AIC1189-XXPY3 [AIC]
Ultra LDO 2A Linear Regulator With Adjustable & Bypass Pin; 超2A LDO线性稳压器，带有可调节和旁路引脚
| 型号： | AIC1189-XXPY3 |
| 厂家： | 
ANALOG INTERGRATIONS CORPORATION |
| 描述： | Ultra LDO 2A Linear Regulator With Adjustable & Bypass Pin |
| 文件： | 总20页 (文件大小：562K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AIC1189
Ultra LDO 2A Linear Regulator With
Adjustable & Bypass Pin
FEATURES
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.
ꢁ
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.
The AIC1189 offers high precision output voltage
of 2% tolerance. Output voltage can also be
adjusted for those other than the preset values.
ꢁ
ꢁ
Adjustable Output Voltage are available from
0.8~4.5V.
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.
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
ꢀ
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.
ꢁ
LCD TV, LCD Monitor, DPF.
Networking, STB.
ꢁ
ꢁ
ꢁ
ꢁ
Portable AV Equipment.
Note Book PC Applications.
PC Peripherals.
TYPICAL APPLICATION CIRCUIT
ꢀ
AIC1189AL-33
AIC1189-33
2
1
4
5
Vin
VIN
EN
VOUT
ADJ
Vout
2.8V
1
3
Vin
VIN
VOUT
Vout
3.3V
R1
300k
ENABLE
GND
GND
Cin
4.7uF
Cout
4.7uF
Cin
4.7uF
Cout
4.7uF
R2
120k
Fixed Linear Regulator
Adjustable Linear Regulator
Analog Integrations Corporation
Si-Soft Research Center
DS-1189G-02 011909
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
1
AIC1189
ꢀ
TYPICAL APPLICATION CIRCUIT (Continued)
EN/SD
SW1
AIC1189L
EN/SD
1
2
3
4
8
7
6
5
GND
GND
BP
Vin
VIN
Vout
2.8V
VOUT
ADJ
R1
300K
GND
Cbp
22nF
Cin
4.7uF
Cout
4.7uF
R2
120K
Adjustable Linear Regulator in SOP-8 Package
ꢀ
ORDERING INFORMATION
AIC1189-XXXXX XX
3 PIN CONFIGURATION
SOT-223 (Y3)
TOP VIEW
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
1: VIN
2: GND (TAB)
3: VOUT
PACKAGE TYPE
Y3: SOT-223
E3: TO-252
1
2
3
M3: TO-263
T3: TO-220
TO-252 (E3)
TOP VIEW
P: Lead Free Commercial
G: Green Package
1: VIN
2: GND (TAB)
3: VOUT
1
2
3
OUTPUT VOLTAGE
12: 1.2V
15: 1.5V
18: 1.8V
20: 2.0V
TO-263 (M3)
TOP VIEW
25: 2.5V
27: 2.7V
30: 3.0V
33: 3.3V
1: VIN
2: GND (TAB)
3: VOUT
1
2
3
35: 3.5V
37: 3.7V
38: 3.8V
TO-220 (T3)
TOP VIEW
(Of a unit of 0.1V within
0.8~4.5V, additional voltage
versions are available on
demand)
1: VIN
2: GND (TAB)
3: VOUT
1
2
3
Example: AIC1189-18PE3TR
ꢂ 1.8V Version, in TO-252 Lead Free
Package & Tape & Reel Packing Type
2
AIC1189
ꢀ
ORDERING INFORMATION (Continued)
AIC1189XX-XXXXXXX
5 PIN CONFIGURATION
TO-252-5 (E5)
TOP VIEW
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
1 2 3 4 5
1: EN / EN
2: VIN
3: GND (TAB)
4: VOUT
5: BP/ ADJ
PACKAGE TYPE
E5: TO-252-5
M5: TO-263-5
P: Lead Free Commercial
G: Green Package
TO-263-5 (M5)
TOP VIEW
OUTPUT VOLTAGE
12: 1.2V
15: 1.5V
18: 1.8V
1 2 3 4 5
1: EN / EN
2: VIN
3: GND (TAB)
4: VOUT
5: BP/ ADJ
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
B: Bypass
A: ADJ
Example: AIC1189BH-18PM5TR
ꢂ With Bypass Pin, Chip Enable High,
1.8V Version, in TO-263-5 Lead Free
Package & Tape & Reel Packing Type
3
AIC1189
ꢀ
ORDERING INFORMATION (Continued)
AIC1189X-XXXXXXX
8 PIN CONFIGURATION
SOP-8 (R8) Exposed Pad (Heat Sink)
TOP VIEW
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
1: EN / EN
2: VIN
8
1
7
2
3
4
3: VOUT
4: ADJ
5: GND (TAB)
6: BP
PACKAGE TYPE
R8: SOP-8
6
5
G: Green Package
7: GND (TAB)
8: GND (TAB)
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
ꢂ Chip Enable High, 1.8V Version, in
SOP-8 Green Package & Tape & Reel
Packing Type
ꢁ Marking
Part No
AIC1189-xxPY3
Marking
HAxxP
Part No
Marking
HAxxG
AIC1189-xxGY3
xx represents output voltage. (08=0.8V, 09=0.9V, ….…, 44=4.4V, 45=4.5V)
4
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
AIC1189
ELECTRICAL CHARACTERISTICS
(CIN = Cout = 4.7µF, CBP = 22nF, VIN = VOUT + 1V, TJ=25°C, unless otherwise specified) (Note 1)
ꢀ
PARAMETER
TEST CONDITIONS
SYMBOL MIN.
TYP.
MAX.
5.5
2
UNIT
V
Input Voltage (Note 2)
Output Voltage Tolerance
Continuous Output Current
VIN
VOUT
IOUT
2.3
-2
2
IOUT =1mA
%
A
Chip Enable Low, VEN 0.4V,
IOUT = 0 mA
Quiescent Current
GND Pin Current
IQ
80
90
110
120
µA
µA
Chip Enable High, VEN 1.6V,
IOUT = 0 mA
Chip Enable Low, VEN 0.4V,
IOUT = 2A
IGND
Chip Enable High, VEN 1.6V,
IOUT = 2A
Chip Enable Low, VEN VIN
Standby Current
ISTBY
IIL
0.01
3.2
0.5
3.9
µA
Chip Enable High, VEN
RLOAD = 0.1
0
Output Current Limit
2.2
A
IOUT = 1.5A, 0.8V VOUT<2V
IOUT = 2A, 0.8V VOUT<2V
IOUT = 1.5A, 2V VOUT<2.8V
IOUT = 2A, 2V VOUT<2.8V
IOUT = 1.5A, VOUT 2.8V
IOUT = 2A, VOUT 2.8V
1500
1500
450
600
600
800
Dropout Voltage
Line Regulation
VDROP
mV
mV
330
440
530
700
VIN = VOUT + 1V to 5.5V,
∆VLIR
2.5
10
15
IOUT =1mA
Load Regulation
Ripple Rejection
IOUT =1mA to 2A
∆VLOR
5
mV
dB
f=1KHz, Ripple=0.5Vp-p,
CBP = 22nF, f= 10~100KHz
PSRR
70
24
50
Output Noise Voltage
Temperature Coefficient
µVrms
ppm/
TC
Thermal Shutdown
Temperature
VIN = VOUT + 1V
TSD
150
20
Thermal Shutdown
Hysteresis
∆TSD
ADJ Pin Specifications
ADJ Pin Current
VADJ = VREF
IADJ
10
100
0.2
nA
V
ADJ Pin Threshold
VTH(ADJ)
0.05
0.1
Reference Voltage
Tolerance
VREF
0.784
0.8
0.816
V
6
AIC1189
ELECTRICAL CHARACTERISTICS (Continued)
ꢀ
PARAMETER
TEST CONDITIONS
SYMBOL MIN.
TYP.
MAX.
UNIT
Shutdown Pin Specifications
Shutdown Pin Current
VEN = VIN or GND
IOUT = 30mA
IEN
0
100
100
nA
Shutdown Exit Delay Time
∆t
100
µS
Max Output Discharge
Resistance to GND during
Shutdown
RDSON_
CLMP
20
Chip Enable Low, Output OFF,
VIN 2.3V to 5.5V
Chip Enable High, Output ON,
VIN 2.3V to 5.5V
=
VENH
1.6
=
Shutdown Input Threshold
V
Chip Enable Low, Output ON,
VIN 2.3V to 5.5V
Chip Enable High, Output OFF,
VIN 2.3V to 5.5V
=
VENL
0.4
=
Note 1: Specifications are production tested at T =25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
A
Note 2: For SOP-8 Package, VIN
= 2.3V to 5.0V.
7
AIC1189
TYPICAL PERFORMANCE CHARACTERISTICS
ꢀ
90
90
VIN = VOUT + 1V
85
85
80
80
V
= 1.8V
OUT
V
V
= 3.3V
= 1.2V
OUT
OUT
V
V
= 3.3V
= 1.8V
OUT
75
70
65
75
70
65
OUT
V
= 1.2V
OUT
1E-3
0.01
0.1
1
10
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Loading Current (mA)
Fig2. Ground Current vs. Loading Current
Input Voltage (V)
Fig1. Quiescent Current vs. Input Voltage
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
90
85
80
75
70
65
60
V
= V
+ 1V
V
= V
+ 1V
OUT
IN
OUT
IN
V
= 3.3V
= 1.2V
OUT
V
= 1.8V
OUT
V
= 1.8V
V
OUT
OUT
V
= 1.2V
OUT
V
= 3.3V
80
OUT
-40
-20
0
20
40
60
-40
-20
0
20
40
60
80
Temperature (oC)
Fig3. Output Voltage Variation vs. Temperature
Temperature (oC)
Fig4. Quiescent Current vs. Temperature
800
700
600
500
400
300
200
600
500
400
300
200
100
0
V
= 1.8V
V
= 3.3V
OUT
OUT
T = 85oC
T = 85oC
T = 25oC
T = 25oC
T = -40oC
T = -40oC
Minimum Operation Voltage
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Output Current (A)
Fig6. Dropout Voltage vs. Output Current
Output Current (A)
Fig5. Dropout Voltage vs. Output Current
8
AIC1189
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
ꢀ
1.224
1.216
1.208
1.200
1.192
1.184
1.176
1.224
1.216
1.208
1.200
1.192
1.184
1.176
V
= 2.3V
IN
2.5
3.0
3.5
4.0
4.5
5.0
5.5
1E-3
0.01
0.1
1
10
100
Input VOltage (V)
Fig7. Output Voltage vs. Input Voltage
Loading Current (mA)
Fig8. Output Voltage vs. Loading Current
1.836
1.824
1.812
1.800
1.788
1.776
1.764
1.836
1.824
1.812
1.800
1.788
1.776
1.764
V
= 2.8V
IN
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.01
0.1
1
10
100
Input VOltage (V)
Fig9. Output Voltage vs. Input Voltage
Loading Current (mA)
Fig10. Output Voltage vs. Loading Current
3.366
3.344
3.322
3.300
3.278
3.256
3.234
3.366
V
= 4.3V
IN
3.344
3.322
3.300
3.278
3.256
3.234
3.3
3.6
3.9
4.2
4.5
4.8
5.1
5.4
0.01
0.1
1
10
100
Input VOltage (V)
Fig11. Output Voltage vs. Input Voltage
Loading Current (mA)
Fig12. Output Voltage vs. Loading Current
9
AIC1189
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
ꢀ
IOUT = 1mA to 2A
VOUT = 1.2V
VOUT = 1.2V
IOUT = 1A
VIN
V
OUT Ripple
IOUT
VOUT Ripple
Fig14. Line Transient Response at VOUT=1.2V, IOUT=1A
Fig13. Load Transient Response at VIN=2.3V, VOUT=1.2V
IOUT = 1A
VOUT = 1.8V
IOUT = 1mA to 2A
VOUT = 1.8V
VIN
VOUT Ripple
IOUT
VOUT Ripple
Fig16. Line Transient Response at VOUT=1.8V, IOUT=1A
Fig15. Load Transient Response at VIN=2.8V, VOUT=1.8V
IOUT = 1A
VOUT = 3.3V
VOUT = 3.3V
IOUT = 1mA to 2A
VIN
VOUT Ripple
IOUT
VOUT Ripple
Fig18. Line Transient Response at VOUT=3.3V, IOUT=1A
Fig17. Load Transient Response at VIN=4.3V, VOUT=3.3V
10
AIC1189
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
ꢀ
CBP = 0nF
CBP = 0.1nF
EN
EN
VOUT
VOUT
IIN
IIN
Fig19. Start-up waveform without bypass capacitor
Fig20. Start-up waveform with 0.1nF bypass capacitor
CBP = 22nF
EN
EN
VOUT
VOUT
IIN
Fig21. Start-up waveform with 22nF bypass capacitor
Fig22. Shutdown Transient
-20
-30
-40
-50
-60
-70
-80
V
= 5V, I
= 10mA
OUT
IN
C
= C
= 4.7µF
OUT
IN
10
100
1k
10k
100k
1M
Frequency (Hz)
Fig23. PSRR vs. Frequency
11
AIC1189
BLOCK DIAGRAM
ꢀ
PIN DESCRIPTION
ꢀ
VIN
– Power supply input pin. Bypass with a 4.7µF capacitor to GND
GND
VOUT
– Ground.
– Regulator Output pin. Sources up to 2A.
EN (5 Pin and 8 Pin) – Chip Enable (Active Low). This pin isn’t allowed to float.
EN (5 Pin and 8 Pin) – Chip Enable (Active High). This pin isn’t allowed to float.
BP (5 Pin and 8 Pin) – Bypass pin. It should be connected to external 22nF capacitor to GND to reduce output
noise. The bypass pin could be floating if it’s unnecessary.
ADJ (5 Pin and 8 Pin) – The output voltage can either be set by the internal feedback resistors when this pin is
grounded, or be set by the external feedback resistors when using a resistive divider.
12
AIC1189
APPLICATION INFORMATION
ꢀ
The AIC1189 is a high performance linear regulator
that provides low-dropout voltage and low quiescent-
current. The device is available in an adjustable
version and fixed output voltages ranging from 1.2V to
3.8V, and the device can supply loads up to 2A.
The output voltage of AIC1189 linear regulator can be
set by its internal feedback resistors when the ADJ pin
is grounded. In addition, the output voltage of AIC1189
linear regulator can be set by the external feedback
resistors when connecting a resistive divider R1 and R2.
While connecting a resistive divider, VOUT can be
calculated as:
SHUTDOWN
By connecting EN(EN) pin to VIN(ground), the AIC1189
can be shut down to reduce the supply current to
0.01µA(typ.). At this operation mode, the output
voltage of AIC1189 is equal to 0V.
R
1
VOUT = 0.8× 1+
R2
The resistive divider should sit as close to ADJ pin as
possible.
CURRENT LIMIT
POWER DISSIPATION
The AIC1189 includes a current limiter, which monitors
and controls the maximum output current. If the output
is overloaded or shorted to ground, this can protect the
device from being damaged.
The maximum power dissipation of AIC1189 depends
on the thermal resistance of its case and circuit board,
the temperature difference between the die junction
and ambient air, and the rate of airflow. The rate of
temperature rise is greatly affected by the mounting
pad configuration on the PCB, the board material, and
the ambient temperature. When the IC mounting with
good thermal conductivity is used, the junction
temperature will be low even when large power
dissipation applies.
THERMAL PROTECTION
The AIC1189 includes a thermal-limiting circuit, which
is designed to protect the device against overload
condition. When the junction temperature exceeds
TJ=150ºC, the thermal-limiting circuit turns off the pass
transistor and allows the IC to cool. For continuous
load condition, maximum rating of junction temperature
must not be exceeded.
The power dissipation across the device is
P = IOUT (VIN-VOUT
)
The maximum power dissipation is:
(TJ-max - TA )
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output capacitors to
maintain stability. Input capacitor at 4.7µF with a 4.7µF
ceramic output capacitor is recommended. To avoid
oscillation, it is recommended to follow the figure of
“Region of Stable COUT ESR vs. Load Current” to
choose proper capacitor specifications.
P
MAX
=
RθJA
Where TJ-max is the maximum allowable junction
temperature (150°C), and TA is the ambient
temperature suitable in application.
As a general rule, the lower temperature is, the better
reliability of the device is. So the PCB mounting pad
should provide maximum thermal conductivity to
maintain low device temperature.
When choosing the input and output ceramic
capacitors, X5R and X7R types are recommended
because they retain their capacitance over wider
ranges of voltage and temperature than other types.
LAYOUT CONSIDERATION
Connect the bottom-side pad (available in SOP-8
Exposed Pad) to a large ground plane. Use as much
copper as possible to decrease the thermal
resistance of the device.
NOISE BYPASS CAPACITOR
A 22nF bypass capacitor at BP pin can reduce output
voltage noise. The bypass pin can be floating if it’s
unnecessary.
OUTPUT VOLTAGE PROGRAMMING
13
AIC1189
PHYSICAL DIMENSIONS
ꢀ
ꢁ SOT-223 PACKAGE OUTLINE DRAWING
14
AIC1189
ꢁ
TO-252-3L PACKAGE OUTLINE DRAWING
θ
15
AIC1189
ꢁ
TO-252-5L PACKAGE OUTLINE DRAWING
16
AIC1189
ꢁ
TO-263-3L PIN PACKAGE OUTLINE DRAWING
17
AIC1189
ꢁ
TO-263-5L PACKAGE OUTLINE DRAWING
18
AIC1189
ꢁ
TO-220 PACKAGE OUTLINE DRAWING
19
AIC1189
ꢁ
SOP-8 Exposed Pad (Heat Sink) PACKAGE OUTLINE DRAWING
D 1
E 1
Note:
Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry
other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may result
from its use. We reserve the right to change the circuitry and specifications without notice.
Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or
systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose failure to
perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a
significant injury to the user.
20
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