TA8003SA
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8003SA
5 V Low Dropout Voltage Regulator with ON/OFF Switch
The TA8003SA is a 5 V power IC with an ON/OFF output
control pin. The TA8003SA is also designed to provide a
maximum output current of 400 mA.
In addition to low dropout voltage and standby current, this
device has the following protective functions:
TA8003SA (STL)
Features
•
•
•
•
Low standby current: 800 µA (typ.)
Maximum output current: 400 mA (max)
Low dropout voltage: 0.6 V (max)
Multi-protection:
Power supply reverse connection/
Overvoltage protection/Overheat protection/
Short-circuit protection/60 V load dump
•
•
•
Adjustable output voltage
Controllable output ON/OFF
TO-220N (IS) 5-pin isolation package
TA8003SA (LBS)
TA8003SA (LBF)
Block Diagram
Input 4
Short-circuit
protection
Output 5
Overvoltage protection/
Overheat protection
ADJ 1
100 kΩ 28.5 kΩ
6.2 kΩ
2 DIS
10 kΩ
GND 3
Weight
SSIP5-P-1.70C : 2.1 g (typ.)
ZIP5-P-1.70L : 2.1 g (typ.)
ZIP5-P-1.70K : 2.1 g (typ.)
Pin Description
Pin No.
Symbol
Description
Output voltage adjusting pin. Connect a resistor between ADJ and OUT to increase the output
voltage.
1
ADJ
V OUT
=
V ref {1
+
R2 (R1
+
Radj)
R1
⋅
Radj
}
R
1
=
28.5 kΩ, R
2
=
100 kΩ, V
ref
=
1.1 V, R
adj
: Adjustment resistance
2
3
4
5
DIS
GND
IN
OUT
Output ON/OFF control pin. Output is ON when the pin is open or at the “L” level, and OFF when
the pin is at the “H” level.
Ground pin
Power supply pin
The 5 V output pin with maximum output current 400 mA
1
2002-02-12
TA8003SA
Maximum Ratings
(Ta
=
25°C)
Characteristics
Input voltage
Operating input voltage
Power dissipation
Operating temperature
Storage temperature
Thermal resistance
Lead temperature • time
(Ta
=
25°C)
(Tc
=
25°C)
Symbol
V
IN
V
IN
P
D
T
opr
T
stg
R
th (j-c)
R
th (j-a)
T
sol
Rating
−26~60
29
2
W
20
−40~85
−55~150
6.25
°C/W
62.5
260 (10 s)
°C
°C
°C
Unit
V
V
Electrical Characteristics
(unless otherwise specified, V
IN
=
14 V, I
OUT
=
10 mA, T
j
=
25°C)
Characteristics
Symbol
Test
Circuit
1
Test Condition
5.35 V
<
V
IN
<
26 V, Ta
=
25°C
=
=
5.35 V
<
V
IN
<
26 V,
=
=
−40°C <
Ta
<
85°C
=
=
10 V
<
V
IN
<
17 V
=
=
7 V
<
V
IN
<
26 V
=
=
10 mA
<
I
OUT
<
200 mA
=
=
6 V
<
V
IN
<
26 V,
=
=
I
OUT
<
10 mA
=
V
IN
=
14 V, I
OUT
=
200 mA
Dropout voltage
Maximum operating input voltage
Output control voltage (ON)
Output control current (ON)
Output control voltage (OFF)
Output control current (OFF)
Adjustable range of output
Short-circuit current limit
(Note)
V
DROP
V
IN
V
DIS (ON)
I
DIS (ON)
V
DIS (OFF)
I
DIS (OFF)
V
OUT
I
SC
1
1
2
2
2
2
1
V
IN
=
14 V
V
DIS
=
5 V
V
DIS
=
0.5 V
I
OUT
=
50 mA
I
OUT
=
200 mA
Min
4.8
4.5
29
3
4.5
Typ.
5.0
1
2
30
1.0
17
0.1
0.3
33
0.3
560
Max
5.2
V
5.5
10
mV
30
60
2.0
mA
30
0.3
V
0.6
1
10
0.7
7.0
V
V
µA
V
mA
V
mA
mV
Unit
Output voltage
V
OUT
Line regulation
Load regulation
Reg-Line
Reg-Load
1
1
Quiescent current
I
B
1
Note: Output is turned ON when DIS pin is opened.
2
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TA8003SA
Test Circuit
1. V
OUT
, Reg-Line, Reg-Load, I
B
, V
DROP
, V
IN
, I
SC
1
4
C
IN
V
IN
A
I
B
R
L
2
5
C
OUT
A
I
OUT
V V
OUT
TA8003SA
3
2. V
DIS (ON)
, I
DIS (ON)
, V
DIS (OFF)
, I
DIS (OFF)
1
4
C
IN
V
IN
2
5
C
OUT
A
I
OUT
V V
OUT
R
L
V
DIS
A
I
DIS
TA8003SA
3
Application Circuit
1
V
IN
C
IN
0.1
µF
4
2
5
C
OUT
V
OUT
TA8003SA
3
*:
The equivalent series resistance (ESR) of C
OUT
must be less than 1
Ω
in operating temperature range.
Note on use:
1. Connect the input and output capacitors close to the pins of the regulator. If the output voltage oscillates,
increase the C
OUT
capacity and decrease the ESR. Make sure that the output voltage does not oscillate over
the full range of the operating temperature.
2. When the output voltage exceeds the variable range, malfunction may arise.
3
2002-02-12
TA8003SA
V
OUT
– T
j
5.4
VIN
=
14 V
IOUT
=
10 mA
8
V
OUT
– V
IN
Tj
=
25°C
IOUT
=
10 mA
(V)
5.2
(V)
6
V
OUT
Output voltage
4.8
Output voltage
5.0
V
OUT
4
2
4.6
−40
0
40
80
120
0
0
10
20
30
40
Junction temperature T
j
(°C)
Input voltage V
IN
(V)
V
DROP
– I
OUT
0.8
40
I
B
– V
IN
Tj
=
25°C
(V)
IOUT
=
0 A
0.6
(mA)
Tj
=
85°C
−40
30
Dropout voltage V
DROP
0.4
Quiescent current
25
I
B
20
0.2
10
0
0
100
200
300
400
0
0
10
20
30
40
Output current
I
OUT
(mA)
Input voltage V
IN
(V)
I
B
– I
OUT
100
VIN
=
14 V
10
V
OUT
– I
OUT
Tj
=
25°C
8
(mA)
75
V
OUT
Tj
=
85°C
25
25
−40
I
B
(V)
6
Quiescent current
Output voltage
50
4
VIN
=
6 V
2
14
26
0
0
100
200
300
400
0
0
200
400
600
800
1000
Output current
I
OUT
(mA)
Output current
I
OUT
(mA)
4
2002-02-12
TA8003SA
P
D
MAX – Ta
24
°C/W
20
Rth (j-c)
6.25
16
Tc
=
Ta
12
Rth (j-a)
62.5
6.6
7.0
V
OUT
– Radj
VIN
=
14 V
IOUT
=
0 A
Tj
=
25°C
Allowable power dissipation
P
D
MAX (W)
V
OUT
Output voltage
125
150
(V)
6.2
5.8
5.4
5.0
4.6
0
8
4
No heat sink
0
0
25
50
75
100
100
200
300
400
500
600
Ambient temperature Ta (°C)
Adjustable resistance (1-5 pin) Radj
(kΩ)
5
2002-02-12
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