TS178R00 Series
ITO-220-4L
ITO-220-4SL
Pin assignment:
1. Input
2. Output
3. Gnd
4. Enable
Preliminary
1A Ultra Low Dropout Voltage Regulator w/Disable
Low Dropout Voltage 0.5V max.
General Description
The TS178R00 Series is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant
voltage power source with ITO-220 4 lead full mold package.
Dropout voltage of TS178R00 Series is below 0.5V in full rated current (1A). This regulator has various functions such as
a peak current protection, thermal shut down, over voltage protection and an output disable function.
Features
Ultra Low Dropout performance 0.5Vmax 1A
Over Current Protection, Thermal Shutdown
Over Voltage Protection, Short Circuit Protection
With Output Disable Function
± 2.4% Typical Total output
TO-220 Full-Mold Package (4Pin)
Ordering Information
Part No.
TS178RxxCI4
TS178RxxCI4S
Operating Temp.
(Ambient)
-20 ~ +85
o
C
Package
ITO-220-4L
ITO-220-4SL
Note: Where xx denotes voltage option,
33=3.3V, 05=5.0V, 08=8.0V, 09=9.0V, 12=12V
Block Diagram
TS178R00 Series Preliminary
1-5
2005/4 rev. A
Absolute Maximum Ratings
Parameter
Input Voltage
Disable Voltage
Output Current
Power Dissipation 1
Power Dissipation 2
Junction Temperature
Operating Temperature
Thermal Resistance, Junction-to Case(Note2)
Thermal Resistance, Junction-to Air(Note2)
Thermal Shutdown Temperature
Symbol
Vin
Vdis
Io
Pd1
Pd2
Tj
Topr
Rθjc
Rθja
Ttsd
Value
30
30
1.0
1.5
15
+150
-20~ +80
4.31
48.83
150
Unit
V
V
A
W
W
°C
°C
°C
/ W
°C
/ W
°C
Remark
--
--
--
No heat sink
With heat sink
--
--
--
--
--
Electrical Characteristics
TS178R00 Series
(Vin=Note 6, Io=1.0A, Ta=25°C , unless otherwise specified).
Parameter
TS178R33
TS178R05
Output Voltage
TS178R08
TS178R09
TS178R12
Load Regulation
Line Regulation
Ripple Rejection Ratio
Dropout Voltage
Disable Voltage High
Disable Voltage Low
Disable Bias Current High
Disable Bias Current Low
Quiescent Current
REGload
REGline
RR
Vdrop
VdisH
VdisL
IdisH
IdisL
Iq
5mA<Io<1A
Note 7
Note1
Io=1A
Output Active
Output Disabled
Vdis=2.7V
Vdis=0.4V
Io=0A
Vo
Symbol
Conditions
Min.
3.22
4.88
7.80
8.78
11.7
--
--
45
--
2.0
--
--
--
--
Typ.
3.3
5.0
8.0
9.0
12
0.1
0.5
55
--
--
--
--
--
--
Max.
3.38
5.12
8.20
9.22
12.3
2.0
2.5
--
0.5
--
0.8
20
-0.4
10
Unit
V
%
%
dB
V
V
V
uA
mA
mA
Note:
1.These parameters, although guaranteed, are not 100% tested in production.
2. Junction -to -case thermal resistance test environments.
3. Pneumatic heat sink fixture.
4. Clamping pressure 60psi through 12mm diameter cylinder.
5. Thermal grease applied between PKG and heat sink fixture
6. TS178R33: Vin=5V, TS178R05: Vin=7V, TS178R08: Vin=10V, TS178R09: Vin=11V, TS178R12: Vin=15V
7. TS178R33: Vin=4~10V, TS178R05: Vin=6~12V, TS178R08: Vin=9~25V, TS178R09: Vin=10~25V,
TS178R12: Vin=13~29V
TS178R00 Series Preliminary
2-5
2005/4 rev. A
Standard Test Circuit
Ripple Rejection Test Circuit
Standard Application Circuit
TS178R00 Series Preliminary
3-5
2005/4 rev. A
Electrical Characteristics Curve
Figure 1: Output Voltage vs. Input Voltage
Figure 2: Bias Current vs. Input Voltage
Figure 3: Dropout Voltage vs.
Junction Temperature
Figure 4: Bias Current vs.
Junction Temperature
Figure 5: Over Current Protection
Figure 6: Power Dissipation vs.
Junction Temperature
TS178R00 Series Preliminary
4-5
2005/4 rev. A
ITO-220-4L Mechanical Drawing
DIM
A
A1
A2
D
E
E1
L
L2
L2
He
C
E
b
θ
ITO-220-4L DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
4.42
4.72
0.174
0.186
2.69
2.89
0.136
0.114
1.68
1.88
0.066
0.074
10.00
10.20
0.394
0.402
6.85
7.05
0.269
0.278
8.54
8.74
0.336
0.344
13.15
13.55
0.518
0.533
16.56
16.76
0.652
0.660
3.60
3.80
0.142
0.150
28.44
28.92
1.119
1.159
0.48
0.019
2.54(TYP)
0.1(TYP)
0.635(TYP)
0.025(TYP)
4°
7°
4°
7°
ITO-220-4SL Mechanical Drawing
DIM
A
A1
A2
D
E
E1
L
L2
L2
He
C
E
b
θ
ITO-220-4SL DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
4.42
4.72
0.174
0.186
2.69
2.89
0.136
0.114
1.68
10.00
6.85
8.54
8.32
16.56
3.60
23.72
1.88
10.20
7.05
8.74
8.72
16.76
3.80
24.72
0.066
0.394
0.269
0.336
0.328
0.652
0.142
0.934
0.074
0.402
0.278
0.344
0.343
0.660
0.150
0.973
0.48
2.54(TYP)
0.635(TYP)
4°
7°
0.019
0.1(TYP)
0.025(TYP)
4°
7°
TS178R00 Series Preliminary
5-5
2005/4 rev. A
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