TS39150/1/2/3
1.5A Ultra Low Dropout Voltage Regulator
with Multi-Function
TO-220
TO-263
2
(D PAK)
Pin Definition:
TS39150
1. Input
2. Ground (tab)
3. Output
TO-220-5L
TO-263-5L
2
(D PAK)
Pin Definition:
TS39151xx
TS39152
1. Enable
1. Enable
2. Input
2. Input
3. Ground
3. Ground
4. Output
4. Output
5. Flag
5. Adjust
TS39153
1. Enable
2. Input
3. Ground
4. Output
5. Sense
General Description
TS39150/1/2/3 are 1.5A ultra low dropout linear voltage regulators that provide low voltage, high current output from
an extremely small package. These regulator offers extremely low dropout (typically 400mV at 1.5A) and very low
ground current (typically 12mA at 1.5A).
TS39150/1/2/3 are fully protected against over current faults, reversed input polarity, reversed lead insertion, over
temperature operation, positive and negative transient voltage spikes, logic level enable control and error flag which
signals whenever the output falls out of regulation.
On the TS39150/1/2/3, the enable pin may be tied to V
IN
if it is not required for enable control.
Features
●
●
●
●
●
●
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●
Dropout voltage typically 0.4V @ Io=1.5A
Output Current up to 1.5A
Low Ground Current
Extremely Fast Transient Response
Reversed Leakage & Reverse Battery Protection
Error Flag Signals Output (TS39101 only)
Internal Current Limit
Thermal Shutdown Protection
TM
Ordering Information
Part No.
Package
Packing
TS39150CZxx C0
TO-220
50pcs / Tube
TS39150CMxx RN
TO-263
800pcs / 13” Reel
TS39151CZ5xx C0
TO-220-5L
50pcs / Tube
TS39151CM5xx RN TO-263-5L
800pcs / 13” Reel
TS39152CZ5 C0
TO-220-5L
50pcs / Tube
TS39152CM5 RN
TO-263-5L
800pcs / 13” Reel
TS39153CZ5xx C0
TO-220-5L
50pcs / Tube
TS39153CM5xx RN TO-263-5L
800pcs / 13” Reel
Note: Where
xx
denotes voltage option, available are
15=1.5V
18=1.8V
25=2.5V
33=3.3V
50=5.0V
Contact to factory for addition output voltage option.
Application
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PowerPC Power Supplies
Battery Powered Equipment
Consumer and Personal Electronics
High Efficiency Linear Power Supplies
SMPS Post Regulator and DC to DC Modules
High-efficiency Post Regulator for Switching Supply
Low-Voltage microcontrollers and Digital Logic
Pin Description
Pin Configuration
Enable
Input
Ground
Output
Flag
(fixed voltage)
Feed Back
(adjustable)
Pin Description
TTL/COMS compatible input. Logic high is enable; logic low or open is shutdown
Unregulated input: +16V maximum supply
Ground: Ground pin and TAB / heat sink are internally connected.
Regulator output
Error Flag (output): Open-collector output. Active low indicates an output fault condition,
if no used, leave open.
Adjustment input: Feedback input. Connect to resistive voltage-divider network.
1/12
Version: A07
TS39150/1/2/3
1.5A Ultra Low Dropout Voltage Regulator
with Multi-Function
Absolute Maximum Rating
(Note 1)
Supply Voltage
Enable Voltage
Storage Temperature Range
Lead Soldering Temperature (260 C)
ESD
o
V
IN
V
EN
T
STG
-20V ~ +20
+20
-65 ~ +150
5
(Note 3)
V
o
V
C
S
Operating Rating
(Note 2)
Operation Input Voltage
Operation Enable Voltage
Power Dissipation (Note 4)
Operating Junction Temperature Range
V
IN
(operate)
V
EN
(operate)
P
D
T
J
+2.25 ~ +16
+2.25 ~ +16
Internally Limited
-40 ~ +125
o
V
V
W
o
C
Electrical Characteristics
V
IN
= V
OUT
+ 1V, V
IN
=2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25 C, unless otherwise specified.
Parameter
Fixed Output Voltage
Fixed Reference Output Voltage
Fixed Reference Output Voltage
Line Regulation
Load Regulation
Output Voltage Temp. Coefficient
Dropout Voltage (Note 5)
Conditions
10mA
≤
I
L
≤
1.5A,
Vo+1V
≤
V
IN
≤
8V
I
L
=10mA
10mA
≤
I
L
≤
1.5A,
2.5V
≤
V
IN
≤
8V
I
L
=10mA, Vo+1V
≤
V
IN
≤
8V
V
IN
=Vout+1V, 10mA≤I
L
≤1.5A
I
L
=100mA
I
L
=750mA
I
L
=1.5A
I
L
=100mA
I
L
=750mA
I
L
=1.5A
Min
0.980|Vo|
0.980|Vo|
0.970|Vo|
--
--
--
--
--
--
--
--
--
--
0.980|Vo|
0.970|Vo|
--
--
--
Typ
V
OUT
1.24
(V
REF
)
0.05
0.2
40
100
275
400
5
7
25
2.0
Max
1.020|Vo|
1.020|Vo|
1.030|Vo|
0.5
1.0
100
250
350
630
18
20
--
2.5
1.020|Vo|
1.030|Vo|
120
--
--
0.8
--
75
4
Unit
V
V
%
%
ppm/ C
mV
o
Δ
V
OUT
= -1%
Quiescent Current (Note 6)
Current Limited
V
IN
= V
OUT
+1V
mA
A
V
OUT
=0, V
IN
=V
OUT
+1V
Reference (TS39152)
Reference Voltage
Reference Voltage
Adjust Pin Bias Current
Reference Voltage Temp. Coefficient
Adjust Pin Bias Current Temp. Coefficient
(Note 7)
(Note 8)
1.24
40
20
0.1
--
--
--
--
V
nA
o
ppm/ C
nA/ C
o
Enable Input (TS39151/2/3)
Input Logic Voltage
Enable Pin Input Current
Low (OFF)
High (ON)
V
EN
=2.25V
V
EN
=0.8V
--
2.25
--
--
V
uA
2/12
Version: A07
TS39150/1/2/3
1.5A Ultra Low Dropout Voltage Regulator
with Multi-Function
Electrical Characteristics (Continue)
Flag Output (TS39151/3)
Output Leakage Current
Output Low Voltage (Note 9)
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis
V
OH
=16V
V
IN
=0.9 * V
OUT
, I
OL
=250uA
% of V
OUT
% of V
OUT
--
--
--
93
--
--
--
--
--
1
2
400
99
--
--
uA
mV
%
%
%
Thermal Performance
Condition
Thermal Resistance
Junction to Case
Package type
TO-220 / TO-220-5L
TO-263 / TO-263-5L
Typ
80
80
Unit
o
C/W
Note 1: Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed
specifications and test conditions see the Electrical Characteristics.
Note 2: The device is not guaranteed to operate outside its operating rating.
Note 3: Devices are ESD sensitive. Handling precautions recommended.
Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature, T
J
, the junction
to ambient thermal resistance,
Ө
JA
, and the ambient temperature, Ta. Exceeding the maximum allowable
power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The
effective value of
Ө
JA
can be reduced by using a heat sink, Pd
(max)
= (T
J(max)
– Ta) /
Ө
JA
.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops -1% below its
nominal value measured at 1V differential.
Note 6: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the
ground pin current and output load current, I
GND
= I
IN
- I
OUT
for fix output voltage, , I
GND
= I
IN
- I
OUT
+10mA for fix
reference output voltage in full load regulation.
Note 7: V
REF
≤
V
OUT
≤
(V
IN
– 1V), 2.25V
≤
V
IN
≤
16V, 10mA
≤
I
L
≤
1.0A.
Note 8: Output voltage temperature coefficient is
ΔV
OUT
(worse cast) / (T
J(max)
– T
J(MIN)
) where is T
J(max)
+125 C and
o
T
J(MIN)
is 0 C.
Note 9: For adjustable device and fixed device with V
OUT
> 2.25V.
o
3/12
Version: A07
TS39150/1/2/3
1.5A Ultra Low Dropout Voltage Regulator
with Multi-Function
Functional Diagram
TS39150 Fixed Regulator Block Diagram
TS39151/3 Fixed Regulator with Flag, Sense and Enable Block Diagram
TS39152 Adjustable Regulator Block Diagram
4/12
Version: A07
TS39150/1/2/3
1.5A Ultra Low Dropout Voltage Regulator
with Multi-Function
Application Information
The TS3915x series are high performance with low dropout voltage regulator suitable for moderate to high current and
voltage regulator application. Its 630mV dropout voltage at full load and over temperature makes it especially valuable
in battery power systems and as high efficiency noise filters in post regulator applications. Unlike normal NPN
transistor design, where the base to emitter voltage drop and collector to emitter saturation voltage limit the minimum
dropout voltage, dropout performance of the PNP output of these devices is limited only by low V
CE
saturation voltage.
The TS3915x series is fully protected from damage due to fault conditions. Linear current limiting is provided. Output
current during overload conditions is constant. Thermal shutdown the device when the die temperature exceeds the
maximum safe operating temperature. Transient protection allows device survival even when the input voltage spikes
above and below nominal. The output structure of these regulators allows voltages in excess of the desired output
voltage to be applied without reverse current flow.
Output Capacitor Requirement
The TS3915x series requires an output capacitor to maintain stability and improve transient response is necessary.
The value of this capacitor is dependent upon the output current, lower currents allow smaller capacitors. TS3915x
series output capacitor selection is dependent upon the ESR of the output capacitor to maintain stability. When the
output capacitor is 10uF or greater, the output capacitor should have an ESR less than 2Ω. This will improve transient
response as well as promote stability. Ultra low ESR capacitors (<100mΩ), such as ceramic chip capacitors, may
promote instability. These very low ESR levels may cause an oscillation and/or under damped transient response. A
low ESR solid tantalum capacitor works extremely well and provides good transient response and stability over
temperature aluminum electrolytes can also be used, as long as the ESR of the capacitor is <2Ω. The value of the
output capacitor can be increased without limit. Higher capacitance values help to improve transient response and
ripple rejection and reduce output noise.
Input Capacitor Requirement
An input capacitor of 1uF or greater is recommended when the device is more than 4” away from the bulk AC supply
capacitance or when the supply is a battery. Small, surface mount, ceramic chip capacitors can be used for bypassing.
Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity
of the output voltage.
Minimum Load Current
The TS3915x series is specified between finite loads. If the output current is too small leakage currents dominate and
the output voltage rises. A 10mA minimum load current is necessary for proper regulation.
Adjustable Regulator Design
The adjustable regulator versions (TS39152) is allow to programming the output voltage anywhere between 1.25 and
the 16V maximum operating rating of the family.
Two resistors are used. Resistors can be quite large up to 1MΩ, because of the very high input impedance and low
bias current of the sense comparator, the resistor values are calculated by:
Where V
OUT
is the desired output voltage. Above application circuit shows component definition. Applications with
widely varying load currents may scale the resistors to draw the minimum load current required for proper operation.
5/12
Version: A07
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