TPS62080_15 Datasheet, PDF (1/27 Pages) Texas Instruments – TPS6208x 1.2-A High-Efficiency, Step-Down Converter With DCS-Control™ and Snooze Mode

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TPS62080, TPS62080A, TPS62081, TPS62082
SLVSAE8E – SEPTEMBER 2011 – REVISED APRIL 2015
TPS6208x 1.2-A High-Efficiency, Step-Down Converter With DCS-Control™
and Snooze Mode
1 Features
•1 DCS-Control™ Architecture for Fast Transient
Regulation
• Snooze Mode for 6.5-µA Ultra Low Quiescent
Current
• 2.3-V to 6-V Input Voltage Range
• 100% Duty Cycle for Lowest Dropout
• Power Save Mode for Light-Load Efficiency
• Output Discharge Function
• Short-Circuit Protection
• Power-Good Output
• Thermal Shutdown
• Available in 2-mm × 2-mm 8-Pin WSON Package
2 Applications
• Battery-Powered Portable Devices
• Point of Load Regulators
• System Power Rail Voltage Conversion
3 Description
The TPS6208x devices are a family of high frequency
synchronous step down converters. With an input
voltage range of 2.3 V to 6 V, common battery
technologies are supported. Alternatively, the device
can be used for low voltage system power rails.
The TPS6208x focuses on high efficiency step-down
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 currents to maintain high
efficiency over the entire load current range. To
maintain high efficiency at very low load or no load
currents, a Snooze Mode with an ultra-low quiescent
current is implemented. This function, enabled by the
MODE pin, increases the run-time of battery driven
applications and keeps the standby current at its
lowest level to meet green energy standards targeting
a low stand-by current.
To address the requirements of system power rails,
the internal loop compensation allows a large
selection of external output capacitor values in
excess of 100 µF. With its DCS-Control architecture,
excellent load transient performance and output
voltage regulation accuracy is achieved. The device
is available in 2-mm × 2-mm WSON package with
Thermal PAD.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS62080
TPS62080A
TPS62081
WSON (8)
2.00 mm × 2.00 mm
TPS62082
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application of TPS62081 (1.8-V Fixed Output)
TPS62081
V_IN
2.3V .. 6V
VIN
10µF
EN
PG
1µH
SW
MODE
VOS
POWER GOOD
180k
22µF
V 1.8V
OUT
GND
FB
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.