TPS62801YKAR

The TPS6280x device family is a buck converter featuring a typical quiescent current of 2.3µA, excellent efficiency, and an ultra-small solution size. The device utilizes TI's DCS-Control™ topology, enabling operation with miniature inductors and capacitors at switching frequencies up to 4MHz. Under light-load conditions, the device seamlessly enters power save mode, reducing the number of switching cycles and maintaining high efficiency. Connecting the VSEL/MODE pin to GND selects the fixed output voltage. Connecting a single external resistor to the VSEL/MODE pin allows selection from 16 internally set output voltages. The integrated R2D (Resistor-to-Digital) converter reads the external resistor and sets the output voltage accordingly. By simply swapping a single resistor, the same device part number can be used across different applications and voltage rails. Furthermore, the internally set output voltages provide higher accuracy compared to a conventional external resistive voltage divider network. After device startup, the DC/DC converter enters forced PWM mode (by applying a logic high to the VSEL/MODE pin). In this operating mode, the device typically switches at 4MHz or 1.5MHz, enabling minimum output voltage ripple and maximum efficiency. The TPS6280x device family is available in a miniature 6-pin WCSP package with 0.35mm pitch.

Applications

• Wearable electronics
• IoT applications
• 2 AA battery-powered applications
• Smartphones

Key features

• 1.75V to 5.5V input voltage range
• 2.3µA quiescent operating current
• Switching frequency up to 4MHz
• 0.6A or 1A output current
• 1% output voltage accuracy
• Selectable power save and forced PWM modes
• R2D converter for flexible output voltage testing
• Smart enable pin
• Optimized pin layout for 0201 components
• DCS-Control topology
• Output discharge
• 100% duty cycle operation
• Tiny 6-pin 0.35mm pitch WCSP package
• Solution height below 0.6mm
• Solution size below 5mm²