TPS51221RTVR ,Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller 32-WQFN -40 to 85FEATURES APPLICATIONS• Notebook Computer System and I/O Bus2• Input Voltage Range: 4.5 V to 28 V• P ..
TPS51221RTVT ,Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller 32-WQFN -40 to 85maximum ratings may cause permanent damage to the device. These are stress ratingsonly and function ..
TPS51222RTVR ,Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Power Controller 32-WQFN -40 to 85FEATURES2• Input Voltage Range: 4.5 V to 32 V APPLICATIONS• Notebook Computer System and I/O Bus• O ..
TPS51225BRUKR ,Dual Synchronous Step-Down Controller with 5-V and 3.3-V LDOs 20-WQFN -40 to 85FEATURES APPLICATIONS2• Input Voltage Range: 5.5 V to 24 V • Notebook Computers• Output Voltages: 5 ..
TPS51225CRUKR ,Dual Synchronous Step-Down Controller with 5-V and 3.3-V LDOs 20-WQFN -40 to 85FEATURES APPLICATIONS2• Input Voltage Range: 5.5 V to 24 V • Notebook Computers• Output Voltages: 5 ..
TPS5124DBT ,TPS5124 Dual Channel Synchronous Step-Down PWM ControllerSLUS571 − SEPTEMBER 2003
TSC5904CX RF , Low Vcesat NPN Transistor
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 ..
TPS51221RTVR-TPS51221RTVT
Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller
TPS51221 www.ti.com............................................................................................................................................... SLVS786A–NOVEMBER 2007–REVISED MARCH 2009 Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller 1 FEATURES APPLICATIONS • Notebook Computer System and I/O Bus 2• Input Voltage Range: 4.5 V to 28 V • Point of load in LCD TV, MFP • Output Voltage Range: 1 V to 12 V • Selectable Light Load Operation (Continuous / DESCRIPTION Auto Skip / Out-Of-Audio™ Skip) The TPS51221 is a dual synchronous buck regulator • Programmable Droop Compensation controller with 2 LDOs. It is optimized for 5-V/3.3-V • Voltage Servo Adjustable Soft Start system controller, enabling designers to cost • 200 kHz to 1 MHz Fixed Frequency PWM effectively complete 2-cell to 4-cell notebook system power supply. The TPS51221 supports high • Current Mode Architecture efficiency, fast transient response and 99% duty cycle • 180° Phase Shift Between Channels operation. It supports supply input voltage ranging • Resistor or Inductor DCR Current Sensing from 4.5 V to 28 V, and output voltages from 1 V to 12 V. Peak current mode supports stability operation • Powergood Output for each channel with lower ESR capacitor and output accuracy. The • OCL/OVP/UVP/UVLO protections high duty (99%) operation and wide input/ output • Current Monitor Output for CH1 voltage range supports flexible design for small • Thermal Shutdown (Non-latch) mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to • Output Discharge Function (Disable option) 1MHz by a resistor, and each channel runs 180° out • Integrated Boot Strap MOSFET Switch of phase. The TPS51221 can also synchronize to the • QFN32 (RTV) external clock, and the interleaving ratio can be adjusted by its duty. The TPS51221 is available in the 32-pin 5×5 QFN package and is specified from –40°C to 85°C. TYPICAL APPLICATION CIRCUIT VREG5 VBAT VBAT Q11 5V/100mA C12 Q21 C22 C01 C14 C24 L2 L1 PGND PGND VO2 Q12 VO1 GND 3.3V PGND C21 5.0V PGND Q22 C11 32 31 30 29 28 27 26 25 PGND PGND PGND PGND 1 24 DRVH1 DRVH2 VO1 2 V5SW VIN 23 VBAT R01 VREG3 3 RF VREG3 22 3.3V/10mA C03 GND EN1 4 EN1 EN2 21 EN2 TPS51221RTV (QFN32) PGOOD1 5 PGOOD1 PGOOD2 20 PGOOD2 GND SKIPSEL1 6 SKIPSEL1 SKIPSEL2 19 SKIPSEL2 PowerPAD R14 R24 7 CSP1 CSP2 18 C13 C23 CSN1 CSN2 8 17 9 10 11 12 13 14 15 16 GND EN VREG5 R02 IMON1 R21 R23 VO1 VO2 C04 R11 R12 R22 C02 R13 GND GND GND GND 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. 2Out-Of-Audio, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2009, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. SW1 VFB1 COMP1 VBST1 IMON1 DRVL1 EN VREG5 VREF2 GND TRIP DRVL2 COMP2 VBST2 VFB2 SW2
