News
TPS6280x 1.8-V to 5.5-V, 0.6A / 1-A, 2.3-µA IQ Step Down Converter 6-Pin, 0.35-mm Pitch WCSP Package
Features
1• Input Voltage Range from 1.8 V to 5.5 V
• 2.3-µA Operating Quiescent Current
• Up to 4 MHz Switching Frequency
• Output Current 0.6 A / 1 A
• 1% Output Voltage Accuracy
• Selectable Power Save / Forced PWM Mode
• R2D converter for flexible VOUT setting
• 16 Selectable + 1 Fixed Output Voltages
– TPS62800 (4 MHz): 0.4 V to 0.775 V
– TPS62801 (4 MHz): 0.8 V to 1.55 V
– TPS62802 (4 MHz): 1.8 V to 3.3 V
– TPS62806 (1.5 MHz): 0.4 V to 0.775 V
– TPS62807 (1.5 MHz): 0.8 V to 1.55 V
– TPS62808 (1.5 MHz): 1.8 V to 3.3 V
• Smart Enable Pin
• Optimized Pinout to Support 0201 Components
• DCS-Control™ Topology
• Output Discharge
• 100% Duty Cycle Operation
• Tiny 6-pin, 0.35 mm Pitch WCSP package
• Supports < 0.6 mm Solution Height
• Supports < 5 mm2 Solution Size
2 Applications
• Wearable Electronics, IoT Applications
• 2xAA Battery Powered Applications
• Smart Phones
3 Description
The TPS6280x device family is a step down
converter with 2.3-µA typical quiescent current
featuring highest efficiency and smallest solution size.
TI's DCS-Control™ topology enables the device to
operate with tiny inductors and capacitors with a
switching frequency up to 4MHz. At light load
conditions, it seamlessly enters Power Save Mode to
reduce switching cycles and maintain high efficiency.
Connecting the VSEL/MODE pin to GND selects a
fixed output voltage. With only one external resistor
connected to VSEL/MODE pin, 16 internally set
output voltages can be selected. An integrated R2D
(resistor to digital) converter reads out the external
resistor and sets the output voltage. The same device
part number can be used for different applications
and voltage rails just by changing a single resistor.
Furthermore, the internally set output voltage
provides better accuracy compared to a traditional
external resistor divider network. Once the device has
started up, the DC/DC converter enters Forced PWM
Mode by applying a high level at the VSEL/MODE
pin. In this operating mode, the device runs at a
typical 4-MHz or 1.5-MHz switching frequency,
enabling lowest output voltage ripple and highest
efficiency. The TPS6280x device series comes in a
tiny 6-pin WCSP package with 0.35-mm pitch.