TS39100/1/2/3/4/5
1A Ultra Low Dropout Voltage Regulator
with Multi-Function
SOT-223
TO-252
(DPAK)
SOP-8
TO-252-5L
(PPAK)
Pin Definition:
TS39100CWxx
1. Input
2. Ground (tab)
3. Output
Pin Definition:
TS39100CPxx
1. Input
2. Ground (tab)
3. Output
Pin Definition:
TS39101CSxx
1. Enable
2. Input
3. Output
4. Flag
5.6.7.8. Ground
TS39102CS
1. Enable
2. Input
3. Output
4. Feedback
5.6.7.8. Ground
Pin Definition:
TS39103CP5xx
TS39104CS
1. Enable
1. Enable
2. Input
2. Input
3. Ground (tab)
3. Feedback
4. Output
4. Output
5.6.7.8. Ground 5. Flag / Feedback
Pin Definition:
TS39105CP5xx
1. Input
2. Enable
3. Output (tab)
4. N/C
5. Ground
General Description
The TS39100/1/2/3/4/5 are 1A ultra low dropout linear voltage regulators that provide low voltage, high current
output from an extremely small package. These regulators offers extremely low dropout (typically 400mV at 1A) and
very low ground current (typically 12mA at 1A).
The TS39100/1/2/3/4/5 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 TS39100/1/2/3/4/5, the enable pin may be tied to Vin if it is not required for enable control.
Features
●
●
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●
Dropout voltage typically 0.4V @Io=1.0A
Output Current up to 1A
Low Ground Current
Extremely Fast Transient Response
Reversed Leakage & Reverse Battery Protection
Error Flag Signals Output (TS39101 only)
Current Limit & Thermal Shutdown Protection
Ordering Information
Part No.
Package
Packing
TS39100CWxx RP
SOT-223
2.5Kpcs / 13” Reel
TS39100CPxx RO
TO-252
2.5Kpcs / 13” Reel
TS39101CSxx RL
SOP-8
2.5Kpcs / 13” Reel
TS39102CS RL
SOP-8
2.5Kpcs / 13” Reel
TS39103CP5xx RO
TO-252-5L 2.5Kpcs / 13” Reel
TS39104CS RL
SOP-8
2.5Kpcs / 13” Reel
TS39105CP5xx RO
TO-252-5L 2.5Kpcs / 13” Reel
Note: Where
xx
denotes voltage option, available are
12=1.24V
15=1.5V
18=1.8V
25=2.5V
33=3.3V
50=5.0V
Leave blank for adjustable version (TS39103)
Contact to factory for addition output voltage option.
Application
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ULDO Linear Regulator for PC add-in Cards
TM
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
Portable Application
Low-Voltage microcontrollers and Digital Logic
1/13
Version: B07
TS39100/1/2/3/4/5
1A Ultra Low Dropout Voltage Regulator
with Multi-Function
Pin Description
Pin Configuration
Enable
Input
Ground
Output
Flag
(fixed voltage)
Feed Back
(adjustable)
Supply Voltage
Enable Voltage
Storage Temperature Range
o
Lead Soldering Temperature (260 C)
ESD
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.
V
IN
V
EN
T
STG
-20V ~ +20
+20
-65 ~ +150
5
(Note 3)
+2.25 ~ +16
+2.25 ~ +16
Internally Limited
-40 ~ +125
o
Absolute Maximum Rating
(Note 1)
V
V
o
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
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
≤
1.0A,
Vo+1V
≤
V
IN
≤
8V
I
L
=10mA
10mA
≤
I
L
≤
1.0A,
2.5V
≤
V
IN
≤
16V
I
L
=10mA, Vo+1V
≤
V
IN
≤
16V
V
IN
=Vout+1V, 8mA≤I
L
≤300mA
V
IN
=Vout+1V, 10mA≤I
L
≤1A
I
L
=100mA
ΔV
OUT
= -1%
I
L
=500mA
I
L
=1.0A
I
L
=100mA
V
IN
= V
OUT
+1V I
L
=500mA
I
L
=1.0A
V
OUT
=0, V
IN
= V
OUT
+1V
Min
0.980|Vo|
0.980|Vo|
0.970|Vo|
--
--
--
--
--
--
--
--
--
--
--
Typ
V
OUT
1.24
(V
REF
)
0.05
0.05
0.2
40
100
275
400
0.7
4.0
12.0
1.8
Max
1.020|Vo|
1.020|Vo|
1.030|Vo|
0.5
0.1
1.0
100
250
350
630
2
6
20
--
Unit
V
V
%
%
ppm/ C
mV
o
Quiescent Current (Note 6)
Current Limited
mA
A
2/13
Version: B07
TS39100/1/2/3/4/5
1A Ultra Low Dropout Voltage Regulator
with Multi-Function
Electrical Characteristics (continues)
Reference (TS39102 / 3/ 4)
Reference Voltage
Reference Voltage
Adjust Pin Bias Current
Reference Voltage Temp. Coefficient
Adjust Pin Bias Current Temp. Coefficient
(Note 7)
(Note 8)
0.980|Vo|
0.970|Vo|
--
--
--
--
--
--
93
--
Low (OFF)
High (ON)
V
EN
=2.25V
V
EN
=0.8V
--
2.25
--
--
40
20
0.1
--
--
--
--
1
--
--
--
--
1.24
1.020|Vo|
1.030|Vo|
120
--
--
2
400
99
--
--
0.8
--
75
4
V
nA
o
ppm/ C
o
nA/ C
uA
mV
%
%
%
Flag Output (TS39101/3)
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
Enable Input (TS39101 / 2 / 3 / 4 / 5)
Input Logic Voltage
Enable Pin Input Current
V
uA
Thermal Performance
Condition
Thermal Resistance
Junction to Case
Package type
SOT-223
Typ
15
Unit
o
C/W
SOP-8
20
TO-252 / TO-252-5L
10
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
3/13
Version: B07
TS39100/1/2/3/4/5
1A Ultra Low Dropout Voltage Regulator
with Multi-Function
Functional Diagram
TS39100 Fixed Regulator Block Diagram
TS39101/3/4/5 Fixed Regulator with Flag and Enable Block Diagram
TS39102/3/4 Adjustable Regulator Block Diagram
4/13
Version: B07
TS39100/1/2/3/4/5
1A Ultra Low Dropout Voltage Regulator
with Multi-Function
Application Information
The TS39100/1/2/3/4/5 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 TS39100/1/2/3/4/5 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 TS39100/1/2/3/4/5 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.
TS39100/1/2/3/4/5 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 TS39100/1/2/3/4/5 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 (TS39102/3/4) 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.
5/13
Version: B07
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