Texas Instruments TPS54061/Q1 Synchronous Step-Down DC-DC Converter
Texas Instruments TPS54061/TPS54061-Q1 60V, 200mA Synchronous Step-Down DC-DC Converters are 60V, 200mA synchronous step-down DC-DC converters with integrated high side and low side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 90µA. Using the enable pin, shutdown supply current is reduced to 1.4µA. To increase light load efficiency the low side MOSFET emulates a diode when the inductor current reaches zero.
TI TPS54061 DC-DC converter enables small designs by integrating the MOSFETs, boot recharge diode, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced VSON package. This TI device is ideal for use in a variety of applications, including 4-20mA current-loop powered sensors as well as low power standby or bias voltage supplies. The TPS54061-Q1 devices are AEC-Q100 qualified for automotive applications. TI TPS54061EVM-142 evaluation module helps designers evaluate the performance of the TPS54061.
Features
- Integrated High Side and Low Side MOSFET
- Diode Emulation for Improved Light Load Efficiency
- Peak Current Mode Control
- 90µA Operating Quiescent Current
- 1.4µA Shutdown Supply Current
- 50kHz to 1100kHz Adjustable Switching Frequency
- Synchronizes to External Clock
- Internal Slow Start
- 0.8V ±1% Voltage Reference
- Stable with Ceramic Output Capacitors or Low Cost Aluminum Electrolytic
- Cycle-by-Cycle Current Limit, Thermal, OVP and Frequency Fold Back Protection
- -40°C to 150°C Operating Junction Temperature
Applications
- 4-20mA Current-Loop Powered Sensors
- Low Power Standby or Bias Voltage Supplies
- Industrial Process Control, Metering, and Security Systems
- High Efficiency Replacement for High Voltage Linear Regulators
發佈日期: 2012-06-20
| 更新日期: 2022-03-11