OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

TS2951CS50 RLG

P1-P3P4-P6P7-P9
TS2951
Taiwan Semiconductor
Document Number: DS_P0000207 1 Version: G15
150mA Ultra Low Dropout Voltage Regulator
DESCRIPTION
The TS2951 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 is features very low quiescent current
(75µA Typ.) and very low drop output voltage (Typ.
40µV at light load and 380mV at 100mA). 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
useful as a low-power voltage reference.
TS2951 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 superior over similar
products.
FEATURES
● Output voltage available in 5V, 3V & 3.3V
● Extremely low quiescent current
● Low dropout voltage
● Extremely tight load and line regulation
● Very low temperature coefficient
● Need only 1µF 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
APPLICATION
● Battery powered systems
● SMPS Post-Regulator and Voltage Reference
● Voltage Reference
● Portable consumer equipment
SO
P
-
8
Pin
Definition
:
1. Output
2. Sense
3. Shutdown
4. Ground
5. Error flag
6. Voltage tap
7. FB
8. Input
Notes: Moisture sensitivity level: level 3. Per J-STD-020
TYPICAL APPLICATION CIRCUIT
Adjustable Regulator
TS2951
Taiwan Semiconductor
Document Number: DS_P0000207 2 Version: G15
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL LIMIT UNIT
Input Supply Voltage V
IN
-0.3 ~ +30
V
Feedback Input Voltage
V
FB
-1.5 ~ +30 V
Shutdown Input Voltage
V
SHUTDOWN
-0.3 ~ +30 V
Error Comparator Output Voltage
V
ERROR
-0.3 ~ +30 V
Power Dissipation
P
D
Internally Limited W
Operating Junction Temperature Range T
J
-40 ~ +125
o
C
Storage Temperature Range
T
STG
-65 ~ +150
o
C
THERMAL PERFORMANCE
PARAMETER SYMBOL LIMIT UNIT
Junction to Case Thermal Resistance R
ӨJC
45 °C/W
Junction to Ambient Thermal Resistance R
ӨJA
180 °C/W
Notes: R
ӨJA
is the sum of the junction-to-case and case-to-ambient thermal resistances. The case thermal reference is defined
at the solder mounting surface of the drain pins. R
ӨJA
is guaranteed by design while R
ӨCA
is determined by the user’s board
design. R
ӨJA
shown below for single device operation on FR-4 PCB in still air.
ELECTRICAL SPECIFICATIONS
(V
IN
=V
OUT
+1V, T
A
=25
o
C, unless otherwise specified.)
PARAMETER
CONDITIONS
(Note 2)
MIN
TYP
MAX
UNIT
Output Voltage
T
J
=25
o
C |0.985|
5.0
3.3
3.0
|1.015|
V
Full Operating temp |0.980| |1.020|
100uA≤ I
L
≤100mA |0.975| |1.025|
Output Voltage Temperature
Coefficient
(Note 1)
-- 50 150
ppm/
o
C
-- 20 100
Line Regulation
(Note 3)
6V≤ V
IN
≤30V
(Note 4)
-- 0.04 0.2 %
Load Regulation
(Note 3)
100µA≤ I
L
≤100mA -- 0.1 0.3 %
Dropout Voltage
(Note 5)
I
L
=100µA
I
L
=100mA
--
50
380
80
450
mV
mV
Ground Current
I
L
=100µA
I
L
=100mA
--
75
8
120
12
µA
mA
Dropout Ground Current
V
IN
= 4.5V, I
L
= 100uA -- 110 170 µA
Current Limit V
OUT
= 0 -- 160 200 mA
Thermal Regulation
-- 0.05 0.2 %W
Output Noise, 10Hz
to 100KHz
Bypass=0.01uF
C
L
= 1µF
--
430 --
µV/ rms
C
L
= 3.3µF
--
100
--
C
L
= 200µF
--
160
--
Reference Voltage
(Note 6)
1.21 1.235 1.27 V
V
REF
≤ V
OUT
≤ (Vin-1V),
2.3≤ Vin≤ 30V,
100uA≤ I
L
≤ 100mA,
T
J
≤ T
J
(max)
1.185 1.235 1.285 V
TS2951
Taiwan Semiconductor
Document Number: DS_P0000207 3 Version: G15
ELECTRICAL SPECIFICATIONS
(V
IN
=V
OUT
+1V, T
A
=25
o
C, unless otherwise specified.)
PARAMETER
CONDITIONS
(Note 2)
MIN
TYP
MAX
UNIT
Feedback Pin Bias Current
-- 20 40 nA
Reference Voltage Temperature
Coefficient
(Note 7)
-- 20 -- ppm/
o
C
Feedback Pin Bias Current
Temperature Coefficient
-- 0.1 -- nA/
o
C
Output Leakage Current
V
OH
= 30V
-- 0.01 1 µA
Output Low Voltage
V
IN
= 4.5V, I
OL
= 400µA
-- 150 250 mV
Upper Threshold Voltage
(Note 8)
40 60 -- mV
Power Threshold Voltage
(Note 8)
-- 75 95 mV
Hysteresis
(Note 8)
-- 15 -- mV
Output Logic Voltage
Low (Regulator ON) -- 1.3 0.7
V
High (Regulator OFF)
2.0 1.3 --
Shut down Pin Current
Vs = 2.4V -- 30 50
µA
Vs = 30V
--
450 600
Regulator Output Current
shutdown
-- 3 10 µA
Note:
1. Output voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range.
2. Unless otherwise specified all limits guaranteed for T
J
= 25
o
C, V
IN
= 6V, I
L
= 100
µ
A and C
L
= 100
µ
F. Additional conditions for
the 8-pin versions are feedback tied to 5V, 3.3V & 3V tap output Sense (V
OUT
= 5V, 3.3V & 3V) and shutdown ≤ 0.8V.
3. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output
voltage due to heating effects are covered under the specification for thermal regulation.
4. Line regulation for the TS2951 is tested at 85
o
C for I
L
= 1mA. For I
L
= 100µA and T
J
= 125
o
C, line regulation is guaranteed by
design to 0.2%.
5. Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal
value measured at 1V differential at very low value of programmed output voltage, the minimum input supply voltage of 2V
(2.3V over temperature) must be taken in to account.
6. V
REF
≤ V
OUT
≤ (Vin-1V), 2.3≤ Vin≤ 30V, 100
µ
A≤ I
L
≤ 100mA, T
J
≤ T
J
(max)
.
7. Reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
8. Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal
reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the
error amplifier gain= V
OUT
/ V
REF
= (R1+R2) / R2. For example, at a programmed output voltage of 5V, the Error output is
guaranteed to go low when the output drops by 95 mV X 5V / 1.250 = 384mV. Thresholds remain constant as a percent of
V
OUT
as V
OUT
is varied with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed.
P1-P3P4-P6P7-P9

TS2951CS50 RLG

Mfr. #:
Buy TS2951CS50 RLG
Manufacturer:
Taiwan Semiconductor
Description:
LDO Voltage Regulators 0.15Amp Ultra Low Dropout 5.0v Volt Regul
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet