DUAL D-CAP(TM) SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER RAILS

The TPS51427 is a dual synchronous Step-down controller designed for notebook and mobile Communications applications. This device is part of a low-cost suite of notebook power bus Regulators that enables system designs with low external component counts. The TPS51427 includes two pulse-width-modulation (PWM) controllers, SMPS1 and SMPS2. The output of SMPS1 CAN be adjusted from 0.7 V to 5.9 V, while the output of SMPS2 CAN be adjusted from 0.5 V to 2.5 V. This device also 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 output via LDOREFIN. The fixed-frequency emulated adaptive on-time control supports seamless operation between PWM mode under heavy load conditions and reduced frequency operation at light loads for high-efficiency down to the milliampere range. An integrated boost Switch enhances the high-side MOSFET to further improve efficiency. The main control loop is the D-CAP mode that is optimized for low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP. Advanced ramp compensation minimizes jitter without degrading line and load regulation. R DS(on) current sensing methods offers maximum cost saving. The TPS51427 supports supply input voltages that range from 5.5 V to 28 V. It is available in the 32-pin, 5-mm 5-mm QFN package (Green, RoHs- compliant, and Pb-free). The device is specified from 40 C to +85 C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPS51427RHBR Texas Instruments Dual D-CAP™Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85
TPS51427RHBRG4 Texas Instruments Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85
TPS51427ARHBT Texas Instruments Dual D-CAP™Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85
TPS51427ARHBRG4 Texas Instruments Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85
TPS51427ARHBTG4 Texas Instruments DUAL SWITCHING CONTROLLER, PQCC32, 5 X 5 MM, GREEN, PLASTIC, QFN-32
TPS51427RHBT Texas Instruments Dual D-CAP™Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85
TPS51427ARHBR Texas Instruments Dual D-CAP™Mode Synchronous Step Down Controller for Notebook Power with OOB Function Disabled 32-VQFN -40 to 85
TPS51427RHBTG4 Texas Instruments Dual D-CAP?Mode Synchronous Step Down Controller for Notebook Power Rails 32-VQFN -40 to 85
TPS51427 's PackagesTPS51427 's pdf datasheet
TPS51427RHBR QFN
TPS51427RHBT QFN




TPS51427 Pinout, Pinouts
TPS51427 pinout,Pin out
This is one package pinout of TPS51427,If you need more pinouts please download TPS51427's pdf datasheet.

TPS51427 Application circuits
TPS51427 circuits
This is one application circuit of TPS51427,If you need more circuits,please download TPS51427's pdf datasheet.


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TPS51427 Application Notes TPS51427 RoHS TPS51427 Circuits TPS51427 footprint