TPS62097 Step-Down Converters

TPS62097 Step-Down Converters

Texas Instruments' TPS62097 devices are a synchronous step-down converters optimized for high efficiency and noise critical applications. The devices focus on high efficiency conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load. The switching frequency is selectable in the range of 1.5 MHz to 2.5 MHz by an external resistor. iDCS-control is able to be operated in forced PWM mode for low noise operation with a fixed switching frequency.

To address the requirements of system power rails, the internal compensation circuit allows a large selection of external output capacitor values in excess of 150 µF. To control the inrush current during the startup, the devices provide a programmable soft startup by an external capacitor connected to the SS/TR pin. The SS/TR pin is also used in voltage tracking configurations. The devices integrate short circuit protection, power good, and thermal shutdown features. The devices are available in a 2 mm x 2 mm VQFN package.

Features  
  • iDCS-control topology
  • Forced PWM or power save mode
  • Up to 97% efficiency
  • 2.5 V to 6 V input voltage
  • 0.8 V to VIN adjustable output voltage
  • 1.8 V and 3.3 V fixed output voltage
  • ±1% output voltage accuracy
  • Hiccup short-circuit protection
  • Programmable soft startup
  • Output voltage tracking
  • Selectable switching frequency
  • 100% duty cycle for lowest dropout
  • Output discharge
  • Power good output
  • Thermal shutdown protection
  • -40°C to 125°C operating junction temperature
  • Available in 2 mm x 2 mm VQFN package
Manufacturer