The TPS51461 is a fully integrated synchronous buck regulator employing D-CAP+™. It is used for up to 5-V step-down where system size is at its premium, performance and optimized BOM are must-haves.
This device fully supports Intel system agent applications with integrated 2-bit VID function.
The TPS51461 also features two switching frequency settings (700 kHz and 1 MHz), skip mode, pre-bias startup, programmable external capacitor soft-start time/voltage transition time, output discharge, internal VBST Switch, 2-V reference (±1%), power good and enable.
The TPS51461 is available in a 4 mm × 4 mm, 24-pin, QFN package (Green RoHs compliant and Pb free) and is specified from 0°C to 85°C.
| Vin (min) (V) | 3.3 |
| Vin (max) (V) | 5 |
| Vout (min) (V) | 0.675 |
| Vout (max) (V) | 0.9 |
| Iout (max) (A) | 6 |
| Iq (typ) (mA) | 1.1 |
| Switching frequency (min) (kHz) | 700 |
| Switching frequency (max) (kHz) | 1000 |
| Features | Adaptive/Dynamic Voltage Scaling, Enable, Light load efficiency, Output discharge, Power good, Soft Start Adjustable, Synchronous Rectification |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | D-CAP+ |
| Duty cycle (max) (%) | 84 |
| Type | Converter |
| VQFN (RGE) | 24 | 16 mm² 4 x 4 |
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