TPS51225RUKT
Active5.5-V TO 24-V, DUAL-SYNCHRONOUS BUCK CONTROLLER WITH 5-V AND 3.3-V LDOS
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TPS51225RUKT
Active5.5-V TO 24-V, DUAL-SYNCHRONOUS BUCK CONTROLLER WITH 5-V AND 3.3-V LDOS
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS51225RUKT |
|---|---|
| Frequency - Switching | 300 kHz, 355 kHz |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-WQFN (3x3) |
| Topology | Step-Down (Buck) Synchronous (2), Linear (LDO) (2) |
| Voltage - Supply [Max] | 24 V |
| Voltage - Supply [Min] | 5.5 V |
| Voltage/Current - Output 1 | Controller |
| Voltage/Current - Output 2 | Controller |
| Voltage/Current - Output 3 | 100 mA, 3 V |
| w/LED Driver | False |
| w/Sequencer | False |
| w/Supervisor | False |
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 | $ 2.56 | |
| 10 | $ 2.30 | |||
| 25 | $ 2.17 | |||
| 100 | $ 1.85 | |||
| Digi-Reel® | 1 | $ 2.56 | ||
| 10 | $ 2.30 | |||
| 25 | $ 2.17 | |||
| 100 | $ 1.85 | |||
| Tape & Reel (TR) | 250 | $ 1.22 | ||
| 500 | $ 1.07 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.92 | |
| 100 | $ 1.59 | |||
| 250 | $ 1.14 | |||
| 1000 | $ 0.86 | |||
Description
General part information
TPS51225C Series
The TPS51225/B/C is a cost-effective, dual-synchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency. The TPS51225/B/C supports high efficiency, fast transient response and provides a combined power-good signal. Adaptive on-time, D-CAP™ control provides convenient and efficient operation. The device operates with supply input voltage ranging from 5.5 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51225/B/C is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified from –40°C to 85°C.
The TPS51225/B/C is a cost-effective, dual-synchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency. The TPS51225/B/C supports high efficiency, fast transient response and provides a combined power-good signal. Adaptive on-time, D-CAP™ control provides convenient and efficient operation. The device operates with supply input voltage ranging from 5.5 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51225/B/C is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified from –40°C to 85°C.
Documents
Technical documentation and resources
