| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
50,000 pcs
|
50000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
15,000 pcs
|
15000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
6,636 pcs
|
6636 pcs | On Request | 1 | On Request | On Request | 21+ | On Request | On Request | |
|
1,602 pcs
|
1602 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1,224 pcs
|
1224 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
445 pcs
|
445 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
79 pcs
|
79 pcs | On Request | 1 | On Request | On Request | 22+ | On Request | On Request | |
|
36 pcs
|
36 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Current | |
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| Synchronous Rectifier | |
| Tape & Reel | |
| Topology | |
| Voltage |
The Texas Instruments TPS65251RHAR is a high-current, synchronous, triple step-down (buck) switcher designed for power management applications. It features a wide input supply voltage range from 4.5V to 18V, making it suitable for various power sources.
This converter offers three independent buck outputs with continuous loading capabilities of 3A for Buck 1 and 2A for Buck 2 and 3. The output voltage is adjustable down to 0.8V with a reference accuracy of 1%. The switching frequency is also adjustable from 300 kHz to 2.2 MHz, allowing for design flexibility.
Key features include adjustable current limit, dedicated enable pins for each buck, external synchronization, power good indication, and soft-start functionality. The device operates within an ambient temperature range of -40°C to 125°C.
The TPS65251RHAR is supplied in a 40-pin VQFN package measuring 6mm x 6mm, designed for surface mounting. Its synchronous rectification and current-mode control contribute to efficient power conversion.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.18 | $2.18 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 4.5V to 18V.
Buck 1 provides up to 3A continuous (3.5A peak), and Bucks 2 and 3 provide up to 2A continuous (2.5A peak).
The operating junction temperature range is -40°C to 125°C.
It is available in a 40-VQFN Exposed Pad package (6x6 mm) for surface mount mounting.
The switching frequency is programmable from 300 kHz to 2.2 MHz.
The output voltage is adjustable from 0.8V to 17V.