Sourcing 100 mA between PWM mode under heavy load conditions • Fixed 3.3-VREF Output Capable of Sourcing and reduced frequency operation at light loads for 10 mA high-efficiency down to the milliampere range. An integrated boost switch enhances the high-side • Temperature Compensated Low-Side R DS(on) MOSFET to further improve efficiency. The main Current Sensing control loop is the D-CAP™ mode that is optimized • Adaptive Gate Drivers with Integrated Boost for low equivalent series resistance (ESR) output Switch capacitors such as POSCAP or SP-CAP. Advanced • Bootstrap Charge Auto Refresh ramp compensation minimizes jitter without degrading line and load regulation. R current sensing DS(on) • Integrated Soft Start, Tracking Soft Stop methods offers maximum cost saving. • Independent PGOOD and EN for Each Channel The TPS51427 supports supply input voltages that range from 5.5 V to 28 V. It is available in the 32-pin, APPLICATIONS 5-mm × 5-mm QFN package (Green, RoHs- • Notebook I/O and System Bus Rails compliant, and Pb-free). The device is specified from • Graphics Application –40°C to +85°C. • PDAs and Mobile Communication Devices TPS51427 1 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. 2D-CAP, OOA are trademarks of Texas Instruments. 3All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
