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TPS62080_14

更新时间： 2024-01-14 22:18:57
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德州仪器 - TI /
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27页 991K
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1.2A High Efficient Step Down Converter with Snooze Mode

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TPS62080_14 数据手册

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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  
1
FEATURES  
DESCRIPTION  
The TPS6208x devices are a family of high frequency  
•
DCS-ControlTM Architecture for Fast Transient  
Regulation  
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.  
•
Snooze Mode for 6.5µA Ultra Low Quiescent  
Current  
•
•
2.3V to 6.0V Input Voltage Range  
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.  
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  
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-ControlTM architecture excellent load transient  
performance and output voltage regulation accuracy  
is achieved. The device is available in 2x2mm SON  
package with Thermal PAD.  
•
•
•
Battery Powered Portable Devices  
Point of Load Regulators  
System Power Rail Voltage Conversion  
POWER GOOD  
180k  
TPS62081  
2.3V .. 6V  
VIN  
VIN  
PG  
1µH  
1.8V  
EN  
SW  
VOS  
FB  
VOUT  
10µF  
22µF  
MODE  
GND  
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  
 
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