TSC TS9015

TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
SOT-25
Pin Definition:
1. Input
2. Ground
3. Enable
4. Adjustable
5. Output
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
Applications
●
Output current is excess of 300mA
●
Instrumentation
●
Low power consumption: 50uA(typ.)
●
Wireless device
●
Output voltage ±2%
●
Battery powered equipment
●
Internal current limit
●
Electronic scales
●
Thermal shutdown
●
Cordless phone
●
Power saving shutdown mode
Ordering Information
●
P-MOS output stage with low Rds(on)
●
Adjustable output voltage from 1V to 5.4V
Package
Packing
SOT-25
3Kpcs / 7” Reel
Typical Application Circuit
Block Diagram
VIN
Part No.
TS9015CX5 RF
VOUT
EN
Gnd
VOUT = 0.9 ( 1 + R1 / R2 )
Adj
C2 is unnecessary when R1 or R2 < 20K
1/5
Version: C08
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
Input Supply Voltage
VIN
+2.0 ~ +7
V
Enable Input Voltage
VCE
Gnd-0.3 ~ VIN +0.3
V
IO
500
mA
PD
400
Output Current
o
Power Dissipation @ TA ≦25 C
Thermal Resistance
Operating Junction Temperature Range
Storage Temperature Range
mW
o
ӨJA
140
TJ
-40 ~ +125
o
-65 ~ +150
o
TSTG
C/W
C
C
o
Lead Soldering Temperature (260 C)
10
Notes 1: Stress above the listed absolute rating may cause permanent damage to the device.
2
Notes 2: ӨJA is measured with the PCB copper area of approximately 1 in (multi-layer)
S
Electrical Characteristics (Vin=Vout +2V, Ta = 25oC, unless otherwise noted)
Parameter
Symbol
Input Voltage
VIN
Dropout Voltage
VDROP
Output Current
IO
Current Limit
ILIM
Ground Pin Current
IGND
Line Regulation
REGLINE
Load Regulation
REGLOAD
Over Temp. Shutdown
Over Temp. Hysterisis
Power Supply Rejection
Test Condition
Min
Typ
Max
Units
2.0
--
7
V
1.0V< VO(NOM ≤2.0V
--
650
1000
2.0V< VO(NOM ≤2.8V
--
450
700
2.8V< VO(NOM
--
300
500
300
--
--
mA
--
500
--
mA
--
50
85
uA
(Note 1)
IO =300mA
VO =VO(NOM) -2.0%
VO >0.96*Vrating
IO =1mA to 150mA
IO =1mA
VO < 2.0V
--
--
0.1
%
VIN= VO +1 to VO +2
VO ≥ 2.0V
--
--
0.15
%
--
0.2
1
%
--
o
o
IO =10mA to 300mA
OTS
--
OTH
PSRR
mV
IO =200mA
CO=2.2mF
f=10Hz to 100kHz,
125
--
30
--
f=100Hz
--
60
--
f=1kHz
--
50
--
f=10kHz
--
35
--
CO =2.2nF
--
30
--
C
C
dB
mVrm
Output Voltage Noise
eN
ADJ Input Bias Current
IADJ
--
1
--
uA
ADJ Reference Voltage
VREF
0.87
0.9
0.918
V
EN Input Threshold
EN Input Bias Current
IO =10mA
s
VEH
IO =10mA
1.6
--
VIN
V
VEL
IO =10mA
0
--
0.4
V
IEH
VEN= VIN, VIN =2.5V to 7V
--
--
0.1
uA
IEL
VEN =0V, VIN =2.5V to 7V
--1
uA
Note 1: VIN(MIN)=VOUT+VDROPOUT
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.
2/5
Version: C08
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
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
o
exceeds 150 C, or the current exceeds 300mA. During thermal shutdown,
the output voltage remains low. Normal
o
operation is restored when the junction temperature drops below 100 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
VIN. 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.
3/5
Version: C08
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
SOT-25 Mechanical Drawing
DIM
A+A1
B
C
D
E
E
H
L
Ө1
S1
SOT-25 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
0.09
1.25
0.0354
0.0492
0.30
0.50
0.0118
0.0197
0.09
0.25
0.0035
0.0098
2.70
3.10
0.1063
0.1220
1.40
1.80
0.0551
0.0709
1.90 BSC
0.0748 BSC
2.40
3.00
0.09449
0.1181
0.35 BSC
0.0138 BSC
0º
10º
0º
10º
0.95 BSC
0.0374 BSC
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
4/5
Version: C08
TS9015
300mA CMOS LDO
0.9V Adjustable Voltage with Enable Function
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
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
any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of
sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose,
merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify TSC for any damages resulting from such improper use or sale.
5/5
Version: C08