DATA SHEET
AAT3215
150mA CMOS High Performance LDO
General Description
The AAT3215 MicroPower™ low dropout (LDO) linear
regulator is ideally suited for portable applications where
low noise, extended battery life, and small size are criti-
cal. The AAT3215 has been specifically designed for very
low output noise performance, fast transient response,
and high power supply rejection ratio (PSRR), making it
ideal for powering sensitive RF circuits.
Other features include low quiescent current, typically
95μA, and low dropout voltage which is typically less
than 140mV at full output current. The device is output
short-circuit protected and has a thermal shutdown cir-
cuit for additional protection under extreme conditions.
The AAT3215 also features a low-power shutdown mode
for extended battery life. A reference bypass pin has
been provided to improve PSRR performance and output
noise by connecting an external capacitor from the
AAT3215’s reference output to ground.
The AAT3215 is available in a Pb-free, space-saving
5-pin SOT23 package in six factory-programmed volt-
ages: 2.6V, 2.85V, 3.0V, 3.1V, 3.3V, or 3.6V.
Features
•
•
•
•
•
Low Dropout: 140mV at 150mA
Guaranteed 150mA Output
High Accuracy ±1.5%
95μA Quiescent Current
High Power Supply Ripple Rejection
▪
70dB at 1kHz
▪
50dB at 10kHz
Very Low Self Noise: 45μVrms
Fast Line and Load Transient Response
Short-Circuit Protection
Over-Temperature Protection
Uses Low Equivalent Series Resistance (ESR) Ceramic
Capacitors
Noise Reduction Bypass Capacitor
Shutdown Mode for Longer Battery Life
Low Temperature Coefficient
Six Factory-Programmed Output Voltages
SOT23 5-Pin Package
•
•
•
•
•
•
•
•
•
•
Applications
•
•
•
•
•
•
Bluetooth™ Headsets
Cellular Phones
Digital Cameras
Notebook Computers
Personal Portable Electronics
Portable Communication Devices
Typical Application
V
IN
IN
OUT
V
OUT
AAT3215
ON/OFF
EN
GND
1μF
10nF
2.2μF
BYP
GND
GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202408B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 25, 2013
1
DATA SHEET
AAT3215
150mA CMOS High Performance LDO
Pin Descriptions
Pin Number
1
2
3
4
5
Symbol
IN
GND
EN
BYP
OUT
Function
Input voltage pin; should be decoupled with 1μF or greater capacitor.
Ground connection pin.
Enable pin. When pulled low, the PMOS pass transistor turns off and all internal
circuitry enters low-power mode, consuming less than 1μA. This pin should not
be left
fl
oating.
Bypass capacitor connection. To improve AC ripple rejection, connect a 10nF
capacitor to GND. This will also provide a soft-start function.
Output pin; should be decoupled with 2.2μF capacitor.
Pin Configuration
SOT23-5
(Top View)
IN
GND
EN
1
5
OUT
2
3
4
BYP
2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202408B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 25, 2013
DATA SHEET
AAT3215
150mA CMOS High Performance LDO
Absolute Maximum Ratings
1
T
A
= 25°C, unless otherwise noted.
Symbol
V
IN
V
ENIN(MAX)
I
OUT
T
J
Description
Input Voltage
Maximum EN to Input Voltage
DC Output Current
Operating Junction Temperature Range
Value
6
0.3
P
D
/(V
IN
-V
O
)
-40 to 150
Units
V
mA
°C
Thermal Information
2
Symbol
θ
JA
P
D
Description
Maximum Thermal Resistance
Maximum Power Dissipation
Rating
190
526
Units
°C/W
mW
Recommended Operating Conditions
Symbol
V
IN
T
Description
Input Voltage
Ambient Temperature Range
Rating
(V
OUT
+ 0.3) to 5.5
-40 to +85
Units
V
°C
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied.
2. Mounted on a demo board.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202408B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 25, 2013
3
DATA SHEET
AAT3215
150mA CMOS High Performance LDO
Electrical Characteristics
V
IN
= V
OUT(NOM)
+ 1V, I
OUT
= 1mA, C
OUT
= 2.2μF, C
IN
= 1μF, C
BYP
= 10nF, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are T
A
= 25°C.
Symbol
V
OUT
I
OUT
V
DO
I
SC
I
Q
I
SD
V
OUT
/
V
OUT
*V
IN
V
OUT
(line)
V
OUT
(load)
V
EN(L)
V
EN(H)
I
EN
PSRR
T
SD
T
HYS
e
N
T
C
Description
Output Voltage Tolerance
Output Current
Dropout Voltage
1
Short-Circuit Current
Ground Current
Shutdown Current
Line Regulation
Dynamic Line Regulation
Dynamic Load Regulation
Enable Threshold Low
Enable Threshold High
Leakage Current on Enable Pin
Power Supply Rejection Ratio
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Conditions
I
OUT
= 1mA to 150mA
V
OUT
> 1.2V
I
OUT
= 150mA
V
OUT
< 0.4V
V
IN
= 5V, No Load, EN = V
IN
V
IN
= 5V, EN = 0V
V
IN
= V
OUT
+ 1 to 5.5V
V
IN
= V
OUT
+ 1V to V
OUT
+ 2V, I
OUT
= 150mA,
T
R
/T
F
= 2μs
I
OUT
= 1mA to 150mA, T
R
< 5μs
T
A
= 25°C
T
A
= -40 to 85°C
Min
-1.5
-2.5
150
Typ
Max
1.5
2.5
Units
%
mA
mV
mA
μA
%/V
mV
140
600
95
250
150
1
0.07
1
30
0.6
1.5
V
μA
dB
V
EN
= 5V
I
OUT
= 10mA, C
BYP
= 10nF
1kHz
10kHz
1MHz
70
50
47
150
1
°C
10
45
22
μVrms
ppm/°C
1. V
DO
is defined as V
IN
- V
OUT
when V
OUT
is 98% of nominal.
4
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202408B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 25, 2013
DATA SHEET
AAT3215
150mA CMOS High Performance LDO
Typical Characteristics
Unless otherwise noted, V
IN
= 5V, T
A
= 25°C.
Dropout Voltage vs. Temperature
200
3.1
Dropout Characteristics
I
OUT
= 10mA
I
OUT
= 0mA
I
OUT
= 150mA
2.9
Dropout Voltage (mV)
160
140
120
100
80
60
40
20
0
-40
-20
I
L
= 150mA
I
L
= 100mA
I
L
= 50mA
Output Voltage (V)
180
3.0
I
OUT
= 100mA
2.8
I
OUT
= 50mA
2.9
3.0
3.1
3.2
3.3
2.7
0
20
40
60
80
100
120
Temperature (°C)
°
Input Voltage (V)
Ground Current vs. Input Voltage
Dropout Voltage vs. Output Current
120
Ground Current (μA)
μ
200
V
OUT
= 3.0V
100
80
60
40
20
0
2
3
4
5
Dropout Voltage (mV)
180
160
140
120
100
80
60
40
20
0
0
50
100
150
I
OUT
= 0
I
OUT
= 5mA
I
OUT
= 150mA
Input Voltage (V)
Output Current (mA)
Ground Current vs. Temperature
(V
OUT
= 3.0V)
105
3.014
Output Voltage vs. Temperature
Ground Current (μA)
Output Voltage (V)
0
50
100
150
100
95
90
85
80
-50
3.013
3.012
3.011
3.01
3.009
3.008
3.007
-50
0
50
100
150
Temperature (°C)
Temperature
(°C)
°
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202408B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 25, 2013
5
Talking
京公网安备 11010802033920号
EEWORLD
