TA58LT00F
TOSHIBA Bipolar Linear Integrated Circuit
Silicon Monolithic
TA58LT00F
150 mA Output Current and Tracking Regulator with ON/OFF Control Switch
The TA58LT00F consists of small-surface mount type tracking
regulators with an output current of 150 mA (maximum) and an
ON/OFF control switch. Control by an EN (ON/OFF) terminal
enables the regulator to be operated only when required (output ON).
The output voltage can be controlled to an arbitrary voltage between
2.5V and 13.4V by applying a necessary voltage to ADJ through a
microcontroller, etc. It is also possible to enable or disable the
regulator via the enable (ON/OFF) terminal. Enabling the regulator
only when necessary contributes to the energy saving of equipment.
Features
•
•
•
•
•
•
•
Built-in ON/OFF control function (active high)
Maximum output current
Output voltage
Tracking voltage accuracy
Protection function
Package type
: 150mA
: 2.5 V
∼
13.4 V
: ± 10mV (@T
j
= 25°C)
: Over-current protection / thermal shutdown /
Reverse connection of power supply / 60 V load dump
: Surface-mount New PW-Mold5pin
HSIP5-P-1.27B
Weight : 0.36 g (Typ.)
Low standby current (output OFF mode) : 1μA (Typ.)
Pin Assignment
Mark
1
IN
2
3
4
5
EN GND ADJ OUT
Marking
3
58LT00F
Part No. (or abbreviation code)
Lot No.
A line indicates
lead (Pb) - free package or
lead (Pb) - free finish.
1 2 3 4 5
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2006-11-06
TA58LT00F
Pin Description
Pin No.
1
2
3
4
5
Symbol
IN
EN
GND
ADJ
OUT
Description
Input terminal. Connected by capacitor (C
IN
) to GND.
Output ON/OFF control terminal.
Output is ON when this pin is set to “High”, OFF when this pin is open or set to “Low”.
Ground terminal
Adjustment terminal
Output terminal. Connected by capacitor (C
OUT
) to GND.
How to Order
Product No.
TA58LT00F(T6L1,Q)
Package
New PW-Mold5pin : Surface-mount
Package Type and Capacity
Tape (2000 pcs/reel)
Block Diagram
Over-voltage
protection
IN
Over-current
protection
Start
circuit
Reference
voltage
circuit
Thermal
shutdown
OUT
EN
ADJ
GND
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TA58LT00F
Absolute Maximum Rating
(Ta
=
25°C)
Characteristic
Input voltage
EN Input voltage
ADJ Input voltage
Output current
Junction temperature
Storage temperature
Power dissipation
Ta
=
25°C
Tc= 25°C
Symbol
V
IN
V
EN
V
ADJ
I
OUT
T
j
T
stg
P
D
Rating
-38∼38
-0.3∼38
-0.3∼38
150
150
−55~150
1
10
Unit
V
V
V
mA
°C
°C
W
Note 1: Do not apply current and voltage (including reverse polarity) to any pin that is not specified.
Note 2: If it is connected EN terminal to IN terminal, be careful so that the negative voltage is not impressed on
EN terminal.
Note 3: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Thermal Characteristics
Characteristic
Thermal resistance, junction to ambient
Thermal resistance, junction to case
Symbol
R
th (j−a)
R
th (j−c)
Max
125
12.5
Unit
℃/
W
℃/
W
Recommended operating conditions
Characteristic
Input voltage
ADJ Input voltage
Operating junction temperature
Symbol
V
IN
V
ADJ
T
j(opr)
Min
6
2.5
-40
Typ.
⎯
⎯
⎯
Max
26
13.4
135
Unit
V
V
°C
Protection Function (Reference)
Characteristic
Thermal shutdown
Thermal shutdown hysteresis width
Peak circuit current
Short circuit current
Overvoltage protection
Symbol
T
SD
T
SD(hys)
I
PEAK
I
SC
V
OV
V
IN
=
14 V
V
IN
=
14 V, T
j
=
25°C
V
IN
=
14 V, T
j
=
25°C
⎯
Test Condition
Min
150
⎯
⎯
⎯
38
Typ.
175
15
210
210
⎯
Max
⎯
⎯
⎯
⎯
⎯
Unit
°C
°C
mA
mA
V
Note 4: Ensure th
Note 5: When the input vo
at the devices operate within the limits of the maximum rating when in actual use.
ltage exceeds 38 V, the overvoltage protection circuit is activated to turn off
the output voltage.
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TA58LT00F
Electrical Characteristics
(Unless otherwise specified, 2.5 V
≦V
ADJ
≦
13.4 V, V
EN
=
H, C
IN
=
0.33
μF,
C
OUT
=
10
μF,
ESR
=
1Ω, T
j
=
-40∼125°C)
Characteristic
Symbol
Test Condition
V
IN
=
14 V, I
OUT
=
50 mA
Tracking accuracy
ΔV
OUT
Reg½line
Reg½load
I
B
I
B(OFF)
V
D
V
EN(ON)
V
EN(OFF)
I
EN(ON
)
6 V
<
V
IN
<
26 V, 5 mA
<
I
OUT
<
100m A,
=
=
=
=
-40°C
<
Tj
<
125°C
= =
6 V
<
V
IN
<
26 V, I
OUT
=
50 mA
=
=
V
IN
=
14 V, 5 mA
<
I
OUT
<
100 mA
=
=
6 V
<
V
IN
<
26 V, I
OUT
=
0 A
=
=
6 V
<
V
IN
<
26 V, I
OUT
=
100 mA
=
=
6 V
<
V
IN
<
26 V, V
EN
=
0 V
=
=
I
OUT
=
50 mA
I
OUT
=
100 mA
I
OUT
=
50 mA
⎯
V
IN
=
14 V, V
EN
=
5 V, I
OUT
=
1mA
Min
-10
-20
Typ.
⎯
⎯
Max
+10
+20
25
35
0.8
15
20
0.3
0.6
⎯
0.5
120
mV
Unit
Line regulation
Load regulation
Quiescent current
Quiescent current (OFF mode)
Dropout voltage
Output control voltage (ON)
Output control voltage (OFF)
Output control current (ON)
⎯
⎯
⎯
⎯
⎯
⎯
⎯
3
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
mV
mV
mA
μA
V
V
V
μA
⎯
⎯
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TA58LT00F
Electrical Characteristics Common to All Products
•
Tj
=
25°C in the measurement conditions of each item is a regulation for where the standard condition
when a pulse test is carried out, and any drift in the electrical characteristic due to a rise in the junction
temperature of the chip may be disregarded.
Standard Application Circuit
C
IN
0.33
μF
IN
ADJ
CPU etc.
OUT
TA58LT00F
GND
EN
C
OUT
10∼22
μF
ESR
0.5∼2Ω
Load
Reg.IC.
•
Place C
IN
as close as possible to the input terminal and GND. Place C
OUT
as close as possible to
the output terminal and GND. Although capacitor C
OUT
acts to smooth the dc output voltage
during suspension of output oscillation or load change, it might cause output oscillation in a cold
environment due to increased capacitor ESR. It is therefore recommended to use a capacitor with
small temperature sensitivity. Please connect the resistance of 0.5∼ 2Ω with the series when the
ceramic capacitor is used.
The IC may oscillate due to external conditions (output current, temperature, or the type of the
capacitor used). The type of capacitor required must be determined by the actual application circuit
in which the IC is used.
The notice in case of application
•
Note that, depending on the load conditions, a steep increase in the input voltage (V
IN
) may cause
a momentary rise in output voltage (V
OUT
) even if the EN (enable) pin is Low.
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