TS4264CW50 [TSC]
150mA Ultra Low Drop Out Voltage Regulator; 150毫安超低压降稳压器
| 型号： | TS4264CW50 |
| 厂家： | 
TAIWAN SEMICONDUCTOR COMPANY, LTD |
| 描述： | 150mA Ultra Low Drop Out Voltage Regulator |
| 文件： | 总5页 (文件大小：146K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS4264
150mA Ultra Low Drop Out Voltage Regulator
Pin assignment:
1. Input
High Input Voltage up to 45V
2. Ground
Low Dropout Voltage 0.5V max.
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 < Vin < 45V to Vout(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
Ordering Information
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Fixed output voltage 5V
Part No.
Operating Temp.
-40 ~ 150 oC
Package
Output voltage tolerance +/-2 %
150mA current capability
Ultra low drop out voltage
Very low current consumption
Over temperature protection
Short-circuit proof
TS4264CW50
SOT-223
Pin Definition and Function
Pin Symbol
Function
Block to ground directly on IC with
ceramic capacitor
1
Input
Reverse polarity proof
Ground
2
3
Ground
Output
Wide temperature range
Block to ground with 10uF capacitor,
Suitable for use in automotive electronics
ESR < 10Ω ꢀ
Block Diagram
TS4264
1-1
2004/01 rev. A
Absolute Maximum Rating
Parameter
Input Supply Voltage
Symbol
Vin
Values
-42 ~ 45
Unit
V
Operating Input Voltage
Output Voltage
Vin(opr)
Vout
PD
5.5 ~ 45
V
-1 ~ 16
V
Power Dissipation
Internally Limited
50
W
Ground Current
IGND
mA
oC
oC
Operating Junction Temperature Range
Storage Temperature Range
TJ
-40 ~ +150
-50 ~ +150
TSTG
Thermal Performance
Parameter
Junction to Ambient
Symbol
RΘja
Values
80
Unit
oC/W
Junction to Case
RΘjc
18
Electrical Characteristics
Vin = 13.5V, -40 ≤ Tj ≤ +150, unless otherwise specified.
Parameter
Conditions
Min
4.9
150
--
Typ
5.0
--
Max
5.1
--
Unit
Output Voltage
6V ≤ Vin ≤ 28V, 5mA ≤ Io ≤ 100mA
V
Output Current Limited
Line Regulation
mA
mV
mV
V
6V ≤ Vin ≤ 28V, Io=5mA
5mA ≤ Io ≤ 100mA, Vin= 6V
Io=100mA
15
--
30
90
0.5
400
15
--
Load Regulation
--
Dropout Voltage (note 1)
Current Consumption
(Iq= Iin – Iout)
--
0.25
--
Io= 1mA
--
uA
mA
%
Io= 100mA
--
10
0.5
54
Temperature Stability
Io=10mA
--
Power Supply Ripple Rejection
Note 1: Drop voltage = Vin – Vout
f = 100Hz, Vr= 0.5Vp-p
--
--
dB
(measured where Vout has dropped 100mV from the nominal value obtained at Vin= 13.5V)
TS4264
2-2
2004/01 rev. A
Typical Application Circuit
Application Information
Dimensioning Information on External Components
The input capacitor Cin is necessary for compensating line influences. Using a resistor of approx. 1ꢀ in series with
Cin, the oscillating of input inductivity and input capacitance can be clamped. The output capacitor Cout is necessary
for the stability of the regulating circuit. Stability is guaranteed at values Cout ≥10uF and an ESR ≤ 10ꢀ 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
TS4264
3-3
2004/01 rev. A
Electrical Characteristics Curve
Figure 1: dropout voltage vs output current
Figure 2: output current vs input voltage
Figure 3: consumption vs output current
Figure 4: consumption vs output current
Figure 5: consumption vs input voltage
Figure 6: output voltage vs temp.
TS4264
4-4
2004/01 rev. A
SOT-223 Mechanical Drawing
A
SOT-223 DIMENSION
MILLIMETERS INCHES
MIN
B
DIM
I
MIN
6.350
2.900
3.450
0.595
4.550
2.250
0.835
6.700
0.250
10°
MAX
6.850
3.100
3.750
0.635
4.650
2.350
1.035
7.300
0.355
16°
MAX
0.270
0.122
0.148
0.025
0.183
0.093
0.041
0.287
0.014
16°
A
B
C
D
E
F
G
H
I
0.250
0.114
0.136
0.023
0.179
0.088
0.032
0.263
0.010
10°
C
H
J
K
D
F
G
J
E
K
1.550
1.800
0.061
0.071
TS4264
5-5
2004/01 rev. A
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