TPS51220RHBR
Active3-V TO 28-V, SYNCHRONOUS PEAK CURRENT MODE BUCK CONTROLLER FOR NOTEBOOK POWER
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TPS51220RHBR
Active3-V TO 28-V, SYNCHRONOUS PEAK CURRENT MODE BUCK CONTROLLER FOR NOTEBOOK POWER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS51220RHBR |
|---|---|
| Applications | Controller, Notebook Power System |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-VQFN (5x5) |
| Voltage - Input [Max] | 28 V |
| Voltage - Input [Min] | 4.5 V |
| Voltage - Output [Max] | 12 V |
| Voltage - Output [Min] | 1 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.53 | |
| 10 | $ 3.17 | |||
| 25 | $ 3.00 | |||
| 100 | $ 2.60 | |||
| 250 | $ 2.47 | |||
| 500 | $ 2.21 | |||
| 1000 | $ 1.87 | |||
| Digi-Reel® | 1 | $ 3.53 | ||
| 10 | $ 3.17 | |||
| 25 | $ 3.00 | |||
| 100 | $ 2.60 | |||
| 250 | $ 2.47 | |||
| 500 | $ 2.21 | |||
| 1000 | $ 1.87 | |||
| Tape & Reel (TR) | 3000 | $ 1.77 | ||
| Texas Instruments | LARGE T&R | 1 | $ 2.67 | |
| 100 | $ 2.34 | |||
| 250 | $ 1.64 | |||
| 1000 | $ 1.32 | |||
Description
General part information
TPS51220A-Q1 Series
The TPS51220A-Q1 is a dual synchronous buck regulator controller with two 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 TPS51220A-Q1 supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 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 TPS51220A-Q1 can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A-Q1 is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 105°C.
The TPS51220A-Q1 is a dual synchronous buck regulator controller with two 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 TPS51220A-Q1 supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 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 TPS51220A-Q1 can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A-Q1 is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 105°C.
Documents
Technical documentation and resources
