TS5204
80mA Low Noise LDO Voltage Regulator
SOT-23
Pin Definition:
1. Output
2. Input
3. Ground
SOT-89
Pin Definition:
1. Output
2. Ground
3. Input
DFN 2x2
Pin Definition:
1. Out
2. N/C
3. Ground
4. N/C
5. N/C
6. Input
General Description
The TS5204 series is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage
(typically 20mV at light loads and 300mV at 80mA), and very low power consumption (500uA at 50mA), providing
high output current even when the application requires very low dropout voltage. The TS5204 series 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 Dropout Voltage
Low Power Consumption
Internal Current Limit
Thermal Shutdown Protection
Ordering Information
Part No.
TS5204CXxx RF
TS5204CYxx RM
Package
SOT-23
SOT-89
Packing
3Kpcs / 7” Reel
1Kpcs / 7” Reel
TS5204CQxx RF
DFN 2x2
3Kpcs / 7” Reel
Note: Refer to detail ordering information table.
Application
●
●
●
●
●
●
●
Cellular Telephones
Palmtops, Notebook Computers
Battery Powered Equipment
Consumer and Personal Electronics
SMPS Post Regulator and DC to DC Modules
High-efficiency Linear Power Supplies
Portable Application
Typical Application Circuit
Absolute Maximum Rating
(Note 1)
Parameter
Input Supply Voltage
Recommend Input Supply Voltage
Power Dissipation (Note 2)
SOT-23
Thermal Resistance
SOT-89
DFN 2x2
Operating Junction Temperature Range
Storage Temperature Range
T
J
T
STG
Ө
JA
Symbol
V
IN
V
IN
P
D
Limit
-20~ +20
+2.5 ~ +16
Internal limited
220
180
80
-40 ~ +125
-65 ~ +150
Unit
V
V
o
C/W
o
o
C
C
1/9
Version: J13
TS5204
80mA Low Noise LDO Voltage Regulator
Electrical Specification
(
V
IN
=Vo+1V, Io=100uA, C
OUT
=1uF, Vce≥2V, T
J
=25
o
C, unless otherwise specified.)
Parameter
Output Voltage
Output Voltage Temp. Coefficient
Line Regulation
Load Regulation (Note 5)
Dropout Voltage (Note 6)
Conditions
V
IN
=Vo + 1V
V
IN
=Vo + 1V, Io= 80mA
(Note 4)
Vo+1V
≤
V
IN
≤
16V
0.1mA
≤
Io
≤
80mA
Io=100uA
Io=50mA
Io=80mA
Io=100uA
Min
0.97|Vo|
0.96|Vo|
--
--
--
--
--
--
--
--
--
--
--
--
--
Typ
V
OUT
50
0.1
1
20
250
300
180
850
2600
180
65
0.05
260
Max
1.03|Vo|
1.04|Vo|
--
0.5
2
--
400
600
--
1250
3100
--
--
--
--
Unit
V
ppm/ C
%
%
mV
o
Ground Pin Current (Note 7)
Output Current Limit
Power Supply Rejection Ratio
Thermal Regulation (Note 8)
Output Noise
Io=50mA
Io=80mA
V
OUT
=0V
At f=100Hz, Io=100uA,
Io=50mA, C
OUT
=2.2uF,
uA
mA
dB
%/W
nV√Hz
Note:
1. Exceeding the absolute maximum rating may damage the device.
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.
3. The device is not guaranteed to function outside its operating rating.
4: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
5: 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.
6: 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.
7: 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.
8: 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
IN
=16V for
t=10mS.
2/9
Version: J13
TS5204
80mA Low Noise LDO Voltage Regulator
Application Information
TS5204 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
Tj(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 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 TS5204CX33 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
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 3.3V and an output current of 80mA, the
maximum input voltage can be determined. From the electrical characteristics table, the maximum ground
current for 80mA output current is 2.5mA.
445mW = (V
IN
– 3.3V ) * 120mA + V
IN
* 2.5mA
445mW = V
IN
* 120mA – 3.3 * 120mA + V
IN
* 2.5mA
445mW = V
IN
* 120mA – 395mW + V
IN
* 2.5mA
840mW = V
IN
* 122.5mA
V
IN
(max) = 6.85V
Therefore, a 3.3V application at 80mA of output current can accept a maximum input voltage of 6.85V in a SOT-
23 package.
o
Input Capacitor Requirement
An input capacitor of 0.1uF 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 TS5204 series requires an output capacitor to maintain stability and improve transient response is necessary.
2.2uF minimum is recommended. Larger values improve the regulator’s transient response. The output capacitor
value may be increased without limit.
The output capacitor should have an ESR (effective series resistance) less than 5Ω and a resonant frequency
above 1MHz. Ultra low ESR capacitors can cause a low amplitude oscillation on the output and/or under damped
transient response. Most of tantalum or aluminum electrolytic capacitors are adequate; film types will work. Since
o
many aluminum electrolytic have electrolytes that freeze at about –30 C, solid tantalums are recommended for
o
operation below –25 C. At lower values of output current, less output capacitance is required for output stability.
The capacitor can be reduced to 0.47uF for current below 10mA or 0.33uF for currents below 1mA
.
No Load Stability
The TS5204 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.
Dual Supply Operation
When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage
must be diode clamped to ground.
3/9
Version: J13
TS5204
80mA Low Noise LDO Voltage Regulator
Electrical Characteristics Curve
Figure 1. Dropout Voltage vs. Output Current
Figure 2. Ground Current vs. Output Current
Figure 3. Dropout Voltage vs. Output Current
Figure 4. Short Circuit Current vs. Input Voltage
4/9
Version: J13
TS5204
80mA Low Noise LDO Voltage Regulator
Ordering information
Voltage
3.3V
5V
DFN 2x2
TS5204CQ33 RF
TS5204CQ50 RF
SOT-89
SOT-23
TS5204CX33 RF
TS5204CY50 RM
TS5204CX50 RF
Packing code information
Packing
3Kpcs / 7" Reel
1Kpcs / 7" Reel
3Kpcs / 7" Reel
5/9
Version: J13
DIY/Open Source Hardware
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