TS1123
Ultra Low Dropout Voltage Regulator Driver
with Enable Function
SOT-25
Pin Definition:
1. Output
2. Ground
3. Enable
4. Input
5. Drive
General Description
TS1123 is a low dropout voltage regulator driver for various electronic equipments. It provides constant voltage power
source with SOT-25 package. TS1123 with external PNP transistor can drive output current up to 4A, quiescent
current is typically at 5mA. Further more, the quiescent current is smaller when the regulator is in the dropout mode
(V
IN
<5.5V). TS1123 has various functions such as a over current protection, thermal shutdown and an output enable
function.
Features
●
●
●
●
●
Ultra Low Dropout performance 0.5Vmax.
Over Current Protection & Thermal Shutdown
Short Circuit Protection
Output Enable Function
±2.4% Typical Total output
Ordering Information
Part No.
Package
Packing
TS1123CX5xx C0
SOT-25
3Kpcs / 7” Reel
Note: Where
xx
denotes voltage option,
33=3.3V
50=5.0V
80=8.0V
90=9.0V
12=12V
15=15V
Block Diagram
Absolute Maximum Rating
Parameter
Input Voltage
Enable Voltage
Output Current
Power Dissipation
Junction Temperature
Operating Temperature Range
Storage Temperature Range
1/4
Symbol
V
IN
V
EN
I
OUT
P
D
T
J
T
OPR
T
STG
Value
35
35
200
Internal Limited
+150
-40 ~ +125
-65 ~ +150
Unit
V
V
mA
°C
°C
°C
Version: A07
TS1123
Ultra Low Dropout Voltage Regulator Driver
with Enable Function
Electrical Specifications
(I
O
=100mA, Ta=25°C, unless otherwise specified).
Parameter
V
IN
= 5V
V
IN
= 7V
Output Voltage
V
IN
= 10V
V
IN
= 11V
V
IN
= 15V
V
IN
= 21V
Load Regulation
Line Regulation
Ripple Rejection Ratio
Dropout Voltage
Enable Voltage High
Enable Voltage Low
Enable Bias Current High
Enable Bias Current Low
I
OUT
= 5mA ~ 200mA
V
IN
= V
OUT
+ 1 ~ 32V
Note1
I
OUT
= 200mA
Output Active
Output Enable
V
EN
= 2.7V
V
EN
= 0.4V
Conditions
Min.
3.22
4.88
7.80
8.78
11.71
14.64
--
--
45
--
2.0
--
--
--
Typ.
3.3
5.0
8.0
9.0
12
15
0.1
0.5
55
--
--
--
--
--
--
Max.
3.38
5.12
8.20
9.22
12.28
15.36
2.0
2.5
--
0.5
--
0.8
20
-0.4
10
Unit
V
%
%
dB
V
V
V
uA
mA
mA
Quiescent Current
I
OUT
= 0A
--
Note:
1.These parameters, although guaranteed, are not 100% tested in production.
2. Junction -to -case thermal resistance test environments.
3. Pneumatic heat sink fixture.
4. Clamping pressure 60psi through 12mm diameter cylinder.
5. Thermal grease applied between PKG and heat sink fixture
Typical Application Circuit
Note:
Select different external PNP transistor for
different output current
Recommend PNP Transistor:
* TSB1132CY for 1A application circuit
* TSB1424ACY for 2A application circuit
* TSB1184CP for 3A application circuit
* TSB1424ACP for 4A application circuit
2/4
Version: A07
TS1123
Ultra Low Dropout Voltage Regulator Driver
with Enable Function
SOT-25 Mechanical Drawing
DIM
A+A1
B
C
D
E
E
H
L
Ө1
S1
SOT-25 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
0.09
1.25
0.0354
0.0492
0.30
0.50
0.0118
0.0197
0.09
0.25
0.0035
0.0098
2.70
3.10
0.1063
0.1220
1.40
1.80
0.0551
0.0709
1.90 BSC
0.0748 BSC
2.40
3.00
0.09449
0.1181
0.35 BSC
0.0138 BSC
0º
10º
0º
10º
0.95 BSC
0.0374 BSC
Marking Diagram
Z
= Device Code
X
= Voltage Code
(S=3.3V,
5=5V, 8=8V, 9=9V, 1=12V, A=15V)
Y
= 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)
L
= Lot Code
3/4
Version: A07
TS1123
Ultra Low Dropout Voltage Regulator Driver
with Enable Function
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to any
intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for
such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale
and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability,
or infringement of any patent, copyright, or other intellectual property right.
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 do so at their own risk and agree to fully indemnify TSC for
any damages resulting from such improper use or sale.
4/4
Version: A07
