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TS1581 series
2-2
2003/12 rev. B
Absolute Maximum Rating
Input Supply Voltage
V power
V control
Vpower
Vcontrol
7
13
V
Power Dissipation
P
D
Internally Limited
W
Operating Junction Temperature Range
T
J
0 ~ +125
o
C
Storage Temperature Range
T
STG
-65 ~ +150
o
C
Lead Soldering Temperature (260
o
C)
TO-220-5L / TO-263-5L Package
Electrical Characteristics
10
S
Tj=+25°C, Ccontrol=Cpower=Cout=10uF unless Specified
Parameter
Conditions
Min
Typ
Max
Unit
V
CONTROL
= 4.5V, V
POWER
= 2.05V, I
O
= 10mA
1.238
1.262
Reference Voltage
(Adj. Voltage Versions)
V
CONTROL
= 4.5V, V
POWER
= 2.05V,
I
O
= 10mA to 5A
1.230
1.250
1.270
V
V
CONTROL
= 5V, V
POWER
=V
OUT
+0.8V,I
O
=10mA
-1.0
+1.0
Output Voltage
(Fixed Voltage Versions)
V
CONTROL
= 5V, V
POWER
= V
OUT
+0.8V,
I
O
= 10mA to 5A
-1.6
V
OUT
+1.6
%
Line Regulation
V
CONTROL
= (Vout+1.5V) to 12V,
V
POWER
= (V
OUT
+0.8V) to 5.5V, I
O
= 10mA
0.04
0.2
%
Load Regulation
V
CONTROL
= (Vout+2.5V),
V
POWER
= (V
OUT
+0.8V), I
O
= 10mA to 5A
0.08
0.4
%
Mini. Load Current (Note 2)
V
CONTROL
=5V, V
POWER
= 3.3V, V
ADJ
=0V
5
10
mA
Control Pin Current (Note 3)
V
CONTROL
= (V
OUT
+2.5V),
V
POWER
= (V
OUT
+0.8V), I
O
= 10mA to 5A
80
135
mA
Adjust Pin Current
V
CONTROL
= 2.75V, V
POWER
= 2.05, V
ADJ
= 0V,
I
O
= 10mA
50
120
uA
Current Limit
V
POWER
- V
OUT
= 3V
5.5
6.8
A
Ripple Rejection
V
CONTROL
= V
POWER
= 5V, V
RIPPLE
= 1V,
I
O
= 2.5A, f = 120kHz
60
80
dB
Thermal Regulation
30mS pulse
0.003
%/W
Dropout Voltage (Note 4)
V
CONTROL
= (Vout+2.5V), I
O
= 5A
0.55
0.70
V
Note1: V
OUT
= V
SENSE,
V
ADJ
= 0V unless otherwise specified.
Note2: For the adjustable device the minimum load current is the minimum current required to maintain regulation,
normally the current in the resistor divider used to set the output voltage is selected to meet the minimum load
current requirement.
Note3: The control pin current is the drive current required for the output transistor, this current will track output current
with a ratio of about 1:100
Note4: If the same voltage is input to both V
POWER
and V
CONTROL
, then the dropout voltage will become 1.3V maximum,
and minimum input/output voltage required to maintain 1% regulation.