TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
1/5
Version: C08
SOT
-
25
General Description
The TS9015 is a low dropout voltage linear regulator. There are device designed specifically for battery-operated
systems. Ground current is very small as 50uA(typ), that significantly extending battery life. Low power
consumption and high accuracy is achieved through CMOS and programmable fuse technologies. Output voltage
is able to adjust from 1V to 6V. The TS9015 consists of a high-precision voltage reference, and error correction
circuit, and a current limited output driver. With good transient responses, output remains stable even during load
changes. The EN input enables to be turned off, resulting in reduced power consumption.
TS9015 have high ripple rejection ratios, a 470pF capacitor from the Bypass pin to ground to reduces noise
present on the internal reference, which in turn significantly reduces output noise. If output noise is not a concern,
the Bypass pin may be left unconnected. Larger capacitor values can be used, but the results in a longer time
period to rate output voltage when power is initially applied.
Features
● Output current is excess of 300mA
● Low power consumption: 50uA(typ.)
● Output voltage ±2%
● Internal current limit
● Thermal shutdown
● Power saving shutdown mode
● P-MOS output stage with low Rds(on)
● Adjustable output voltage from 1V to 5.4V
Applications
● Instrumentation
● Wireless device
● Battery powered equipment
● Electronic scales
● Cordless phone
Ordering Information
Part No. Package Packing
TS9015CX5 RF
SOT-25 3Kpcs / 7” Reel
Block Diagram
Typical Application Circuit
V
OUT
= 0.9 ( 1 + R1 / R2 )
C2 is unnecessary when R1 or R2 < 20K
Pin
:
1. Input
2. Ground
3. Enable
4. Adjustable
5. Output
V
IN
EN
V
OUT
Gnd Adj
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
2/5
Version: C08
Absolute Maximum Rating
Parameter Symbol Limit Unit
Input Supply Voltage V
IN
+2.0 ~ +7 V
Enable Input Voltage V
CE
Gnd-0.3 ~ V
IN
+0.3 V
Output Current I
O
500 mA
Power Dissipation @ T
A
≦25
o
C P
D
400 mW
Thermal Resistance Ө
JA
140
o
C/W
Operating Junction Temperature Range T
J
-40 ~ +125
o
C
Storage Temperature Range T
STG
-65 ~ +150
o
C
Lead Soldering Temperature (260
o
C) 10 S
Notes 1: Stress above the listed absolute rating may cause permanent damage to the device.
Notes 2: Ө
JA
is measured with the PCB copper area of approximately 1 in
2
(multi-layer)
Electrical Characteristics
(Vin=Vout +2V, Ta = 25
o
C, unless otherwise noted)
Parameter Symbol
Test Condition Min Typ
Max Units
Input Voltage V
IN
(Note 1) 2.0 -- 7 V
Dropout Voltage V
DROP
I
O
=300mA
V
O
=V
O(NOM)
-2.0%
1.0V< V
O(NOM
≤2.0V
-- 650 1000
mV 2.0V< V
O(NOM
≤2.8V
-- 450 700
2.8V< V
O(NOM
-- 300 500
Output Current I
O
V
O
>0.96*Vrating 300 -- -- mA
Current Limit I
LIM
-- 500 -- mA
Ground Pin Current I
GND
I
O
=1mA to 150mA -- 50 85 uA
Line Regulation REG
LINE
I
O
=1mA
V
IN
= V
O
+1 to V
O
+2 V
O
< 2.0V -- -- 0.1 %
V
O
≥ 2.0V -- -- 0.15 %
Load Regulation REG
LOAD
I
O
=10mA to 300mA -- 0.2 1 %
Over Temp. Shutdown OTS -- 125 --
o
C
Over Temp. Hysterisis OTH -- 30 --
o
C
Power Supply Rejection
PSRR I
O
=200mA
C
O
=2.2mF
f=100Hz -- 60 -- dB f=1kHz -- 50 --
f=10kHz -- 35 --
Output Voltage Noise eN f=10Hz to 100kHz,
I
O
=10mA C
O
=2.2nF
-- 30 -- mVrm
s
ADJ Input Bias Current
I
ADJ
-- 1 -- uA
ADJ Reference Voltage
V
REF
0.87
0.9 0.918
V
EN Input Threshold V
EH
I
O
=10mA 1.6 -- V
IN
V
V
EL
I
O
=10mA 0 -- 0.4 V
EN Input Bias Current I
EH
V
EN
= V
IN
, V
IN
=2.5V to 7V -- -- 0.1 uA
I
EL
V
EN
=0V, V
IN
=2.5V to 7V -- -- 1 uA
Note 1: V
IN(MIN)
=V
OUT
+V
DROPOUT
Note 2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage
must be applied before a current source load is applied.
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
3/5
Version: C08
Detailed Description
The TS9015 of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current
protection and thermal shutdown. During normal operation, the error amplifier compares the output voltage to a
precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature
exceeds 150
o
C, or the current exceeds 300mA. During thermal shutdown, the output voltage remains low. Normal
operation is restored when the junction temperature drops below 100
o
C. The TS9015 switches from voltage mode
to current mode when the load exceeds the rated output current.
External Capacitors
The TS9015 is stable with an output capacitor to ground of 2.2uF or greater. Ceramic capacitors have the lowest
ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR,
resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive.
One option is to parallel a 0.1uF ceramic capacitor with a 10uF Aluminum Electrolytic. The benefit is low ESR, high
capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize
V
IN
. The input capacitor should be at least 0.1uF to have a beneficial effect.
All capacitors should be placed in close proximity to the pins. A "Quiet" ground termination is desirable. This can be
achieved with a "Star" connection.
Enable
The Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shuts off, and all internal
circuits are powered down. In this state, the quiescent current is less than 1mA. This pin behaves much like an
electronic switch.
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
4/5
Version: C08
SOT-25 Mechanical Drawing
Marking Diagram
A9
= Device Code
Y
= Year Code
M
= Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug,
I
=Sep,
J=Oct, K=Nov, L=Dec)
L
= Lot Code
SOT-25 DIMENSION
DIM
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
A+A1
0.09
1.25
0.0354
0.0492
B
0.30
0.50
0.0118
0.0197
C
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
E
1.90 BSC
0.0748 BSC
H
2.40
3.00
0.09449
0.1181
L
0.35 BSC
0.0138 BSC
Ө1
0º
10º
0º
10º
S1
0.95 BSC
0.0374 BSC
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
5/5
Version: C08
Notice
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assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to
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merchantability, or infringement of any patent, copyright, or other intellectual property right.
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