TS2951 Datasheet, PDF (1/8 Pages) Taiwan Semiconductor Company, Ltd – 150mA Ultra Low Dropout Voltage Regulator

TS2951/A
150mA Ultra Low Dropout Voltage Regulator
SOP-8
Pin Definition:
1. Output
8. Input
2. Sense
7. FB
3. Shutdown 6. Voltage tap
4. Ground 5. Error flag
General Description
The TS2951/A are low power voltage regulators. These devices are excellent choice for use in battery-powered
applications such as cordless telephone, radio control systems, and portable computers.
The TS2951/A is features very low quiescent current (75uA Typ.) and very low drop output voltage (Typ. 40uV at
light load and 380 mV at 100 mA). This includes a tight initial tolerance of 1% (A version), extremely good load
and line regulation 0.05% typ. and very low output temperature coefficient, making the TS2951/A useful as a
low-power voltage reference.
TS2951/A have other key additional feature. The error flag output feature is used as power-on reset for warn of a
low output voltage, due to following batteries on input. The logic-compatible shutdown input which enable the
regulator to be switched on/off. The regulator output voltage may be pin-strapped for a 5.0 & 3.3 & 3.0 of
programmed from 1.24V to 29V with external pair of resistors. Using of as design, processing and testing
techniques make TS2951/A superior over similar products.
Features
● Output voltage available in 5V & 3.3V
● Extremely low quiescent current
● Low dropout voltage
● Extremely tight load and line regulation
● Very low temperature coefficient
● Need only 1uF for stability
● Use as Regulator or Reference
● Stable with low-ESR output capacitors
● Current and thermal limiting
● Error Flag warns of output dropout
● Logic-Controlled electronic shutdown
● Additional voltage tap
● Output voltage sense
● Output programmable from 1.24 to 29V
Ordering Information
Part No.
Package
Packing
TS2951CSxx RL
SOP-8 2.5Kpcs / 13” Reel
TS2951ACSxx RL
SOP-8 2.5Kpcs / 13” Reel
Note: Where xx denotes voltage option, available are
50= 5.0V
33= 3.3V
30= 3.0V
Application
● Battery powered systems
● SMPS Post-Regulator
● Voltage Reference
● Portable consumer equipment
Absolute Maximum Rating
Parameter
Input Supply Voltage
Feedback Input Voltage
Shutdown Input Voltage
Error Comparator Output Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 5 second)
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Symbol
V_IN
Vfeedback
Vshutdown
Verror
Pd
T_J
T_STG
T_STG
RÓ¨_JA
RÓ¨_JC
Limit
- 0.3 ~ +30
- 1.5 ~ +30
- 0.3 ~ +30
- 0.3 ~ +30
Internally Limited
- 40 ~ +125
-65 ~ +150
260
180
45
Unit
V
V
V
V
W
o_C
o_C
o_C
o_C/W
o_C/W
1/10
Version: D11