TS4264
5V/150mA Fixed-Voltage Ultra Low LDO
SOT-223
Pin Definition:
1. Input
2. Ground (tab)
3. Output
General Description
TS4264 is a 5V low-drop fixed-voltage regulator in an SOT-223 package. The IC regulates an input voltage in the
range of 5.5V<V
IN
<45V to V
OUT
(rated) = 5.0V. The maximum output current is more than 150mA. This IC is designed
with short circuit-proof and features temperature protection that disables the circuit at over-temperature.
Features
●
●
●
●
●
●
●
●
●
●
Fixed Output Voltage 5V
Output Voltage Tolerance
±2%
150mA Current Capability
Ultra Low Dropout Voltage
Over Temperature Protection
Very Low Current Consumption 400uA (max.)
Short-Circuit Proof
Reverse Polarity Proof
Wide Temperature Polarity Range
Suitable for use in Automotive Electronics
Ordering Information
Part No.
TS4264CW50 RP
Package
SOT-223
Packing
2.5Kpcs / 13” Reel
Pin Definition and Function
Pin
1
2
3
Symbol
Input
Ground
Output
Function
Block to ground directly on IC with
ceramic capacitor
Ground
Block to ground with 10uF capacitor,
ESR < 10Ω
Block Diagram
1/6
Version: B07
TS4264
5V/150mA Fixed-Voltage Ultra Low LDO
Absolute Maximum Rating
Parameter
Input Voltage
Input Voltage (Operating Range)
Input Current
Output Voltage
Output Current
Ground Current
Junction Temperature
Junction Temperature (Operating Range)
Storage Temperature
Symbol
V
IN
V
IN (OPR)
I
IN
V
OUT
I
OUT
I
GND
T
J
T
J (OPR)
T
STG
Limit Values
Min.
Max.
-42
5.5
--
-0.3
--
50
--
-40
-50
45
45
--
32
--
--
150
150
150
Unit
V
V
--
V
--
mA
ºC
ºC
ºC
Notes
Internally Limited
Internally Limited
Thermal Performance
Parameter
Thermal Resistance Junction-Ambient
Thermal Resistance Junction-Pin
Note:
Measured to pin 2 (tab)
Symbol
RΘ
JA
RΘ
JP
Limit Values
Min.
Max.
--
--
80
17
Unit
o
o
Notes
C/W
C/W
Electrical Characteristics
V
IN
=13.5V, -40≤ T
J
≤+150,
unless otherwise specified.
Parameter
Output Voltage
Output Current Limit
Current Consumption
Dropout Voltage (Note)
Load Regulation
Line Regulation
Ripple Rejection
Symbol
V
OUT
I
OUT
I
Q
V
DROP
REG
LOAD
REG
LINE
PSRR
Limit Values
Min.
Typ.
Max.
4.90
120
--
--
--
--
--
--
5.0
150
--
10
0.25
50
15
54
5.10
--
400
15
0.5
90
30
--
Unit
V
mA
uA
mA
V
mV
mV
dB
Io=1mA
Io=100mA
Io=100mA
Notes
6V
≤
V
IN
≤
28V, 5mA
≤
Io
≤
100mA
5mA
≤
Io
≤
100mA, V
IN
=13.5V
6V
≤
V
IN
≤
28V, Io=5mA
f =100Hz, V
R
=0.5V
PP
Note:
Dropout voltage = V
IN
– V
OUT
(Measured where V
OUT
has dropped 100mV from the nominal value obtained at V
IN
= 13.5V)
2/6
Version: B07
TS4264
5V/150mA Fixed-Voltage Ultra Low LDO
Typical Application Circuit
Application Information
Dimensioning Information on External Components
The input capacitor C
IN
is necessary for compensating line influences. Using a resistor of approx. 1Ω in series with C
IN
,
the oscillating of input inductivity and input capacitance can be clamped. The output capacitor C
OUT
is necessary for the
stability of the regulating circuit. Stability is guaranteed at values C
OUT
≥10uF
and an ESR
≤
10Ω within the operating
temperature range.
Circuit Description
The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a voltage
that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control,
working as a function of load current, prevents any over-saturation of the power element. The IC is additionally
protected against overload, over temperature and reverse polarity
3/6
Version: B07
TS4264
5V/150mA Fixed-Voltage Ultra Low LDO
Electrical Characteristics Curve
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Output Current
Figure 3. Quiescent Current vs. Input Voltage
Figure 4. Output Current vs. Temperature
Figure 5. Load Regulation vs. Output Current
Figure 6. Line Regulation vs. Output Current
4/6
Version: B07
TS4264
5V/150mA Fixed-Voltage Ultra Low LDO
SOT-223 Mechanical Drawing
DIM
A
B
C
D
E
F
G
H
I
J
K
SOT-223 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
6.350
6.850
0.250
0.270
2.900
3.100
0.114
0.122
3.450
3.750
0.136
0.148
0.595
0.635
0.023
0.025
4.550
4.650
0.179
0.183
2.250
2.350
0.088
0.093
0.835
1.035
0.032
0.041
6.700
7.300
0.263
0.287
0.250
0.355
0.010
0.014
10°
16°
10°
16°
1.550
1.800
0.061
0.071
Marking Diagram
50
= Fixed 5V Output Voltage
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
5/6
Version: B07
51单片机
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