The TPS40056 is part of a family of high-voltage, wide input, synchronous, step-down converters. The TPS40056 offers design flexibility with a variety of user programmable functions, including soft-start, operating frequency, high-side current limit, and loop compensation. The TPS40056 is also synchronizable to an external supply. It incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction. The externally programmable short circuit protection provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.
PowerPAD is a trademark of Texas Instruments.
| Vin (min) (V) | 8 |
| Vin (max) (V) | 40 |
| Vout (min) (V) | -0.3 |
| Vout (max) (V) | 6 |
| Iout (max) (A) | 0.0002 |
| Iq (typ) (mA) | 1.5 |
| Switching frequency (min) (kHz) | 100 |
| Switching frequency (max) (kHz) | 1000 |
| Features | Synchronous Rectification, Tracking, UVLO Fixed |
| Operating temperature range (°C) | -40 to 85 |
| Regulated outputs (#) | 1 |
| Number of phases | 1 |
| Rating | Catalog |
| Control mode | Voltage mode |
| Type | Controller |
| HTSSOP (PWP) | 16 | 32 mm² 5 x 6.4 |