DATA SHEET
AAT3221/AAT3222: 150 mA Nanopower
TM
LDO Linear
Regulator
Applications
•
Cellular phones
•
Digital
cameras
•
Handheld electronics
•
Notebook
computers
•
PDAs
•
Portable
communication
devices
•
Remote
controls
Description
The AAT3221 and AAT3222 NanoPower™
Low Drop Out
(LDO)
linear regulators are ideal for portable applications where
extended battery life is critical. These devices feature extremely
low quiescent current, typically 1.1
µA.
Dropout voltage is also
very low, typically less than 200 mV at the maximum output
current of 150 mA. The AAT3221/3222 have an enable pin which,
when asserted, places the LDO regulator into shutdown mode,
removing power from its load and offering extended power
conservation capabilities for portable battery-powered
applications.
The AAT3221/3222 have output short-circuit and over-current
protection. In addition, the devices also have an over-temperature
protection circuit that shuts down the LDO regulator during
extended over-current events. Both devices are available with
active high or active low enable input.
The AAT3221 and AAT3222 are available in Pb-free, space-saving
5-pin
SOT23 packages. The AAT3221 is also available in a
Pb-free, 8-pin SC70JW package. Since only a small, 1
µF
ceramic output capacitor is recommended, often the only space
used is that occupied by the AAT3221 or AAT3222. The
AAT3221/3222 provide a compact and cost-effective voltage
conversion solution.
Both devices are similar to the AAT3220, with the exception that
they offer further power savings with an enable pin.
A typical application circuit
is
shown in Figure 1. The pin
configuration
is
shown in Figures
2,
3, and 4. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Features
•
Quiescent
current:
1.1
µA
•
Low
dropout: 200 mV (typical)
•
Guaranteed
output:
150 mA
•
High accuracy: ±2%
•
Current
limit
protection
•
Over-temperature protection
•
Extremely
low
power
shutdown
mode
•
Low temperature coefficient
•
Factory-programmed
output
voltages: 1.5 V to 3.5 V
•
Stable
operation with
virtually any
output capacitor type
•
Active high or
low
enable pin
•
Small,
5-pin
SOT23 or 8-pin SC70JW (AAT3221 only) package
(MSL1, 260 °C per JEDEC-J-STD-020)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202251B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2013
1
DATA SHEET • AAT3221/AAT3222 150 mA NANOPOWER
TM
LDO LINEAR REGULATOR
Figure 1. AAT3221/3222 Typical Application Circuit
Figure 2. AAT3221 Pinout
5-Pin SOT23-5 (Top View)
Figure 3. AAT3221 Pinout
8-Pin SC70JW-8 (Top View)
Figure 4. AAT3222 Pinout
5-Pin SOT23-5 (Top View)
Table 1. AAT3221/3222 Signal Descriptions
Pin #
AAT3221
SOT23-5
1
2
3
4
5
SC70JW-8
2
5, 6, 7, 8
4
3
1
AAT3222
2
1
5
4
3
Name
IN
GND
EN(EN)
NC
OUT
Input pin.
Ground connection pin.
Enable input. Logic compatible enable with active high or active low option
available; see Ordering Information and Applications Information for details.
Not connected.
Output pin; should be decoupled with 1
µF
or greater capacitor.
Description
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
May 17, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202251B
DATA SHEET • AAT3221/AAT3222 150 mA NANOPOWER
TM
LDO LINEAR REGULATOR
Electrical and Mechanical Specifications
The absolute maximum ratings of the AAT3221/3222 are provided
in Table 2.
The recommended operating conditions are specified in Table 3,
and electrical specifications are provided in Table 4.
Table 2. AAT3221/3222 Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage, <30 ms, 10% DC (continuous max. = 6.0 V)
EN(EN) to GND Voltage
Maximum EN(EN) to Input Voltage
Maximum DC Output Current
Operating Junction Temperature Range
Thermal
Resistance
(Note
2)
Power Dissipation (Note 2)
Electrostatic Discharge:
Human Body Model, Class 3A
V
IN
V
EN
V
ENIN
(
MAX
)
I
OUT
T
J
θ
JA
P
D
ESD
Symbol
Typical performance characteristics of the AAT3221/3222 are
illustrated in Figures 5 through 22.
Minimum
–0.3
–0.3
Typical
Maximum
+7
+6
Units
V
V
V
mA
0.3
P
D
/(V
IN
–
V
O
)
–40
SOT23-5
SC70JW-8
SOT23-5
SC70JW-8
150
160
667
625
4000
+150
ºC
ºC/W
ºC/W
mW
mW
V
Note 1:
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed may result in permanent damage to the device.
Note 2:
Support IN high voltage pulse up to 7 V lasting 8
µs.
CAUTION:
Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 3. AAT3221/3222 Recommended Operating Conditions
Parameter
Input voltage (Note 1)
Ambient temperature range
Symbol
V
IN
T
A
Minimum
(V
OUT
+
V
DO
)
–40
Typical
Maximum
5.5
+85
Units
V
°C
Note 1:
To calculate minimum input voltage, use the following equation: V
IN
(
MIN
) = V
OUT
(
MAX
) + V
DO
(
MAX
) as long as V
IN
≥ 2.5 V.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202251B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2013
3
DATA SHEET • AAT3221/AAT3222 150 mA NANOPOWER
TM
LDO LINEAR REGULATOR
Table 4. AAT3221/3222 Electrical Specifications (1 of 2) (Note 1)
(V
IN
= V
OUT
(
NOM
) + 1 V, I
OUT
= 1 mA, C
OUT
= 1
µF,
T
A
= 25 °C, Unless Otherwise Noted)
Parameter
DC
output
voltage
tolerance
Output
current
Short-circuit
current
Ground
current
Shutdown
current
Line
regulation
V
OUT
I
OUT
I
SC
I
Q
I
SD
∆Vout/Vout
Х
∆Vin
V
OUT
> 1.2 V
V
OUT
< 0.4 V
V
IN
= 5 V, no load
EN =
inactive
V
IN
= 4.0 V
to 5.5
V
V
OUT
= 1.5
V
OUT
= 1.6
V
OUT
= 1.7
V
OUT
= 1.8
V
OUT
= 1.9
V
OUT
= 2.0
V
OUT
= 2.3
V
OUT
= 2.4
Load
regulation
∆V
OUT
/V
OUT
I
OUT
= 1 to 100 mA
V
OUT
=
2.5
V
OUT
= 2.6
V
OUT
= 2.7
V
OUT
= 2.8
V
OUT
= 2.85
V
OUT
= 2.9
V
OUT
= 3.0
V
OUT
= 3.1
V
OUT
= 3.3
V
OUT
= 3.5
V
OUT
= 2.3
V
OUT
= 2.4
V
OUT
=
2.5
V
OUT
= 2.6
V
OUT
= 2.7
Dropout voltage (Note 2, 3)
V
DO
I
OUT
= 100 mA
V
OUT
= 2.8
V
OUT
= 2.85
V
OUT
= 2.9
V
OUT
= 3.0
V
OUT
= 3.1
V
OUT
= 3.3
V
OUT
= 3.5
Symbol
Test Condition
Min
–2.0
150
350
1.1
20
0.15
1.3
1.2
1.1
1.0
1.0
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.5
0.5
230
220
210
205
200
190
190
190
190
188
180
180
0.4
1.72
1.69
1.67
1.65
1.62
1.58
1.45
1.40
1.35
1.30
1.25
1.20
1.20
1.18
1.15
1.06
1.00
1.00
275
265
255
247
240
235
230
228
225
222
220
220
mV
%
2.5
Typical
Max
+2.0
Units
%
mA
mA
µA
nA
%/V
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
May 17, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202251B
DATA SHEET • AAT3221/AAT3222 150 mA NANOPOWER
TM
LDO LINEAR REGULATOR
Table 4. AAT3221/3222 Electrical Specifications (2 of 2) (Note 1)
(V
IN
= V
OUT
(
NOM
) + 1 V, I
OUT
= 1 mA, C
OUT
= 1
µF,
T
A
= 25 °C, Unless Otherwise Noted)
Parameter
EN Input
low
voltage
EN Input high voltage
EN Input
leakage
Power
supply rejection ratio
Over-temperature
shutdown threshold
Over-temperature
shutdown
hysteresis
Output
noise
Output voltage
temperature coefficient
V
EN
(
L
)
V
EN
(
H
)
I
EN
(
SINK
)
PSRR
T
SD
T
HYS
e
N
T
C
f = 10
Hz to
10
kHz
V
IN
= 2.7 V to 3.6 V
V
IN
= 5 V
V
ON
= 5.5 V
@ 100
H
Z
2.0
2.4
0.01
50
140
20
350
80
1
Symbol
Test Condition
Min
Typical
Max
0.8
Units
V
V
µA
dB
ºC
ºC
µV
RMS
PPM/°C
Note 1:
Performance is guaranteed only under the conditions listed in this Table.
Note 2:
V
DO
is defined as V
IN
-
V
OUT
when V
OUT
is 98% of nominal.
Note 3:
For V
OUT
< 2.3 V, V
DO
=
2.5
V
–
V
OUT
.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202251B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2013
5