AIC1190-XXPY3 [AIC]
Ultra LDO 1A Linear Regulator With Adjustable & Bypass Pin; 超1A LDO线性稳压器,带有可调节和旁路引脚型号: | AIC1190-XXPY3 |
厂家: | ANALOG INTERGRATIONS CORPORATION |
描述: | Ultra LDO 1A Linear Regulator With Adjustable & Bypass Pin |
文件: | 总19页 (文件大小:759K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
AIC1190
Ultra LDO 1A Linear Regulator With
Adjustable & Bypass Pin
FEATURES
DESCRIPTION
ꢀ
ꢀ
A low noise, high PSRR and ultra low dropout
linear regulator AIC1190 is optimized for low ESR
ceramic capacitors operation with 1A continuous
current.
ꢁ
Guaranteed 1A Output Current.
ꢁ
Fast Response in Line/Load Transient
Wide Operating Voltage Ranges: 2.3V to 6.0V.
ꢁ
ꢁ
ꢁ
ꢁ
0.1µA Shutdown Standby Current
Low Quiescent Current: < 60µA.
The AIC1190 offers high precision output voltage
of 2% tolerance. Output voltage can also be
adjusted for those other than the preset values.
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.
A noise bypass pin is available for further
reduction of output noise. The bypass pin could
be floating if it’s unnecessary. At 1A 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 AIC1190 provide
enhanced performances for critical applications
such as cellular phones, and PDAs.
ꢁ
ꢁ
Adjustable Output Voltage are available from
0.8~4.5V
Low Dropout 440mV at 1A 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 Exposed Pad (Heat Sink) and TO-252 &TO-
263 (3 & 5 pin) Package.
In addition, a logic-level shutdown input is
included, which reduce supply current to less than
0.1µA (typ.) in shutdown mode with fast turn-on
time less than 100µs. The AIC1190’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
DVD, HDD Driver
Portable AV Equipment
PC Peripherals
TYPICAL APPLICATION CIRCUIT
ꢀ
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-1190G-01 123008
1
AIC1190
ꢀ
TYPICAL APPLICATION CIRCUIT (Continued)
Adjustable Linear Regulator in SOP-8 Exposed Pad Package
ꢀ
ORDERING INFORMATION
AIC1190-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: AIC1190-18PE3TR
ꢂ 1.8V Version, in TO-252 Lead Free
Package & Tape & Reel Packing Type
2
AIC1190
ꢀ
ORDERING INFORMATION (Continued)
AIC1190XX-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: AIC1190BH-18PM5TR
ꢂ With Bypass Pin, Chip Enable High,
1.8V Version, in TO-263-5 Lead Free
Package & Tape & Reel Packing Type
3
AIC1190
ꢀ
ORDERING INFORMATION (Continued)
AIC1190X-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
1
2
3
4
8
7
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: AIC1190H-18GR8TR
ꢂ Chip Enable High, 1.8V Version, in
SOP-8 Green Package & Tape & Reel
Packing Type
ꢁ Marking
Part No
AIC1190-xxPY3
Marking
HBxxP
Part No
Marking
HBxxG
AIC1190-xxGY3
xx represents output voltage. (08=0.8V, 09=0.9V, ….…, 44=4.4V, 45=4.5V)
4
AIC1190
ABSOLUTE MAXIMUM RATINGS
ꢀ
Input Voltage.......................................................................................................................................7V
EN Pin Voltage....................................................................................................................................7V
Noise Bypass Terminal Voltage..........................................................................................................7V
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
(Assume no ambient airflow)
SOP-8 (Exposed Pad*) ........................................60ºC /W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
* The package is placed on a two layers PCB with 2 ounces copper and 2 square inch, connected by 8 vias.
5
AIC1190
ELECTRICAL CHARACTERISTICS
(CIN = Cout = 2.2µF, CBP = 22nF, VIN = VOUT + 1V, TJ=25°C, unless otherwise specified) (Note 1)
ꢀ
PARAMETER
Input Voltage
TEST CONDITIONS
SYMBOL MIN.
TYP.
MAX.
6.0
2
UNIT
V
VIN
VOUT
IOUT
2.3
-2
Output Voltage Tolerance
Continuous Output Current
IOUT = 1 mA
%
1.0
A
Chip Enable Low, VEN 0.4V,
IOUT = 0 mA
Quiescent Current
GND Pin Current
IQ
60
60
110
µA
µA
Chip Enable High, VEN 1.6V,
IOUT = 0 mA
Chip Enable Low, VEN 0.4V,
IOUT = 1A
IGND
110
0.5
Chip Enable High, VEN 1.6V,
IOUT = 1A
Chip Enable Low, VEN VIN
Standby Current
ISTBY
IIL
0.1
1.6
µA
Chip Enable High, VEN
RLOAD = 0.1
0
Output Current Limit
1.1
A
IOUT = 1A, 0.8V<VOUT<2V
IOUT = 1A, 2V<VOUT<2.8V
IOUT = 1A, VOUT>2.8V
1500
900
700
10
Dropout Voltage
VDROP
500
440
mV
Line Regulation
Load Regulation
VIN = VOUT + 1V to 6.0V
IOUT = 1mA to 1A
∆VLIR
∆VLOR
PSRR
mV
mV
1
20
Ripple Rejection (Note 2)
Output Noise Voltage
Temperature Coefficient
f=1KHz, Ripple=0.5Vp-p,
CBP = 22nF, f= 10~100KHz
70
24
50
dB
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
AIC1190
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 6.0V
VENH
1.6
Chip Enable High, Output ON,
VIN = 2.3V to 6.0V
Shutdown Input Threshold
V
Chip Enable Low, Output ON,
VIN = 2.3V to 6.0V
VENL
0.4
Chip Enable High, Output OFF,
VIN = 2.3V to 6.0V
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
A
Controls (SQC).
Note 2: Connecting a 22nF bypass capacitor to BP pin can improve AIC1190 PSRR in High frequency.
7
AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS
ꢀ
2.0000
64
V =V +1
IN
OUT
V
=2.0V
1.9975
1.9950
1.9925
1.9900
1.9875
1.9850
OUT
62
60
58
56
54
52
50
I
=90mA
OUT
I
=10mA
V
=2.0V
OUT
OUT
I
=1mA
OUT
V
=3.3V
OUT
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Input Voltage (V)
Fig. 1 Supply Current vs. Input Voltage
Fig. 2 Output Voltage vs. Input Voltage
65
64
V =V +1
V =V +1
64
63
62
61
60
59
58
57
56
55
IN
OUT
IN
OUT
62
60
58
56
54
52
50
48
46
V
=2.0V
V
=2.0V
OUT
OUT
I
=500mA
LOAD
I
=100mA
LOAD
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-40
-20
0
20
40
60
80
)
100 120 140
Supply Voltage (V)
(
Temperature
Fig. 3 Ground Current
Fig. 4 Quiescent Current vs. Temperature
0.4
V =V +1
IN
OUT
V
=2.0V
OUT
0.2
0.0
Input Voltage
-0.2
-0.4
-0.6
Output Voltage
Input Current
-40
-20
0
20
40
60
80
100 120 140
(
)
Temperature
Fig. 5 Output Voltage vs. Temperature
Fig.6 Start-up waveform without bypass capacitance
8
AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
ꢀ
CIN=COUT=2.2µF
CIN=COUT=2.2µF
EN
EN
Output Voltage
Output Voltage
VIN=4.5V, VOUT=3.3V and IOUT= 10mA
VIN=4.5V, VOUT=3.3V and IOUT= 10mA
Fig.7 Shutdown Transient
Fig. 8 Start-up waveform without bypass capacitor
CIN=COUT=2.2µF
CIN=COUT=2.2µF
Input Voltage
Output Voltage Ripple
Output Ripple
Output Current
Output Current
IOUT= 1mA to 1A
V
IN=2.3~3.3V, VOUT=0.8V, I OUT =1000mA
Fig. 9 Line Transient
Fig.10 Load Transient Response at VIN=4.3V, VOUT=3.3V
CIN=COUT=2.2µF
CIN=COUT=2.2µF
Output Voltage Ripple
Output Voltage Ripple
Output Current
Output Current
IOUT= 1mA to 1A
IOUT= 1mA to 1A
Fig.11 Load Transient Response at VIN=2.3V, VOUT=0.8V
Fig.12 Load Transient Response at VIN=3.0V, VOUT=2.0V
9
AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
1.0
ꢀ
0.8
0.6
0.4
0.2
0.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Foldback Current (A)
Fig. 13 Current Fold back (Vout<0.2V)
Fig. 14 PSRR Curve
10
AIC1190
BLOCK DIAGRAM
ꢀ
PIN DESCRIPTION
ꢀ
VIN
– Power supply input pin. Bypass with a 2.2µF capacitor to GND
GND
VOUT
– Ground.
– Regulator Output pin. Sources up to 1A.
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 can connect to external 22nF capacitor to GND to reduce output noise.
The bypass pin could be floating if it’s unnecessary (Keep floating cannot pull low and
pull high).
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.
11
AIC1190
APPLICATION INFORMATION
ꢀ
The AIC1190 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 1A.
voltage noise. The bypass pin can be floating if it’s
unnecessary.
OUTPUT VOLTAGE PROGRAMMING
The output voltage of AIC1190 linear regulator can be
set by its internal feedback resistors when the ADJ pin
is grounded. In addition, the output voltage of AIC1190
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 AIC1190
can be shut down to reduce the supply current to
0.1µA(typ.). At this operation mode, the output voltage
of AIC1190 is equal to 0V.
R
1
VOUT = 0.8× 1+
CURRENT LIMIT
R2
The AIC1190 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 resistive divider should sit as close to ADJ pin as
possible.
POWER DISSIPATION
The maximum power dissipation of AIC1190 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 AIC1190 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.
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output capacitors to
maintain stability. Input capacitor at 2.2µF with a 2.2µF
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.
The power dissipation across the device is
P = IOUT (VIN-VOUT
)
The maximum power dissipation is:
(TJ-max - TA )
P
MAX
=
RθJA
Where TJ-max is the maximum allowable junction
temperature (150°C), and TA is the ambient
temperature suitable in application.
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.
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.
NOISE BYPASS CAPACITOR
A 22nF bypass capacitor at BP pin can reduce output
12
AIC1190
PHYSICAL DIMENSIONS
ꢀ
ꢁ SOT-223 PACKAGE OUTLINE DRAWING
13
AIC1190
ꢁ
TO-252-3L PACKAGE OUTLINE DRAWING
θ
14
AIC1190
ꢁ
TO-252-5L PACKAGE OUTLINE DRAWING
15
AIC1190
ꢁ
TO-263-3L PIN PACKAGE OUTLINE DRAWING
16
AIC1190
ꢁ
TO-263-5L PACKAGE OUTLINE DRAWING
17
AIC1190
ꢁ
TO-220 PACKAGE OUTLINE DRAWING
18
AIC1190
ꢁ
SOP-8 Exposed Pad 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.
19
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