TSC TS178R12CI4

TS178R00 Series
Preliminary
1A Ultra Low Dropout Voltage Regulator w/Disable
ITO-220-4L
ITO-220-4SL
Pin assignment:
1. Input
2. Output
3. Gnd
4. Enable
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
Ordering Information
—
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)
Part No.
TS178RxxCI4
TS178RxxCI4S
Operating Temp.
Package
(Ambient)
-20 ~ +85 oC
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
Symbol
Value
Unit
Remark
Input Voltage
Vin
30
V
--
Disable Voltage
Vdis
30
V
--
Output Current
Io
1.0
A
--
Power Dissipation 1
Pd1
1.5
W
No heat sink
Power Dissipation 2
Pd2
15
W
With heat sink
Tj
+150
°C
--
Operating Temperature
Topr
-20~ +80
°C
--
Thermal Resistance, Junction-to Case(Note2)
Rθjc
4.31
°C / W
--
Thermal Resistance, Junction-to Air(Note2)
Rθja
48.83
°C / W
--
Thermal Shutdown Temperature
Ttsd
150
°C
--
Junction Temperature
Electrical Characteristics
TS178R00 Series (Vin=Note 6, Io=1.0A, Ta=25°C , unless otherwise specified).
Parameter
Output Voltage
Min.
Typ.
Max.
TS178R33
3.22
3.3
3.38
TS178R05
4.88
5.0
5.12
7.80
8.0
8.20
TS178R09
8.78
9.0
9.22
TS178R12
11.7
12
12.3
TS178R08
Symbol
Conditions
Vo
Unit
V
Load Regulation
REGload
5mA<Io<1A
--
0.1
2.0
%
Line Regulation
REGline
Note 7
--
0.5
2.5
%
RR
Note1
45
55
--
dB
Dropout Voltage
Vdrop
Io=1A
--
--
0.5
V
Disable Voltage High
VdisH
Output Active
2.0
--
--
V
Disable Voltage Low
VdisL
Output Disabled
--
--
0.8
V
Disable Bias Current High
IdisH
Vdis=2.7V
--
--
20
uA
Disable Bias Current Low
IdisL
Vdis=0.4V
--
--
-0.4
mA
Io=0A
--
--
10
mA
Ripple Rejection Ratio
Quiescent Current
Iq
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
TS178R00 Series Preliminary
4-5
Figure 6: Power Dissipation vs.
Junction Temperature
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
TS178R00 Series Preliminary
5-5
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
0.48
2.54(TYP)
0.635(TYP)
4°
7°
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
0.019
0.1(TYP)
0.025(TYP)
4°
7°
2005/4 rev. A