TSC TS9004

TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
SOT-26
Pin Definition:
1. Input
2. Ground
3. Enable
4. Power Good
5. Adjustable
6. Output
SOT-25
Pin Definition:
1. Input
2. Ground
3. Enable
4. Adjustable
5. Output
General Description
The TS9004 is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current
(35uA typ.), low dropout voltage, and high output voltage accuracy, making them ideal for battery applications. The
Chip Enable (CE) includes a CMOS or TTL compatible input allows the output to be turned off to prolong battery life.
The TS9004 is included a precision voltage reference, current fold-back, error correction circuit, a current limited
output driver, over temperature shutdown, and a “Power Good” detector, which pulls low when the output is out of
regulation.
Features
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Ordering Information
Very Low Dropout
Low power consumption: 35uA(typ.)
Output voltage ±2%
Internal current limit and thermal shutdown
Short circuit current fold-back
Power saving shutdown mode
Power good output function
Adjustable output voltage
Part No.
Package
Packing
TS9004CX5 RF
TS9004CX6 RF
SOT-25
SOT-26
3Kpcs / 7” Reel
3Kpcs / 7” Reel
Typical Application Circuit
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VOUT
VIN
Applications
Palmtops
Video recorders
Battery powered equipment
PC peripherals
High-efficiency linear power supplies
Digital Signal Camera
EN
off
R1
on
R2
C2
100p
COUT
2.2uF
Block Diagram
VIN
VOUT
R1
EN
off
on
R2
C2
100p
COUT
2.2uF
VOUT = 1.215 (R1+R2)/R2
C2 is unnecessary when R1 or R2 < 20K
PG pin is only available in the SOT-26 package
Connected to output for Power Good or left floating
1/7
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
Input Supply Voltage
VIN
+8
Enable Input Voltage
VCE
Gnd-0.3 ~ VIN +0.3
Output Current
IO
PD / (VIN – VOUT)
Power Dissipation
PD
Internal Limited
Thermal Resistance
ӨJA
140
Operating Ambient Temperature Range
TA
-40 ~ +85
Operating Junction Temperature Range
TJ
-40 ~ +125
Storage Temperature Range
TSTG
-65 ~ +150
o
Lead Soldering Temperature (260 C)
10
ESD Classification
HBM
2k
Notes: Stress above the listed absolute rating may cause permanent damage to the device.
V
V
mA
o
C/W
o
C
o
C
o
C
S
V
Electrical Characteristics (Ta = 25oC, unless otherwise noted)
Parameter
Input Voltage
Output Voltage Accuracy
Symbol
VIN
VO
Test Condition
(Note 1)
IO =1mA
1.5V< VO(NOM ≤2.0V
2.0V< VO(NOM ≤2.8V
2.8V< VO(NOM <3.8V
VDROP
IO =300mA
VO =VO(NOM) -2.0%
IO
ILIM
ISC
IGND
VO >1.2V
VO >1.2V
VO <0.8V (Note 2)
IO =1mA to 300mA
Line Regulation
REGLINE
IO =5mA
VIN= VO +1 to VO +2
Load Regulation
Over Temperature
Shutdown
Over Temperature
Hysterisis
VO Temperature
Coefficient
REGLOAD
IO =1mA to 300mA
Dropout Voltage
Output Current
Current Limit
Short Circuit Current
Ground Pin Current
Power Supply Rejection
Output Voltage Noise
ADJ Input Bias Current
ADJ Reference Voltage
EN Input Threshold
VO < 2.0V
VO ≥ 2.0V
Min
Typ
Max
Units
--2
---300
300
------
---
V
%
-450
150
35
-0.02
0.2
7
+2
1300
400
300
--300
-0.15
0.1
1
See
chart
mV
mA
mA
mA
mA
%
%
%
OTS
--
150
--
o
OTH
--
30
--
o
TC
--
30
--
ppm/ C
PSRR
eN
IADJ
VREF
VEH
VEL
C
C
o
IO =100mA
CO=2.2mF
f=100Hz
f=1kHz
f=10kHz
----
60
50
20
----
dB
f=10Hz to 100kHz
IO =10mA,CBYP=0mF
CO =2.2nF
--
30
--
mVrms
-1.2
2.0
0
1
1.215
---
-1.23
VIN
0.4
mA
V
V
V
VIN=2.7V to 7V
VIN =2.7V to 7V
2/7
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
Electrical Characteristics (Ta = 25oC, unless otherwise noted) (Continue)
Parameter
EN Input Bias Current
Symbol
IEH
IEL
Test Condition
VEN= VIN, VIN =2.7V to 7V
VEN =0V, VIN =2.7V to 7V
Min
Typ
Max
Units
---
---
0.1
0.5
mA
mA
Shutdown Supply
ISD
VIN =5V, VO=0V VEN < VEL
-0.5
1
mA
Current
Shutdown Output
VO,SD
IO =35mA, VEN < VEL
0
-0.1
V
Voltage
Output Under Voltage
VUV
--85
% VO (NOM)
Output Over Voltage
VOV
115
--% VO (NOM)
PG Leakage Current
ILC
VPG=7V
--1
mA
PG Voltage Rating
VPG
VO in regulation
--7
V
PG Voltage Low
VOL
ISINK=0.4mA
--0.4
V
Note1: VIN(MIN)=VOUT+VDROPOUT
Note2: 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.
Detailed Description
The TS9004 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, overcurrent protection, thermal shutdown, and Power Good detection circuitry. The P-channel pass transistor receives data
from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error
amplifier compares the output voltage to a precision
o reference. Over-current and Thermal shutdown circuits become
active when the junction temperature exceeds 150 C, or the current exceeds 300mA. During thermal shutdown,
the
o
output voltage remains low. Normal operation is restored when the junction temperature drops below 120 C. The
TS9004 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents
over-stress. The TS9004 also incorporates current foldback to reduce power dissipation when the output is short
circuited. This feature becomes active when the output drops below 0.8volts, and reduces the current flow by 65%. Full
current is restored when the voltage exceeds 0.8 volts.
External Capacitors
The TS9004 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.
Power Good
The TS9004 includes the Power Good feature. When the output is not within +10% of the specified voltage, it pulls low.
This can occur under the following conditions:
(1) Input Voltage too low. (2) During Over-Temperature. (3) During Over-Current. (4) If output is pulled up.
(Note: PG pin is an open-drain output.)
3/7
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
Electrical Characteristics Curve
Figure 1. Ground Current vs. Input Voltage
Figure 2. Current Limit Response
Figure 3. Line Transient Response
Figure 4. Load Step (1mA~300mA)
Figure 5. Chip Enable Transient Response
Figure 6. Vdrop vs. Vout
4/7
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
SOT-26 Mechanical Drawing
DIM
5/7
SOT-26 DIMENSION
MILLIMETERS
INCHES
MIN
MIN
TYP
MAX
TYP
A
0.95 BSC
0.0374 BSC
A1
1.9 BSC
MAX
B
2.60
2.80
3.00
0.0748 BSC
0.1024 0.1102 0.1181
C
1.40
1.50
1.70
0.0551
0.0591
0.0669
0.1142
0.1220
0.0433
0.0472
D
2.80
2.90
3.10
0.1101
E
1.00
1.10
1.20
0.0394
F
0.00
--
0.10
0.00
0.0157
0.0197
0.0039
G
0.35
0.40
0.50
0.0138
H
0.10
0.15
0.20
0.0039
0.0059
0.0079
I
0.30
--
0.60
0.0118
--
0.0236
J
5º
--
10º
5º
--
10º
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
SOT-25 Mechanical Drawing
DIM
A+A1
B
C
D
E
E
H
L
Ө1
S1
6/7
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
Version: A07
TS9004 Series
300mA CMOS LDO
Adjustable Voltage with Enable & Power Good
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.
7/7
Version: A07