Description
TPS51221RTVR Texas Instruments - Yeehing Electronics
3-V to 28-V, synchronous dual-output peak current mode buck controller for notebook power
Pricing (USD)
Quantity | Unit Price |
1 — 99 | 4.008 |
100 — 249 | 3.267 |
250 — 999 | 2.568 |
1,000 + | 1.52 |
The above prices are for reference only.
Specifications
Manufacturer | Texas Instruments |
Product Category | Switching Controllers |
RoHS | Y |
Number of Outputs | 2 Output |
Switching Frequency | 1000 kHz |
Output Voltage | 1 V to 12 V |
Output Current | 20 A |
Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature | + 85 C |
Mounting Style | SMD/SMT |
Package / Case | WQFN-32 |
Packaging | Reel |
Operating Temperature Range | - 40 C to + 85 C |
Series | TPS51221 |
Type | Current Mode PWM Controllers |
Brand | Texas Instruments |
Moisture Sensitive | Yes |
Operating Supply Current | 1.3 mA |
Product Type | Switching Controllers |
Factory Pack Quantity | 3000 |
Subcategory | PMIC - Power Management ICs |
Unit Weight | 0.001411 oz |
For more information, please refer to datasheet
Documents
TPS51221RTVR Datasheet |
More Information
The TPS51221 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 TPS51221 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. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The high duty (99%) operation and 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 1MHz by a resistor, and each channel runs 180° out of phase. The TPS51221 can also synchronize to the 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.