TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
1/8
Version: F12
SOT
-
25
SOT
-
353
General Description
TS5213 is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage (typically 50mV
at light loads and 320mV at 80mA), and very low ground current (225uA at 20mA), providing high output current
even when the application requires very low dropout voltage. The Chip Enable (EN) includes a CMOS or TTL
compatible input allows the output to be turned off to prolong battery life. When shutdown, power consumption
drops nearly to zero. TS5213 is included a precision voltage reference, error correction circuit, a current limited
output driver, over temperature shutdown and revered battery protection.
Features
● Ultra Low Noise Output
● Output Current up to 80mA
● Low Power Consumption
● “Zero” Off-mode Consumption
● Logic Controlled Electronic Enable
● Current Limit & Thermal Shutdown Protection
Ordering Information
Part No. Package Packing
TS5213CX5xx RF
SOT-25 3Kpcs / 7” Reel
TS5213CU5xx RF
SOT-353 3Kpcs / 7” Reel
Note: Where xx denotes voltage option, available are
50=5.0V
33=3.3V
Application
● Cellular Telephones
● Palmtops, Notebook Computers
● Battery Powered Equipment
● SMPS Post Regulator and DC to DC Modules
● High-efficiency Linear Power Supplies
●
Portable Application
Typical Application Circuit
EN may be connected to V
IN
pin to regulation ON
C
IN
> 0.1uF in basic operating
C
OUT
>0.47uF in low noise operating
Block Diagram
Pin
Definition
:
1. Input
2. Ground
3. Enable
4. N/C
5. Output
Pin
Definition
:
1. Enable
2. N/C or Ground
3. Ground
4. Output
5. Input
V
OUT
V
IN
EN
on
off
C
OUT
0.47uF
TS5213CX5xx
V
OUT
V
IN
EN
on
off
C
OUT
0.47uF
TS5213CU5xx
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
2/8
Version: F12
Absolute Maximum Rating
(Note 1)
Parameter Symbol Limit Unit
Input Supply Voltage V
IN
-20~ +20 V
Enable Input Voltage V
CE
-20~ +20 V
Power Dissipation (Note 2) P
D
Internal limited
Thermal Resistance SOT-25 Ө
JA
220
o
C/W
SOT-353 450
Operating Junction Temperature Range T
J
-40 ~ +125
o
C
Storage Temperature Range T
STG
-65 ~ +150
o
C
Lead Soldering Temperature (260
o
C) 5 S
Recommend Operating Rating
(Note 2)
Parameter Symbol Limit Unit
Input Supply Voltage V
IN
+2.5 ~ +16 V
Enable Input Voltage V
CE
0 ~ V
IN
V
Electrical Specification
(
V
IN
=Vo+1V, Io=1mA, C
OU
T=0.47uF, V
EN
≥2V, T
J
= 25
o
C, unless otherwise specified.)
Parameter Conditions Min Typ Max Unit
Output Voltage V
IN
=Vo + 1V -3 -- 3 %
-40ºC ≤ T
J
≤ +125ºC -4 -- 4
Output Voltage Temp. Coefficient (Note 5) -- 50 200 ppm/
o
C
Line Regulation Vo+1V ≤ V
IN
≤ 16V -- 0.008 0.3 %
Load Regulation (Note 6) 0.1mA ≤ Io ≤ 80mA -- 0.08 0.3 %
Dropout Voltage (Note 7)
Io=100uA -- 50 --
mV
Io=20mA -- 230 300
Io=50mA -- 280 370
Io=80mA -- 320 420
Quiescent Current V
EN
≤0.4V (shutdown) -- 0.01 10 uA
Ground Pin Current (Note 8) V
EN
≥2V
(active)
Io=100uA -- 80 --
uA
Io=20mA -- 225 750
Io=50mA -- 850 --
Io=80mA -- 1800 3000
Output Current Limit V
OUT
=0V -- 250 500 mA
Power Supply Rejection Ratio At f=100Hz, Io=100uA, -- 65 -- dB
Thermal Regulation (Note 9) -- 0.05 -- %/W
Enable function
Enable Input Logic-Low Voltage Regulation shutdown -- -- 0.6 V
Enable Input Logic-High Voltage Regulation enable 2.0 -- -- V
Enable Input Current V
IL
≤ 0.6V -- 0.01 1 uA
V
IH
≥ 2.0V -- 15 50
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
3/8
Version: F12
Electrical Specification (Continue)
Note 1: Exceeding the absolute maximum rating may damage the device.
Note 2: The maximum allowable power dissipation at any Ta is Pd(max) = [T
J(MAX)
- Ta] + Ө
JA
. Exceeding the
maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into
thermal shutdown.
Note 3: Devices are ESD sensitive. Handling precautions recommended.
Note 4: The device is not guaranteed to function outs
ide its operating rating.
Note 5: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
Note 6: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are
tested
for load regulation in the load range from 1mA to 80mA. Changes in output voltage due to heating effects
are
covered by the thermal regulation specification.
Note 7: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential.
Note 8: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current
drawn
from the supply is the sum of the load current plus the ground pin current.
Note 9: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power
dissipation
is applied, excluding load or line regulation effects. Specifications are for a 80mA load pulse at V
IH
=16V for
t=10mS.
Application Information
Enable Input
TS5213 series feature an active-high (>2V) enable (EN) input that allows ON/OFF control of the regulator.
Current drain reduces to “zero” when the device is shutdown, with only micro-amperes of leakage current. The
EN is compatible with CMOS logic interfacing. EN may be directly tied to V
IH
and pulled up to the maximum
supply voltage.
Input Capacitor Requirement
An input capacitor of 0.17uF or greater is recommended when the device is more than 10” away from the bulk
AC supply capacitance or when the supply is a battery.
Output Capacitor Requirement
The TS5213 series requires an output capacitor to maintain stability and improve transient response is necessary.
The TS5213 is ultra stable, requiring only 0.47uF of output capacitance for stability. It is stable with all type of
capacitors, including the tiny, low-ESR ceramic chip capacitors. The output capacitor value may be increased
without limit.
No Load Stability
The TS5213 series will remain stable and in regulation with no load, unlike many other voltage regulators. This is
especially important in CMOS RAM keep alive applications.
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
4/8
Version: F12
Application Information (Continue)
Fixed Output Regulator Application
Low Noise Fixed Voltage Application
Thermal Characteristics
TS5213 series is designed to provide 80mA of continuous current in a very small package. Maximum power
dissipation can be calculated based on the output current and the voltage drop across the part. To determine the
maximum power dissipation of the package, use the junction-ambient thermal resistance of the device and the
following basic equation:
P
D(MAX)
= [ T
J(MAX)
– T
A
] /Θ
JA
T
J(MAX)
is the maximum junction temperature of the die(125
o
C), and Ta is the ambient operating temperature. Θ
JA
is layout dependent, the actual power dissipation of the regulator circuit can be determined using the equation:
P
D
= (V
IN
– V
OUT
) * I
OUT
+ V
IN
* I
GND
Substituting Pd(max) for Pd and solving for the operating conditions that are critical to the application will give the
maximum operating conditions for the regulator circuit. For example, when operating the TS5213CX550 at room
temperature with a minimum footprint layout, the maximum input voltage for a set output current can be
determined as follows:
P
D(MAX)
= (125
o
C – 25
o
C) / 220
o
C/W
P
D(MAX)
= 455mW
The junction to ambient thermal resistance for the minimum footprint is 220
o
C/W, the maximum power dissipation
must not be exceeded for proper operation. Using the output voltage of 5.0V and an output current of 80mA, the
maximum input voltage can be determined. Form the electrical characteristics table, the maximum ground
current for 80mA output current is 1mA.
445mW = (V
IN
– 5.0V ) * 80mA + V
IN
* 1.8mA
445mW = V
IN
* 80mA – 5.0 * 80mA + V
IN
* 1.8mA
445mW = V
IN
* 80mA – 400mW + V
IN
* 1.8mA
845mW = V
IN
* 81.8mA
V
IN
(max) = 10.33V
Therefore, a 5.0V application at 80mA of output current can accept a maximum input voltage of 10.33V in a SOT-
25 package.
TS5213 series is offered a smaller system solution, it is only
required a small multilayer ceramic capacitor for stability.
V
OUT
V
IN
C
OUT
0.47uF
EN
on
off
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
5/8
Version: F12
Electrical Characteristics Curve
Figure 1. Output Voltage
vs. Input Voltage
Figure 2. Ground Current vs. Output Current
Figure 3. Dropout Voltage vs. Output Current
Figure 4. Short Circuit Current vs. Input Voltage
Figure 5. Ripple Rejection vs. Frequency
Figure 6. Ripple Rejection vs. Frequency
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
6/8
Version: F12
SOT-25 Mechanical Drawing
Marking Diagram
T
= Device Code
X
= Voltage Code
(5 = 5.0V, S = 3.3V)
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
SOT-25 DIMENSION
DIM
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
A+A
1
0.09 1.25 0.0354 0.0492
B
0.30
0.50
0.0118
0.0197
C
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
E
1.90 BSC
0.0748 BSC
H
2.40
3.00
0.09449
0.1181
L
0.35 BSC
0.0138 BSC
Ө1
0º
10º
0º
10º
S1
0.95 BSC
0.0374 BSC
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
7/8
Version: F12
SOT-353 Mechanical Drawing
Marking Diagram
X
= Voltage Code
(5 = 5.0V, S = 3.3V)
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)
SOT-353 DIMENSION
DIM
MILLIMETERS INCHES
MIN MAX MIN MAX
A 1.80 2.20 0.0709
0.0866
B 0.25 0.40 0.0098
0.0157
C 1.30(typ) 0.0512(typ)
D 1.15 1.35 0.0453
0.0531
E 1.80 2.40 0.0709
0.0945
F 0.35 0.50 0.0137
0.0197
G 0.80 1.10 0.0315
0.0433
H 0.10 0.45 0.0039
0.0177
TS5213
80mA Low Noise LDO Voltage Regulator
with Enable Function
8/8
Version: F12
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.
