TPS5140PAGR ,Quad Output (3 Buck, 1 Boost) High Efficiency DC/DC Controller for Notebook PC Power TPS5140 FOUR-CHANNEL DC/DC CONTROLLER FOR NOTEBOOK PC POWER SLVS305A – DECEMBER 2000 – REVISED JAN ..
TPS51427 ,Dual D-CAP橫ode Synchronous Step Down Controller for Notebook Power Railsfeatures a low-dropout (LDO) regulator that providesa 5-V/3.3-V output, or adjustable from 0.7-V to ..
TPS51427A ,Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85features a low-dropout (LDO) regulator that provides– 0.7 V to 5.9 V (Channel1)a 5-V/3.3-V output, ..
TPS51427ARHBR ,Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functio ..
TPS51427ARHBRG4 , DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER RAILS
TPS51427ARHBT ,Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85FEATURES DESCRIPTION23• Fixed-Frequency Emulated On-Time Control;The TPS51427A is a dual synchronou ..
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 ..
TPS5140PAGR
Quad Output (3 Buck, 1 Boost) High Efficiency DC/DC Controller for Notebook PC Power
Adjustable Down to 1.2 V Synchronous-Buck Operation for High
Efficiency PWM Mode Control Auto PWM/SKIP Mode for High
Efficiency Under All Load Conditions High Speed Error Amplifier Separate Standby Control and Over
Current Protection for Each Channel Over Voltage and Under Voltage
Protection Programmable Short Circuit Protection Power Good With Programmable Delay
Time 5 V and 3.3 V Linear Regulators
descriptionThe TPS5140 is a dc/dc controller that incorporates three synchronous-buck controllers and one
nonsynchronous 12-V boost converter on one chip to power the voltage rails needed by notebook peripheral
components. On-chip high-side and low-side synchronous rectifier drivers are integrated to drive less expensive
N-channel power MOSFETs. The nonsynchronous boost converter includes the N channel power MOSFET and
supports 120 mA for the PCMCIA power supply. The outputs are controlled independently and two of the
synchronous-buck controllers operate 180 degrees out of phase, with the third lowering the input current ripple
and allowing a smaller input capacitance to reduce power supply cost. For higher efficiency under all load
conditions, the TPS5140 automatically adjusts each channel from the PWM mode to the skip mode
independently. The skip mode enables a lower operating frequency and shortens the pulse width to the low side
MOSFETs, thereby increasing the efficiency under light load conditions. To further extend battery life, the
TPS5140 features dead-time control and very low quiescent current. Resistorless current protection and the
fixed high-side driver voltage simplify the system design and reduce the external parts count.
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.
