TPS51221RTVT 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	4.81
100 — 249	3.921
250 — 999	3.082
1,000 +	1.83

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	250
Subcategory	PMIC - Power Management ICs
Unit Weight	0.001411 oz

For more information, please refer to datasheet

Documents

TPS51221RTVT 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.