Gehäuseinformationen
| Gehäuse | Pins HSOIC (DDA) | 8 |
| Betriebstemperaturbereich (°C) -40 to 150 |
| Gehäusemenge | Träger 2.500 | LARGE T&R |
Merkmale von TPS54332
- 3.5-V to 28-V input voltage range
- Adjustable output voltage down to 0.8 V
- Integrated 80-mΩ high-side MOSFET supports up to 3.5-A continuous output current
- High-efficiency at light loads with a pulse-skipping Eco-mode
- Fixed 1-MHz switching frequency
- Typical 1-µA shutdown quiescent current
- Adjustable slow-start limits inrush currents
- Programmable UVLO threshold
- Overvoltage transient protection
- Cycle-by-cycle current limit, frequency foldback and thermal shutdown protection
- Available in thermally enhanced, 8-pin SOIC PowerPAD™ integrated circuit package
- Use TPS62933 for a 30 VIN converter with higher frequency, lower IQ, and improved EMI
- Create a custom design using the TPS54332 with the WEBENCH Power Designer
Beschreibung von TPS54332
The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates a low-R DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54332 is available in an 8-pin SOIC PowerPAD integrated circuit package.