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PDF AIC1189 Data sheet ( Hoja de datos )
| Número de pieza | AIC1189 | |
| Descripción | Ultra LDO 2A Linear Regulator | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1189
Ultra LDO 2A Linear Regulator With
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.
Adjustable Output Voltage are available from
0.8~4.5V.
：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.
APPLICATIONS
LCD TV, LCD Monitor, DPF.
Networking, STB.
Portable AV Equipment.
Note Book PC Applications.
PC Peripherals.
Adjustable & Bypass Pin
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.
TYPICAL APPLICATION CIRCUIT
AIC1189-33
Vin 1 VIN
VOUT 3 Vout
GND
3.3V
Cin
4.7uF
Cout
4.7uF
Vin
ENABLE
Cin
4.7uF
AIC1189AL-33
2 VIN
VOUT
4
1 EN
ADJ 5
GND
R1
300k
R2
120k
Vout
2.8V
Cout
4.7uF
Fixed Linear Regulator
Adjustable Linear Regulator
Analog Integrations Corporation
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-02 011909
1
1 page  
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.
5
5 Page 
AIC1189
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
CBP = 0nF
EN
CBP = 0.1nF
EN
VOUT
IIN
Fig19. Start-up waveform without bypass capacitor
CBP = 22nF
EN
VOUT
IIN
Fig20. Start-up waveform with 0.1nF bypass capacitor
EN
VOUT
IIN
Fig21. Start-up waveform with 22nF bypass capacitor
-20
V = 5V, I = 10mA
IN OUT
-30
C = C = 4.7µF
IN OUT
-40
-50
-60
-70
-80
10
100 1k 10k 100k
Frequency (Hz)
Fig23. PSRR vs. Frequency
1M
VOUT
Fig22. Shutdown Transient
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AIC1189.PDF ] | |
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