Features: 150-mA LDO
Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output
and Adjustable Versions
Low Input Voltage Requirement
(Down to 1.8 V)
Small Output Capacitor, 0.1-F
Dropout Voltage Typically 200 mV at 150 mA
Less Than 1 A Quiescent Current in
Shutdown Mode
Thermal Protection
Over Current Limitation
5-Pin SOT-23 (DBV) Package ApplicationPortable Communication Devices
Battery Powered Equipment
PCMCIA Cards
Personal Digital Assistants
Modems
Bar Code Scanners
Backup Power Supplies
SMPS Post Regulation
Internet AudioSpecifications
| |
TPS72101, TPS72115
TPS72116, TPS72118 |
Input voltage range(2) |
0.3 V to 7 V |
| Voltage range at EN |
0.3 V to 7 V |
| Voltage on OUT, FB, NC |
0.3 V to VI + 0.3 V
|
| Peak output current |
Internally limited |
| ESD rating, HBM |
3 kV |
| Continuous total power dissipation |
See Dissipation Rating Table |
| Operating virtual junction temperature range, TJ |
40 to 150
|
| Storage temperature range, Tstg |
65 to 150
|
DescriptionThe TPS72101 LDO regulators is available in fixed voltage options that are commonly used to power the latest DSP's and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators TPS72101 can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropoutvoltage (150 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current of TPS72101 (ground pin current) is low, starting at 85 A during normal operation and 1 A in shutdown mode. These regulators TPS72101 can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device.
Similar LDO regulators TPS72101 require 1-F or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-F. Ceramic capacitors of this size are relatively inexpensive and available in small footprints.
This TPS72101 regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf, AAA, batteries makes system design easier and also reduces component cost. Moreover, the solution of TPS72101 will be more efficient than if a regulator with a higher input voltage is used.
TPS72101 Data Sheet
