The TPS54327 device is an adaptive on-time D-CAP2™ mode synchronous buck converter. TheTPS54327 enables system designers to complete the suite of various end equipments power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54327 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54327 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54327 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from 40°C to 85°C.
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| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 18 |
| Vout (min) (V) | 0.76 |
| Vout (max) (V) | 7 |
| Iout (max) (A) | 3 |
| Iq (typ) (mA) | 0.8 |
| Switching frequency (min) (kHz) | 700 |
| Switching frequency (max) (kHz) | 700 |
| Features | Enable, Soft Start Adjustable, Synchronous Rectification |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | D-CAP2 |
| Duty cycle (max) (%) | 65 |
| Type | Converter |
| HSOIC (DDA) | 8 | 29.4 mm² 4.9 x 6 |
| VSON (DRC) | 10 | 9 mm² 3 x 3 |