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Product InformationFeatures
Description
The TPS51220 is a dual synchronous buck regulator controller with 2 LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220 supports high efficiency, fast transient response and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 28 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to 1 MHz by a resistor, and each channel runs 180° out of phase. The TPS51220 can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220 is available in the 32 pin 5x5 QFN package and is specified from -40°C to 85°C. |
| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Samples |
| TPS51220RHBR | ACTIVE | -40 to 85 | 2.25 | 1ku | QFN (RHB) | 32 | View | 3000 | LARGE T&R | ||
| TPS51220RHBRG4 | ACTIVE | -40 to 85 | 2.25 | 1ku | QFN (RHB) | 32 | View | 3000 | LARGE T&R | ||
| TPS51220RHBT | ACTIVE | -40 to 85 | 2.50 | 1ku | QFN (RHB) | 32 | View | 250 | SMALL T&R | Purchase Samples | |
| TPS51220RHBTG4 | ACTIVE | -40 to 85 | 2.50 | 1ku | QFN (RHB) | 32 | View | 250 | SMALL T&R | Purchase Samples | |
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| Reported Distributor Inventory as of 10:04 AM GMT, 06 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksTPS51220RHBR | |||
| Worldwide | DigiKey | >1k | |
| TI Lead Time*: 20 WeeksTPS51220RHBRG4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksTPS51220RHBT | |||
| Americas | Newark | 166 | |
| Asia | WPI | 132 | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksTPS51220RHBTG4 | |||
| Worldwide | DigiKey | Available | |
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| TPS51220RHBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS51220RHBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS51220RHBT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TPS51220RHBTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for TPS51220 
| Name | Part # | Company | Tool / Software Type |
| TPS51220EVM High Performance Synchronous Buck Using the TPS51220 Evaluation Module | TPS51220EVM | Texas Instruments | Development Boards/EVMs |
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