TS2950 Taiwan Semiconductor (TSC), TS2950 Datasheet

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TS2950

Manufacturer Part Number
TS2950
Description
150ma Ultra Low Dropout Voltage Regulator
Manufacturer
Taiwan Semiconductor (TSC)
Datasheet

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TS2950ACT-3.3
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General Description
The TS2950/A & 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 TS2950/A & 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 TS2950/A & TS2951/A
useful as a low-power voltage reference.
TS2950/A & TS2951/A have other key additional feature of unregulated input voltage transient of -20V below ground
(reverse battery). 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 & 3V of programmed from 1.24V to 29V with external
pair of resistors. Using of as design, processing and testing techniques make TS2950/A & TS2951/A superior over
similar products.
Features
TS2951 VERSIONS ONLY
Output voltage available in 5V, 3.3V & 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
Direct replacement for LP2950 & LP2951 sockets
Error Flag warns of output dropout
Logic-Controlled electronic shutdown
Additional voltage tap
Output voltage sense
Output programmable from 1.24 to 29V
SOP-8
Pin Definition:
1. Output
2. Sense
3. Shutdown
4. Ground
8. Input
7. Feedback
6. Voltage tap
5. Error flag
150mA Ultra Low Dropout Voltage Regulator
TO-92
1/10
Ordering Information
Note: Where xx denotes voltage option, available are
Application
TS2950CTxx B0
TS2950CTxx A3
TS2950ACTxx B0
TS2950ACTxx A3
TS2951CSxx RL
TS2951ACSxx RL
TS2950CPxx RO
TS2950ACPxx RO
Pin Definition:
1. Output
2. Ground
3. Input
Battery powered systems
Portable instrumentation
Automotive Electronics
SMPS Post-Regulator
Voltage Reference
Portable/Palm top / Notebook computers
Portable consumer equipment
Radio control system
Part No.
30= 3.0V, 33= 3.3V, 50= 5.0V
TS2950/TS2951
Package
TO-252
TO-252
TO-252
SOP-8
SOP-8
TO-92
TO-92
TO-92
TO-92
Pin Definition:
1. Input
2. Ground
3. Output
2.5Kpcs / 13” Reel
2.5Kpcs / 13” Reel
2.5Kpcs / 13” Reel
2.5Kpcs / 13” Reel
2Kpcs / Ammo
2Kpcs / Ammo
1Kpcs / Bulk
1Kpcs / Bulk
Packing
Version: A07

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TS2950 Summary of contents

Page 1

... The TS2950/A & 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 version), extremely good load and line regulation 0.05% typ. and very low output temperature coefficient, making the TS2950/A & ...

Page 2

... 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) TS2950/A & TS2951/A Electrical Characteristics +1V, Ta=25 C, unless otherwise specified.) IN OUT Parameter Output Voltage ...

Page 3

... TS2950/A & TS2951/A Electrical Characteristics (continued +1V, Ta=25 C, unless otherwise specified.) IN OUT Parameter Reference Voltage Feedback Pin Bias Current Reference Voltage Temperature Coefficient Feedback Pin Bias Current Temperature Coefficient Error Comparator Output Leakage Current Output Low Voltage Upper Threshold Voltage Power Threshold Voltage ...

Page 4

... TS2951/A output voltage is set with minimum load of 1uA and external resistors the input of TS2950/A & TS2951/A connected to battery or between AC filter capacitor and input is 10 inches wire then 1uF tantalum or aluminum electrolytic capacitor should be connected between input and ground. Instability can occur if stray capacitor to feedback terminal pin 7 of the TS2951/A ...

Page 5

... The TS2951/A typically draw 60uA at no load with pin 2 open-circuit, and this value does not look much. 150mA Ultra Low Dropout Voltage Regulator Figure 1. Error Output Timing Figure 2. Adjust Voltage 5/10 TS2950/TS2951 produces error of typically 2% in Vout FB Version: A07 ...

Page 6

... Block Diagram and Typical Applications Circuit 150mA Ultra Low Dropout Voltage Regulator 6/10 TS2950/TS2951 Version: A07 ...

Page 7

... Voltage Code (50 = 5.0V 3.3V 3V Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec Lot Code 7/10 TS2950/TS2951 SOP-8 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 4.80 5.00 0.189 0.196 3.80 4.00 0.150 0.157 1.35 1.75 0.054 ...

Page 8

... Ultra Low Dropout Voltage Regulator TO-252 Mechanical Drawing XX = Voltage Code (50 = 5.0V 3.3V 3V Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec Lot Code 8/10 TS2950/TS2951 TO-252 DIMENSION MILLIMETERS INCHES DIM MIN MAX MIN A 2.3BSC 0.09BSC A1 4 ...

Page 9

... Marking Diagram 150mA Ultra Low Dropout Voltage Regulator TO-92 Mechanical Drawing DIM XX = Voltage Code (50 = 5.0V 3.3V 3V Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec Lot Code 9/10 TS2950/TS2951 TO-92 DIMENSION MILLIMETERS INCHES MIN MAX MIN A 4.30 4.70 0.169 B 4.30 4.70 ...

Page 10

... The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 150mA Ultra Low Dropout Voltage Regulator Notice 10/10 TS2950/TS2951 Version: A07 ...

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