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Taiwan Semiconductor Company |
TS9002
300mA CMOS LDO with Enable & Power Good
Pin assignment
1. Input
2. Ground
3. Enable
4. Power Good
5. Output
Low Drop Out Voltage 0.4V
Enable Shutdown
Power Good
General Description
The TS9002 series is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent
current (30uA 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 TS9002 series is included a precision voltage reference, 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.
This series are offered in 5-pin SOT-25 package.
Features
Ordering Information
Dropout voltage typically 0.4V@Io=300mA (Vo>2.5V)
Low power consumption
Output voltage +/-2%, +/-3% (1.2V)
Internal current limit and thermal shutdown
Short circuit current fold-back
Power saving shutdown mode
Power good output function
Applications
Palmtops
Video recorders
Battery powered equipment
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PC peripherals
High-efficiency linear power supplies
Digital signal camera
Part No.
Operating Temp. Package
(Ambient)
TS9002xCX5
-40 ~ +85 oC
SOT-25
Note: Where x denotes voltage option, available are
1=1.2V
A=1.5V
K=2.5V,
S=3.3V,
Contact factory for additional voltage options.
Typical Application Circuit
Block Diagram
TS9002 series
1-1 2004/09 rev. B
Absolute Maximum Rating
Input Supply Voltage
Vin +7
Enable Input Voltage
Vce Gnd-0.3 ~ Vin+0.3
Output Current
Io Pd / (Vin – Vout)
Power Dissipation
Thermal Resistance
PD 380
Өja 260
Operating Junction Temperature Range
Tj
-40 ~ +125
Storage Temperature Range
TSTG
-65 ~ +150
Lead Soldering Temperature (260 oC)
10
Caution: Stress above the listed absolute rating may cause permanent damage to the device.
Electrical Characteristics
V
V
mW
oC/W
oC
oC
S
(Ta = 25 oC, Io=0.1mA, Cout=2.2uF, Vce≥2V; Vin >2.7V & Io<150mA for 1.2V output type, unless otherwise specified.)
Parameter
Conditions
Min Typ Max Unit
Output Voltage
Vin=Vo + 1V Vout > 1.5V 0.985|Vo|
1.015|Vo|
V
Vout Temperature Coefficient
Vin=2.7V
Vout <1.5V 0.970|Vo|
1.030|Vo|
-- 30 -- ppm/ oC
Maximum Output Current
Vin=Vo + 1V Vout > 1.5V
300
--
-- mA
Vin=2.7V
Vout <1.5V
150
--
--
Line Regulation
Vo+1V ≤ Vin ≤ Vo+2V
-- -- 0.3 %
Load Regulation
Load Regulation (1.2V output)
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Vin=Vo+1V, 1mA≤IL≤300mA
Vin=2.7V, 1mA≤IL≤150mA
Io=300mA,
Vout≥2.0V
--
--
--
0.2 1.0 %
1 4.0
300 400 mV
Vout=Vo - 2% Vout<2.0V
--
800 1300
Quiescent Current
Vin≤0.4V (shutdown)
-- 1 2 uA
Quiescent Current
Vout≥0.4V,
Vout > 1.5V
--
30 50 uA
Io=0mA
Vout <1.5V
--
50 80
Output Current Limit
Vout=0V
Vout > 1.5V
--
450
-- mA
Vout <1.5V
--
350
--
Power Supply Rejection Ratio
Io=100mA,
At f=1kHz,
--
50
-- dB
At f=10kHz,
--
20
--
Output Noise
Io=10mA, f=10Hz to 100kHz,
--
30
-- uVrms
Enable Input
Enable Input Logic-Low Voltage
Enable Input Logic-High Voltage
Enable Input Current
Regulation shutdown
Regulation enable
VIL≤0.4V
VIL≥2.0V
-- -- 0.4 V
2.0 --
-- V
-- -- 0.5 uA
-- -- 0.1
TS9002 series
2-2 2004/09 rev. B
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