TPS51275CRUKR
Active5.5-V TO 24-V, DUAL-SYNCHRONOUS BUCK CONTROLLER WITH VREG5 ALWAYS-ON LDO
TPS51275CRUKR
Active5.5-V TO 24-V, DUAL-SYNCHRONOUS BUCK CONTROLLER WITH VREG5 ALWAYS-ON LDO
Description
General part information
TPS51275 Series
The TPS51275, TPS51275B and TPS51275C are cost-effective, dual-synchronous buck controllers 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 TPS51275, TPS51275B and TPS51275C 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 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51275, TPS51275B and TPS51275C are available in a 20-pin, 3 mm x 3 mm, QFN package and is specified from –40°C to 85°C.
The TPS51275, TPS51275B and TPS51275C are cost-effective, dual-synchronous buck controllers 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 TPS51275, TPS51275B and TPS51275C 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 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51275, TPS51275B and TPS51275C are available in a 20-pin, 3 mm x 3 mm, QFN package and is specified from –40°C to 85°C.
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS51275CRUKR |
|---|---|
| Current (Output 3) | 100 mA |
| 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 |
| Package Length | 3 mm |
| Package Name | 20-WQFN |
| Package Width | 3 mm |
| Topology | Step-Down (Buck) Synchronous (2), Linear (LDO) (2) |
| Voltage - Supply (Maximum) | 24 VAC |
| Voltage - Supply (Minimum) | 5 V |
| Voltage (Output 3) | 3.3 V |
| Voltage/Current - Output 1 Options | Controller |
| Voltage/Current - Output 2 Mode | Controller |
| w/LED Driver | No |
| w/Sequencer | No |
| w/Supervisor | No |
Pricing
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