TPS62081DSGR Datasheet, PDF (1/27 Pages) Texas Instruments – 1.2A High Efficient Step Down Converter with Snooze Mode

TPS62080, TPS62080A
TPS62081, TPS62082
www.ti.com
SLVSAE8D – SEPTEMBER 2011 – REVISED JULY 2013
1.2A High Efficient Step Down Converter with Snooze Mode
Check for Samples: TPS62080, TPS62080A, TPS62081, TPS62082
FEATURES
1
• DCS-Control^TM Architecture for Fast Transient
Regulation
• Snooze Mode for 6.5µA Ultra Low Quiescent
Current
• 2.3V to 6.0V Input Voltage Range
• Supports High Output Capacitance up to
100µF
• 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 2x2mm 8-Pin SON Package
APPLICATIONS
• Battery Powered Portable Devices
• Point of Load Regulators
• System Power Rail Voltage Conversion
DESCRIPTION
The TPS6208x devices are a family of high frequency
synchronous step down converters. With an input
voltage range of 2.3V to 6.0V, common battery
technologies are supported. Alternatively, the device
can be used for low voltage system power rails.
The TPS6208x focuses on high efficient 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, that is enabled by the Mode
pin. This function increases the run-time of battery
driven applications and keeps the standby current at
its lowest level to meet green energy standards
targeting for a low stand-by current.
To address the requirements of system power rails,
the internal compensation circuit allows a large
selection of external output capacitor values ranging
from 10µF up to 100uF effective capacitance. With its
DCS-Control^TM architecture excellent load transient
performance and output voltage regulation accuracy
is achieved. The device is available in 2x2mm SON
package with Thermal PAD.
TPS62081
V_IN
2.3V .. 6V
VIN
EN
10µF
PG
1µH
SW
MODE
VOS
GND
FB
POWER GOOD
180k
22µF
V 1.8V
OUT
Figure 1. Typical Application of TPS62081 (1.8V Fixed Output)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2013, Texas Instruments Incorporated