TS5214
300mA Low Noise LDO Voltage Regulator
SOT-23
Pin Definition:
1. Output
2. Input
3. Ground
SOT-89
SOT-223
Pin Definition:
TS5214
TS5214A
1. Output
1. Ground
2. Ground
2. Input
3. Input
3. Output
SOP-8
Pin Definition:
1. Input
8. Output
2. Ground
7. Ground
3. Ground
6. Ground
4. N/C
5. N/C
General Description
TS5214 is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage (typically 20mV at
light loads and 350mV at 300mA at 5V version), and very low power consumption (600uA at 100mA), providing high
output current even when the application requires very low dropout voltage. TS5214 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 300mA (5V Version)
Low Dropout Voltage
Low Power Consumption
Internal Current Limit
Thermal Shutdown Protection
Ordering Information
Part No.
Package
Packing
TS5214CXxx RF
SOT-23
3Kpcs / 7” Reel
TS5214CYxx RM
SOT-89
1Kpcs / 7” Reel
TS5214ACYxx RM
SOT-89
1Kpcs / 7” Reel
TS5214CWxx RP
SOT-223
2.5Kpcs / 13” Reel
TS5214CSxx RL
SOP-8
2.5Kpcs / 13” Reel
Note: Where
xx
denotes voltage option, available are
50=5.0V
33=3.3V
29=2.9V
28=2.8V
25=2.5V
Contact factory for additional voltage options.
Application
●
●
●
●
●
●
Cellular Telephones
Palmtops, Notebook Computers
Battery Powered Equipment
Consumer and Portable Application
SMPS Post Regulator and DC to DC Modules
High-efficiency Linear Power Supplies
Block Diagram
Typical Application Circuit
V
IN
V
OUT
C
IN
1uF
C
OUT
2.2uF
1/8
Version: E07
TS5214
300mA Low Noise LDO Voltage Regulator
Absolute Maximum Rating
(Note 1)
Parameter
Input Supply Voltage
Input Supply Voltage (Recommend)
Power Dissipation (Note 2)
SOT-23
SOT-89
Thermal Resistance
SOT-223
SOP-8
Operating Junction Temperature Range
Storage Temperature Range
o
Lead Soldering Temperature (260 C)
Symbol
V
IN
V
IN
P
D
Ө
JA
T
J
T
STG
Limit
-20~ +20
+2.5 ~ +16
Internal limited
220
180
130
160
-40 ~ +125
-65 ~ +150
5
Unit
V
V
o
C/W
o
o
C
C
S
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= 120mA
(Note 4)
Vo+1V
≤
V
IN
≤
16V
0.1mA
≤
Io
≤
120mA
Io=100uA
Io=50mA
Io=150mA
Io=300mA (5V version)
Io=100uA
Io=50mA
Io=150mA
Io=300mA (5V version)
V
OUT
=0V
At f=100Hz, Io=100uA,
Min
0.97|Vo|
0.96|Vo|
--
--
--
--
--
--
--
--
--
--
--
150
--
--
--
Typ
V
OUT
50
0.1
1
20
250
350
450
110
500
2600
3500
200
75
0.05
260
Max
1.03|Vo|
1.04|Vo|
--
0.5
2
--
300
400
500
150
1000
3100
4200
--
--
--
--
Unit
V
ppm/ C
%
%
mV
o
Ground Pin Current (Note 7)
uA
Output Current Limit
mA
Power Supply Rejection Ratio
dB
Thermal Regulation (Note 8)
%/W
Output Noise
Io=50mA, C
OUT
=2.2uF,
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 300mA (5V version) and 1mA to 120mA (V
OUT
<5V version). 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 300mA load pulse at Vin=16V for t=10mS.
2/8
Version: E07
TS5214
300mA Low Noise LDO Voltage Regulator
Application Information
TS5214 is designed to provide 300mA (5V version) 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) – Ta ] /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
– Vout ) * Iout + V
IN
* Ignd
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 TS5214CX33 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) = (125oC – 25oC) / 220oC/W
P
D
(max) = 455mW
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 120mA, the
maximum input voltage can be determined. From the electrical characteristics table, the maximum ground current for
120mA 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 120mA of output current can accept a maximum input voltage of 6.85V in a SOT-23
package.
o
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
TS5214 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 many
o
aluminum electrolytic have electrolytes that freeze at about –30 C, solid tantalums are recommended for operation
o
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
TS5214 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.
3/8
Version: E07
TS5214
300mA Low Noise LDO Voltage Regulator
SOT-23 Mechanical Drawing
DIM
A
A1
B
C
D
E
F
G
H
I
J
SOT-23 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
0.95 BSC
0.037 BSC
1.9 BSC
0.074 BSC
2.60
3.00
0.102
0.118
1.40
1.70
0.055
0.067
2.80
3.10
0.110
0.122
1.00
1.30
0.039
0.051
0.00
0.10
0.000
0.004
0.35
0.50
0.014
0.020
0.10
0.20
0.004
0.008
0.30
0.60
0.012
0.024
5º
10º
5º
10º
Marking Diagram
P
Y
M
= Product code
= Year Code
= 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)
= Lot Code
= Voltage Code
(K=2.5V,
N=2.8V, O=2.9V, S=3.3V, 5=5V)
L
XX
4/8
Version: E07
TS5214
300mA Low Noise LDO Voltage Regulator
SOT-89 Mechanical Drawing
DIM
A
B
C
D
E
F
G
H
I
J
SOT-89 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
4.40
4.60
0.173
0.181
1.50
1.7
0.059
0.070
2.30
2.60
0.090
0.102
0.40
0.52
0.016
0.020
1.50
1.50
0.059
0.059
3.00
3.00
0.118
0.118
0.89
1.20
0.035
0.047
4.05
4.25
0.159
0.167
1.4
1.6
0.055
0.068
0.35
0.44
0.014
0.017
Marking Diagram
Y
M
= Year Code
= 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)
= Lot Code
= Voltage Code
(25=2.5V,
28=2.8V, 29=2.9V, 33=3.3V, 50=5V)
L
XX
5/8
Version: E07
嵌入式系统
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