AIC1189
Ultra LDO 2A Linear Regulator With
Adjustable & Bypass Pin
FEATURES
Guaranteed 2A Output Current.
Fast Response in Line/Load Transient.
Wide Operating Voltage Ranges: 2.3V to 5.5V.
0.01µA Shutdown Standby Current .
Low Quiescent Current: 80µA.
Fixed: 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.7V, 3.0V,
3.3V, 3.5V, 3.7V, 3.8V Output Voltage.
Output Voltage are available from 0.8~5.0V in
Adjustable Version.
Low Dropout 330mV at 1.5A and 2.8V output
voltage, 440mV at 2A and 2.8V output voltage.
High PSRR 70dB at 1kHz.
Active Low or High Shutdown Control.Current
Limit and Thermal Protection.
Available in 2% Output Tolerance.
Available in SOT-223 & TO-220 (3 pin) & SOP-
8 (8 pin) and TO-252 &TO-263 (3 & 5 pin)
Package.
DESCRIPTION
A low noise, high PSRR and ultra low dropout
linear regulator AIC1189 is optimized for low ESR
ceramic capacitors operation with 2A continuous
current. The AIC1189 is designed for portable and
wireless devices with demanding performance
and space requirements.
The AIC1189 offers high precision output voltage
of
±2%
tolerance. Output voltage can also be
adjusted for those other than the preset values.
A noise bypass pin is available for further
reduction of output noise. The bypass pin could
be floating if it’s unnecessary. At 2A load current
and 2.8V output voltage, a 440mV dropout is
performed. The quality of low quiescent current
and low dropout voltage makes this device ideal
for battery power applications. The high ripple
rejection and low noise of the AIC1189 provide
enhanced performances for critical applications
such as cellular phones, and PDAs.
In addition, a logic-level shutdown input is
included, which reduce supply current to 0.01µA
(typ.) in shutdown mode with fast turn-on time
less than 100µs. The AIC1189’s current limit and
thermal protection provide protection against any
overload condition that would create excessive
junction temperatures.
APPLICATIONS
LCD TV, LCD Monitor, DPF.
Networking, STB.
Portable AV Equipment.
Note Book PC Applications.
PC Peripherals.
TYPICAL APPLICATION CIRCUIT
AIC1189-33
Vin
1
VIN
GND
Cin
4.7uF
2
VOUT
3
Vin
2
1
Cin
4.7uF
3
AIC1189AL-33
VIN
EN
GND
VOUT
ADJ
4
5
R1
300k
Fixed Linear Regulator
Analog Integrations Corporation
：
：
±
Vout
3.3V
Cout
4.7uF
Vout
2.8V
ENABLE
R2
120k
Cout
4.7uF
Adjustable Linear Regulator
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500,
FAX: 886-3-5772510
www.analog.com.tw
DS-1189G-04 062909
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AIC1189
ORDERING INFORMATION
AIC1189X-XXXXXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGE TYPE
R8: SOP-8
G: Green Package
(Continued)
8 PIN CONFIGURATION
SOP-8 (R8) Exposed Pad (Heat Sink)
TOP VIEW
1: EN / EN
2: VIN
3: VOUT
4: ADJ
5: GND (TAB)
6: BP
7: GND (TAB)
8: GND (TAB)
1
2
3
4
8
7
6
5
OUTPUT VOLTAGE
12: 1.2V
15: 1.5V
18: 1.8V
20: 2.0V
25: 2.5V
27: 2.7V
30: 3.0V
33: 3.3V
35: 3.5V
37: 3.7V
38: 3.8V
(Of a unit of 0.1V within
0.8~4.5V, additional voltage
versions are available on
demand)
ENABLE TYPE
L: Chip Enable Low
H: Chip Enable High
Example: AIC1189H-18GR8TR
Chip Enable High, 1.8V Version, in SOP-8 Green Package & Tape
& Reel Packing Type
Output Voltage Could Be Adjusted from 0.8V to 5.0V by External Resistors.
Marking
Part No
AIC1189-xxPY3
Marking
HAxxP
Part No
AIC1189-xxGY3
Marking
HAxxG
xx represents output voltage. (08=0.8V, 09=0.9V, ….…, 44=4.4V, 45=4.5V)
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AIC1189
ABSOLUTE MAXIMUM RATINGS
Input Voltage ....................................................................................................................................... 6V
EN Pin Voltage .................................................................................................................................... 6V
Noise Bypass Terminal Voltage .......................................................................................................... 6V
Operating Temperature Range ............................................................................................ -40ºC~85ºC
Maximum Junction Temperature .................................................................................................. 150ºC
Storage Temperature Range ............................................................................................. -65ºC~150ºC
Lead Temperature (Soldering, 10 sec) ......................................................................................... 260ºC
Thermal Resistance (Junction to Case)
SOT-223 ............................................................... 15ºC /W
TO-252 .................................................................... 8ºC /W
TO-263 .................................................................... 3ºC /W
TO-220 .................................................................... 3ºC /W
SOP-8 (Exposed Pad) .......................................... 15ºC /W
Thermal Resistance (Junction to Ambient) SOT-223 ............................................................. 130ºC /W
(Assume no ambient airflow, no heat sink) TO-252 ................................................................ 100ºC /W
TO-263 .................................................................. 60ºC /W
TO-220 .................................................................. 50ºC /W
SOP-8 (Exposed Pad)
60ºC /W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
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