TS5213
Taiwan Semiconductor
80mA Low Noise LDO Voltage Regulator
with Enable Function
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 (225μA 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
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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
APPLICATION
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Cellular Telephones
Palmtops, Notebook Computers
Battery Powered Equipment
SMPS Post Regulator and DC to DC Modules
High-efficiency Linear Power Supplies
Portable Application
SOT-25
Pin Definition:
1. Input
2. Ground
3. Enable
4. N/C
5. Output
Notes:
Moisture sensitivity level: level 3. Per J-STD-020
TYPICAL APPLICATION CIRCUIT
EN may be connected to V
IN
pin to regulation ON
C
IN
> 0.1μF in basic operating
C
OUT
>0.47μF in low noise operating
Document Number: DS_P0000201
1
Version: G15
TS5213
Taiwan Semiconductor
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25°C unless otherwise noted) (Note 1)
PARAMETER
Input Supply Voltage
Enable Input Voltage
Power Dissipation (Note 2)
Thermal Resistance
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260 C)
o
SYMBOL
V
IN
V
CE
P
D
R
θJA
T
J
T
STG
LIMIT
-20~ +20
-20~ +20
Internal limited
220
-40 ~ +125
-65 ~ +150
5
UNIT
V
V
o
C/W
o
o
C
C
S
RECOMMEND OPERATING RATING
PARAMETER
Input Supply Voltage
Enable Input Voltage
(Note 2)
SYMBOL
V
IN
V
CE
LIMIT
+2.5 ~ +16
0 ~ V
IN
UNIT
V
V
ELECTRICAL SPECIFICATIONS
(V
IN
= V
O
+1V, I
O
= 100μA, C
OUT
= 1μF, Vce≥2V, T
A
= 25°C unless otherwise noted)
PARAMETER
Output Voltage
Output Voltage Temp. Coefficient
Line Regulation
Load Regulation
(Note 6)
CONDITIONS
V
IN
=V
O
+ 1V
-40ºC
≤
T
J
≤ +125ºC
(Note 5)
V
O
+1V
≤
V
IN
≤
16V
0.1mA
≤
Io
≤
80mA
I
O
=100uA
I
O
=20mA
I
O
=50mA
I
O
=80mA
MIN
-3
-4
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
TYP
--
--
50
0.008
0.08
50
230
280
320
0.01
80
225
850
1800
250
65
0.05
MAX
3
4
200
0.3
0.3
--
300
370
420
10
--
750
--
3000
500
--
--
UNIT
%
o
ppm/ C
%
%
Dropout Voltage
(Note 7)
mV
Quiescent Current
V
EN
≤0.4V
(shutdown)
I
O
=100μA
I
O
=20mA
I
O
=50mA
I
O
=80mA
μA
Ground Pin Current
(Note 8)
V
EN
≥2V
(active)
μA
Output Current Limit
Power Supply Rejection Ratio
Thermal Regulation
(Note 9)
V
OUT
=0V
At f=100Hz, I
O
=100μA,
mA
dB
%/W
Document Number: DS_P0000201
2
Version: G15
TS5213
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS
(V
IN
= V
O
+1V, I
O
= 100μA, C
OUT
= 1μF, Vce≥2V, T
A
= 25°C unless otherwise noted)
Enable Function
PARAMETER
Enable Input Logic-Low Voltage
Enable Input Logic-High Voltage
Enable Input Current
CONDITIONS
Regulation shutdown
Regulation enable
V
IL
≤
0.6V
V
IH
≥ 2.0V
MIN
--
2.0
--
--
TYP
--
--
0.01
15
MAX
0.6
--
1
50
UNIT
V
V
μA
V
Note:
1. Exceeding the absolute maximum rating may damage the device.
2. The maximum allowable power dissipation at any T
A
is P
D(MAX)
= [T
J(MAX)
- Ta] + R
θJA
. Exceeding the maximum allowable
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
3. Devices are ESD sensitive. Handling precautions recommended.
4. The device is not guaranteed to function outside its operating rating.
5. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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.
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.
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.
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.
Document Number: DS_P0000201
3
Version: G15
TS5213
Taiwan Semiconductor
ORDERING INFORMATION
OUTPUT VOLTAGE
3.3V
5V
PART NO.
TS5213CX533 RFG
TS5213CX550 RFG
PACKAGE
SOT-25
SOT-25
PACKING
3,000pcs / 7” Reel
3,000pcs / 7” Reel
Note:
1. Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC.
2. Halogen-free according to IEC 61249-2-21 definition.
BLOCK DIAGRAMS
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 0.17μF 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.
Document Number: DS_P0000201
4
Version: G15
TS5213
Taiwan Semiconductor
APPLICATION INFORMATION (CONTINUE)
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 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
o
Substituting P
D(MAX)
for P
D
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 C – 25 C) / 220 C/W
P
D(MAX)
= 455mW
o
o
o
The junction to ambient thermal resistance for the minimum footprint is 220 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.
o
Document Number: DS_P0000201
5
Version: G15
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