Packaging information
| Package | Pins VQFN-HR (RNN) | 18 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS56C231
- 4.5-V to 17-V input range without external bias
- 3.8-V to 17-V input range with external bias
- Supports 12-A continuous output current
- TPS56C231 supports 15-A peak current
- Integrated 7.8-mΩ and 3.2-mΩ MOSFETs
- 0.6-V ±1% reference voltage across a –40°C to 125°C junction temperature range
- 0.6-V to 5.5-V output voltage range
- 146-µA low quiescent current
- D-CAP3™ control mode for fast transient response
- Supports ceramic output capacitors
- Selectable fSW of 400 kHz, 800 kHz, and 1200 kHz
- Selectable FCCM (forced continuous conduction mode) for tight output voltage ripple
- Selectable Eco-mode (auto skip mode) for high light-load efficiency
- Optional external 5-V bias for enhanced efficiency
- Prebiased start-up capability
- Adjustable soft start with a default 1.2-ms soft-start time
- Power-good indicator to monitor output voltage
- Two adjustable current limit settings with hiccup restart: TPS56C231 (14.7 A, 17 A) and TPS56C231L (11.5 A, 13.8 A)
- Non-latched protections for UV, OV, OT, and UVLO
- Pin-to-pin compatible with 12-A TPS56C215, and 8-A TPS568231 and TPS568215
- –40°C to 125°C operating junction temperature
- 3.5-mm × 3.5-mm, 18-pin HotRod™ QFN package
Description for the TPS56C231
The TPS56C231 is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.
The TPS56C231 has competitive features including a very accurate reference voltage, fast load transient response, and no requirement for external compensation, adjustable current limit, and both Eco-mode and FCCM operation modes for selection at light-load condition through the configuration of the MODE pin. To attain high efficiency at light load, Eco-mode can be selected. To support tight output voltage ripple requirement, FCCM can be selected. The TPS56C231 operates from a –40°C to 125°C junction temperature range.