Packaging information
| Package | Pins LQFN-CLIP (RVF) | 40 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS549B22
- Input voltage (PVIN): 1.5V to 18V
- Input bias voltage (VDD) range: 4.5V to 22V
- Output voltage range: 0.6V to 5.5V
- Integrated, 4.1mΩ and 1.9mΩ power MOSFETs with 25A continuous output current
- Voltage reference 0.6V to 1.2V in 50mV steps using VSEL pin
- ±0.5%, 0.9VREF tolerance range: –40°C to +125°C junction temperature
- True differential remote sense amplifier
- D-CAP3™ control mode
- Adaptive on-time control with 8 PMBus frequencies: 315kHz, 425kHz, 550kHz, 650kHz, 825kHz, 900kHz, 1.025MHz, 1.125MHz
- Temperature compensated and programmable current limit with RILIM and OC clamp
- Choice of hiccup or latch-off OVP or UVP
- VDD UVLO External Adjustment by Precision EN
- Prebias start-up support
- Eco-mode and FCCM selectable
- Full suite of fault protection and PGOOD
- Standard VOUT_COMMAND and VOUT_MARGIN (HIGH and LOW)
- Pin-strapping and on-the-fly programming
- Fault reporting and warning
- NVM backup for selected commands
- 1MHz PMBus with PEC and SMB_ALRT#
- Create a custom design using the TPS549B22 with the WEBENCH Power Designer
Description for the TPS549B22
The TPS549B22 device is a compact single buck converter with adaptive on-time, D-CAP3 control mode. The device is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.
This device features full differential sense and TI integrated FETs with a high-side on-resistance of 4.1mΩ and a low-side on-resistance of 1.9mΩ. The device also features an accurate 0.5%, 0.9V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.
The TPS549B22 device is available in 7mm × 5mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).