Analogic AAT4252A Dual slew rate controlled load switch Datasheet

AAT4252A
Dual Slew Rate Controlled Load Switch
General Description
Features
The AAT4252A SmartSwitch™ is a dual P-channel
MOSFET power switch designed for high-side loadswitching applications. Each MOSFET has a typical
RDS(ON) of 105mΩ, allowing increased load switch
current handling capacity with a low forward voltage
drop. The device is available in three different versions with flexible turn-on and turn-off characteristics–from very fast to slew-rate limited. The standard
4252A (-1) version has a slew-rate limited turn-on
load switch. The AAT4252A (-2) version features a
fast turn-on capabilities, typically less than 500ns
turn-on and 3µs turn-off times. The AAT4252A (-3)
variation offers a shutdown load discharge circuit to
rapidly turn-off a load circuit when the switch is disabled. An additional feature is a slew-rate selector pin
which can switch between fast and slow slew rate.
•
•
All the AAT4252A load switch versions are designed
to operate from 1.5V up to 6.5V, making then ideal
for both 3V and 5V systems. Input logic levels are
TTL and 2.5V to 5V CMOS compatible. The quiescent supply current is a very low 500nA.
Applications
•
•
•
•
•
•
•
•
•
•
•
•
•
The AAT4252A is available in the Pb-free TSOPJW12 package and is specified over the -40°C to
+85°C temperature range.
SmartSwitch™
VIN Range: 1.5V to 6.5V
Low RDS(ON)
— 87mΩ Typical @ 5V
— 196mΩ Typical @ 1.5V
Slew Rate Turn-On Time Options
— 1ms
— 0.5µs
— 100µs
Fast Shutdown Load Discharge Option
Low Quiescent Current
— Typically 500nA
TTL/CMOS Input Logic Level
Temperature Range: -40ºC to +85°C
Available in TSOPJW-12 package
Cellular Telephones
Digital Still Cameras
Notebook Computers
PDA Phones
PDAs
PMPs
Smartphones
Typical Application
INA
2
INA
OUTA
12
OUTA
INB
5
INB
OUTB
7
OUTB
3
ENA
ON/OFF
C1
1μF
C2
1μF
ON/OFF
FAST/SLOW
4
1
AAT4252A
C3
0.1μF
C4
0.1μF
ENB
FAST
GND
N/C
6
8,9,10,11
4252A.2007.06.1.0
1
AAT4252A
Dual Slew Rate Controlled Load Switch
Pin Descriptions
Pin #
Symbol
1
2
FAST
INA
3
ENA
4
ENB
5
INB
6
7
N/C
OUTB
8, 9, 10, 11
12
GND
OUTA
Function
Active-high input switches between FAST (Logic H) and SLOW (Logic L) slew rate.
This is the pin to the P-channel MOSFET source for Switch A. Bypass to ground
through a 1µF capacitor. INA is independent of INB.
Active-High Enable Input A. A logic low turns the switch off and the device consumes
less than 1µA of current. Logic high resumes normal operation.
Active-High Enable Input B. A logic low turns the switch off and the device consumes
less than 1µA of current. Logic high resumes normal operation.
This is the pin to the P-channel MOSFET source for Switch B. Bypass to ground
through a 1µF capacitor. INB is independent of INA.
Not connected.
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through
a 0.1µF capacitor.
Ground connection.
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through
a 0.1µF capacitor.
Pin Configuration
TSOPJW-12
(Top View)
FAST
INA
ENA
ENB
INB
N/C
2
1
12
2
11
3
10
4
9
5
8
6
7
OUTA
GND
GND
GND
GND
OUTB
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
Selector Guide
Part Number
Slew Rate (Typ)
FAST (H)
SLOW (L)
Active
Pull-Down
Enable
1ms
0.5µs
NO
NO
YES
Active High
Active High
Active High
1
AAT4252A-1
AAT4252A-21
AAT4252A-3
100µs
1ms
Absolute Maximum Ratings2
Symbol
VIN
VEN, FAST
VOUT
IMAX
IDM
TJ
TLEAD
VESD
Description
IN to GND
EN, FAST to GND
OUT to GND
Maximum Continuous Switch Current
IN ≥ 2.5V
Maximum Pulsed Current
IN ≤ 2.5V
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads)
ESD Rating3 - HBM
Value
Units
-0.3 to 7
-0.3 to 7
-0.3 to VIN + 0.3
1.8
5.5
2.0
-40 to 150
300
4000
V
V
V
A
°C
°C
V
Value
Units
160
625
°C/W
mW
A
Thermal Characteristics4
Symbol
θJA
PD
Description
Thermal Resistance
Maximum Power Dissipation
1. Contact Sales for product availability
2. 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. Only one Absolute Maximum Rating should be applied at any one time.
3. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
4. Mounted on an AAT4252A demo board in still 25°C air.
4252A.2007.06.1.0
3
AAT4252A
Dual Slew Rate Controlled Load Switch
Electrical Characteristics1
VIN = 5V, TA = -40°C to +85°C unless otherwise noted. Typical values are at TA = 25°C. Per channel.
Symbol
Description
Conditions
Min
AAT4252A All Versions
VIN
Operation Voltage
IQ
Quiescent Current
IQ(OFF)
ISD(OFF)
Off Supply Current
Off Switch Current2
RDS(ON)
TCRRDS
VIL
VIH
ISINK
AAT4252A-12
TD(ON)
TON
TD(OFF)
AAT4252A-22
TD(ON)
TON
TD(OFF)
AAT4252A-3
TD(ON)
On-Resistance
87
92
103
145
196
2800
Max
Units
6.5
V
1.0
µA
1.0
1.0
155
µA
µA
mΩ
1.0
ppm/°C
V
V
µA
0.4
1.4
Output Turn-On Delay Time
Turn-On Rise Time
Output Turn-OFF Delay Time
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
10
600
2.0
40
1500
10
µs
µs
µs
Output Turn-On Delay Time
Turn-On Rise Time
Output Turn-OFF Delay Time
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
VIN = 5V, RLOAD =10Ω, TA =25°C
0.5
0.5
4.0
2
1.0
10
µs
µs
µs
Output Turn-On Delay Time
VIN = 5V, RLOAD
VIN = 5V, RLOAD
TA =25°C
VIN = 5V, RLOAD
TA =25°C
VIN = 5V, RLOAD
10
40
µs
65
150
µs
600
1500
µs
2.0
10
µs
10
50
Ω
Turn-On Rise Time
TON
Turn-On Rise Time
RPD
1.5
ON/OFF = ACTIVE, FAST = VIN,
IOUT = 0
ON/OFF = Inactive, OUT = Open
ON/OFF = GND, VOUT = 0
VIN = 5V
VIN = 4.2V
VIN = 3.0V
VIN = 1.8V
VIN = 1.5V
On Resistance Temp Co
ON/OFF Input Logic Low Voltage VIN = 1.5V to 5.5V
ON/OFF Input Logic High Voltage VIN = 1.5V to 5.5V
ON/OFF Input Leakage
VON/OFF = 5.5V
TON
TD(OFF)
Typ
Output Turn-OFF Delay Time
Output Pull-Down Resistance
During OFF
=10Ω, TA =25°C
=10Ω, FAST = 5V,
=10Ω, FAST = 0V,
=10 , TA =25°C
ON/OFF = Inactive, TA =25°C
1. The AAT4252A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is
assured by design, characterization, and correlation with statistical process controls.
2. Contact Sales for product availability.
4
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25°C unless otherwise noted.
Quiescent Current vs. Temperature
Quiescent Current vs. Input Voltage
(No Load; Single Switch)
(No Load; Single Switch)
0.7
Quiescent Current (µ
µA)
Quiescent Current (µ
µA)
5
4.5
4
3.5
3
2.5
VIN = 5V
2
1.5
VIN = 3V
1
0.5
0
-40
-15
10
35
60
0.6
0.5
0.4
0.3
0.2
0.1
0
85
0
1
2
Temperature (°C)
3
4
5
6
Input Voltage (V)
Typical ON/OFF Threshold vs. Input Voltage
Off Supply Current vs. Temperature
(No Load; EN = GND; VIN = 5V)
1.3
8
ON/OFF Threshold (V)
Off Supply Current (µA)
9
7
6
5
4
3
2
1
0
-40
-15
10
35
60
1.2
VIL
1
0.9
0.8
0.7
0.6
1.5
85
VIH
1.1
2
2.5
On-Resistance vs. Temperature
On-Resistance (mΩ
Ω)
On-Resistance (mΩ
Ω)
4.5
5
5.5
250
120
VIN = 3V
100
80
VIN = 5V
60
40
20
-15
10
35
Temperature (°C)
4252A.2007.06.1.0
4
On-Resistance vs. Input Voltage
140
-40
3.5
Input Voltage (V)
Temperature (°C)
0
3
60
85
230
210
190
170
ISW = 2A
150
130
110
90
70
50
1.5
ISW = 100mA
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
5
AAT4252A
Dual Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25°C unless otherwise noted.
Output Turn-On
Output Turn-On
6
4
2
0
Switch A
4
2
0
(VINA/VINB/VEN = 5V; RL = 10Ω
Ω)
Enable Voltage (top) (V)
Output Voltage (bottom) (V)
Enable Voltage (top) (V)
Output Voltage (bottom) (V)
(VINA/VENA = 5V; VINB/VENB = 3V; RLA = 10Ω
Ω; RLB = 20Ω)
Switch B
6
4
2
Switch A
0
4
2
Switch B
0
Time (500µs/div)
Time (500µs/div)
Output Turn-On
Output Turn-On
0.7
5
0.6
0.5
4
0.4
3
0.3
2
0.2
1
0.1
0
0
3.5
2
1
0
-1
Time (500µs/div)
6
0.1
1
0.5
0.05
0
0
Time (500µs/div)
Output Turn-Off
(VIN = 5V; RL = 10Ω
Ω)
Enable Voltage (top) (V)
Output Voltage (middle) (V)
Enable Voltage (top) (V)
Output Voltage FAST (middle) (V)
Output Voltage SLOW (bottom) (V)
3
0.15
6
0.7
5
0.6
0.5
4
0.4
3
0.3
2
0.2
1
0.1
0
0
Input Current (bottom) (A)
4
0.2
2
(RL = 10Ω
Ω)
5
0.25
1.5
Output Turn-On
6
0.3
3
2.5
Time (500µs/div)
7
0.35
Input Current (bottom) (A)
6
Enable Voltage (top) (V)
Output Voltage (middle) (V)
(VIN = 3V; RL = 20Ω
Ω)
Input Current (bottom) (A)
Enable Voltage (top) (V)
Output Voltage (middle) (V)
(VIN = 5V; RL = 10Ω
Ω)
Time (5µs/div)
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
Typical Characteristics
VIN = 5V, TA = 25°C unless otherwise noted.
Output Turn-Off
3.5
0.35
3
0.3
2.5
0.25
2
0.2
0.15
1.5
1
0.1
0.5
0.05
0
0
Input Current (bottom) (A)
Enable Voltage (top) (V)
Output Voltage (middle) (V)
(VIN = 3V; RL = 20Ω
Ω)
Time (5µs/div)
4252A.2007.06.1.0
7
AAT4252A
Dual Slew Rate Controlled Load Switch
Functional Block Diagram
OUTA
INA
Turn-On Slew
Rate Control
Level
Shift
*
ENA
FAST
OUTB
INB
Turn-On Slew
Rate Control
Level
Shift
*
ENB
GND
*AAT4252A-3 version only
8
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
Functional Description
Applications Information
The AAT4252A is a family of flexible dual P-channel MOSFET power switches designed for highside load switching applications. There are three
versions of the AAT4252A with different turn-on
and turn-off characteristics to choose from,
depending upon the specific requirements of an
application.
Input Capacitor
The first version, the AAT4252A-1, has a moderate
turn-on slew rate feature, which reduces in-rush
current when the MOSFET is turned on. This function allows the load switch to be implemented with
either a small input capacitor or no input capacitor
at all. During turn-on slewing, the current ramps
linearly until it reaches the level required for the
output load condition. The proprietary turn-on current control method works by careful control and
monitoring of the MOSFET gate voltage. When the
device is switched ON, the gate voltage is quickly
increased to the threshold level of the MOSFET.
Once at this level, the current begins to slew as the
gate voltage is slowly increased until the MOSFET
becomes fully enhanced. Once it has reached this
point the gate is quickly increased to the full input
voltage and the RDS(ON) is minimized.
The second version, the AAT4252A-2, is a very
fast switch intended for high-speed switching
applications. This version has no turn-on slew rate
control and no special output discharge features.
The final switch version, the AAT4252A-3, has the
addition of a minimized slew rate limited turn-on
function and a shutdown output discharge circuit to
rapidly turn off a load when the load switch is disabled through the ON/OFF pin. Using the FAST
input pin on the AAT4252A-3, the device can be
manually switched to a slower slew rate.
All versions of the AAT4252A operate with input
voltages ranging from 1.5V to 6.5V. All versions of
this device have extremely low operating current,
making them ideal for battery-powered applications.
The ON/OFF control pin is TTL compatible and will
also function with 2.5V to 5V logic systems, making the AAT4252A an ideal level-shifting load
switch.
4252A.2007.06.1.0
A 1μF or larger capacitor is typically recommended
for CIN in most applications. A CIN capacitor is not
required for basic operation; however, it is useful in
preventing load transients from affecting upstream
circuits. CIN should be located as close to the
device VIN pin as practically possible. Ceramic,
tantalum, or aluminum electrolytic capacitors may
be selected for CIN. There is no specific capacitor
equivalent series resistance (ESR) requirement for
CIN. However, for higher current CIN, ceramic
capacitors are recommended for CIN due to their
inherent capability over tantalum capacitors to withstand input current surges from low-impedance
sources, such as batteries in portable devices.
Output Capacitor
For proper slew operation, a 0.1μF capacitor or
greater is required between VOUT and GND.
Likewise, with the output capacitor, there is no specific capacitor ESR requirement. If desired, COUT
may be increased without limit to accommodate
any load transient condition without adversely
affecting the slew rate.
Enable Function
The AAT4252A features an enable / disable function. This pin (ON) is active high and is compatible
with TTL or CMOS logic. To assure the load switch
will turn on, the ON control level must be greater
than 2.0V. The load switch will go into shutdown
mode when the voltage on the ON pin falls below
0.8V. When the load switch is in shutdown mode,
the OUT pin is tri-stated, and quiescent current
drops to leakage levels below 1μA.
Reverse Output-to-Input Voltage
Conditions and Protection
Under normal operating conditions, a parasitic
diode exists between the output and input of the
load switch. The input voltage should always remain
greater than the output load voltage, maintaining a
reverse bias on the internal parasitic diode.
Conditions where VOUT might exceed VIN should be
avoided since this would forward bias the internal
parasitic diode and allow excessive current flow into
9
AAT4252A
Dual Slew Rate Controlled Load Switch
the VOUT pin, possibly damaging the load switch. In
applications where there is a possibility of VOUT
exceeding VIN for brief periods of time during normal operation, the use of a larger value CIN capacitor is highly recommended. A larger value of CIN
with respect to COUT will effect a slower CIN decay
rate during shutdown, thus preventing VOUT from
exceeding VIN. In applications where there is a
greater danger of VOUT exceeding VIN for extended
periods of time, it is recommended to place a
Schottky diode from VIN to VOUT (connecting the
cathode to VIN and anode to VOUT). The Schottky
diode forward voltage should be less than 0.45V.
The maximum continuous output current for the
AAT4252A is a function of the package power dissipation and the RDS of the MOSFET at TJ(MAX). The
maximum RDS of the MOSFET at TJ(MAX) is calculated by increasing the maximum room temperature RDS by the RDS temperature coefficient. The
temperature coefficient (TC) is 2800ppm/°C.
Therefore, at 125°C:
RDS(MAX) = RDS(25°C) · (1 + TC ⋅ ΔT)
RDS(MAX) = 155mΩ · (1 + 0.002800 · (125°C - 25°C))
RDS(MAX) = 198mΩ
For maximum current, refer to the following equation:
Thermal Considerations and High
Output Current Applications
The AAT4252A is designed to deliver a continuous
output load current. The limiting characteristic for
maximum safe operating output load current is
package power dissipation. In order to obtain high
operating currents, careful device layout and circuit
operating conditions must be taken into account.
The following discussions will assume the load
switch is mounted on a printed circuit board utilizing
the minimum recommended footprint as stated in
the Printed Circuit Board Layout Recommendations
section of this datasheet.
At any given ambient temperature (TA), the maximum package power dissipation can be determined by the following equation:
IOUT(MAX) <
PD(MAX)
RDS
For example, if VIN = 5V, RDS(MAX) = 198mΩ, and TA
= 25°C, IOUT(MAX) = 1.8A. If the output load current
were to exceed 1.8A or if the ambient temperature
were to increase, the internal die temperature would
increase and the device would be damaged. Higher
peak currents can be obtained with the AAT4252A.
To accomplish this, the device thermal resistance
must be reduced by increasing the heat sink area or
by operating the load switch in a duty cycle manner.
Duty cycles with peaks less than 2ms in duration
can be considered using the method below.
High Peak Output Current Applications
TJ(MAX) - TA
PD(MAX) =
θJA
Constants for the AAT4252A are maximum junction
temperature (TJ(MAX) = 125°C1) and package thermal resistance (θJA = 160°C/W). Worst case conditions are calculated at the maximum operating temperature, TA = 85°C. Typical conditions are calculated under normal ambient conditions where TA =
25°C. At TA = 85°C, PD(MAX) = 250mW. At TA =
25°C, PD(MAX) = 625mW.
Some applications require the load switch to operate
at a continuous nominal current level with short duration, high-current peaks. Refer to the IDM specification in the Absolute Maximum Ratings table to
ensure the AAT4252A’s maximum pulsed current rating is not exceeded. The duty cycle for both output
current levels must be taken into account. To do so,
first calculate the power dissipation at the nominal
continuous current level, and then add the additional
power dissipation due to the short duration, high-current peak scaled by the duty factor. For example, a
4V system using an AAT4252A operates at a continuous 100mA load current level and has short 2A current peaks, as in a GSM application. The current
peak occurs for 576μs out of a 4.61ms period.
1. The actual maximum junction temperature of AAT4252A is 150°C. However,good design practice is to derate the maximum die temperature down to 125°C to prevent the possibility of over temperature damage.
10
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
First, the current duty cycle is calculated:
⎛ x ⎞ ⎛ 576μs ⎞
% Peak Duty Cycle = ⎝
100⎠ = ⎝ 4.61ms⎠
% Peak Duty Cycle = 12.5%
The load current is 100mA for 87.5% of the 4.61ms
period and 2A for 12.5% of the period. Since the
Electrical Characteristics do not report RDS(MAX) for
4V operation, it must be approximated by consulting the chart of RDS(ON) vs. VIN. The RDS reported
for 5V at 100mA and 2A can be scaled by the ratio
seen in the chart to derive the RDS for 4V VIN at
25°C : 155mΩ · 90mΩ/87mΩ = 160.3mΩ. De-rated
for temperature: 160.3mΩ · (1 + 0.002800 x (125°C
-25°C)) = 205mΩ. The power dissipation for a
100mA load is calculated as follows:
PD(MAX) = IOUT2 · RDS
PD(100mA) = (100mA)2 · 205mΩ
PD(100mA) = 2.05mW
PD(87.5%D/C) = %DC · PD(100mA)
PD(87.5%D/C) = 0.875 · 2.05mW
PD(87.5%D/C) = 1.8mW
The power dissipation for 100mA load at 87.5%
duty cycle is 1.97mW. Now the power dissipation
for the remaining 12.5% of the duty cycle at 2A is
calculated:
The power dissipation for 2A load at 12.5% duty
cycle is 102.6mW. Finally, the two power figures
are summed to determine the total true power dissipation under the varied load.
PD(total) = PD(100mA) + PD(2A)
PD(total) = 1.8mW + 102.6mW
PD(total) = 104.4mW
The maximum power dissipation for the AAT4252A
operating at an ambient temperature of 85°C is
250mW. The device in this example will have a
total power dissipation of 104.4mW. This is well
within the thermal limits for safe operation of the
device; in fact, at 85°C, the AAT4252A will handle
a 2A pulse for up to 30% duty cycle. At lower ambient temperatures, the duty cycle can be further
increased.
Printed Circuit Board Layout
Recommendations
For proper thermal management, and to take
advantage of the low RDS(ON) of the AAT4252A, a
few circuit board layout rules should be followed:
VIN and VOUT should be routed using wider than
normal traces, and GND should be connected to a
ground plane. For best performance, CIN and COUT
should be placed close to the package pins.
Evaluation Board Layout
PD(2A) = (2A)2 · 205mΩ
The AAT4252A evaluation layout follows the printed circuit board layout recommendations and can
be used for good applications layout. Refer to
Figures 1 and 2.
PD(2A) = 820.97mW
Note: Board layout shown is not to scale.
PD(MAX) = IOUT2 · RDS
PD(12.5%D/C) = %DC · PD(2A)
PD(12.5%D/C) = 0.125 · 820.97mW
PD(12.5%D/C) = 102.6mW
4252A.2007.06.1.0
11
AAT4252A
Dual Slew Rate Controlled Load Switch
Figure 1: Evaluation Board Top Side Layout.
12
Figure 2: Evaluation Board Bottom Side Layout.
4252A.2007.06.1.0
AAT4252A
Dual Slew Rate Controlled Load Switch
Ordering Information
Device Option
Package
Marking1
Part Number (Tape and Reel)2
AAT4252A-3
TSOPJW-12
WSXYY
AAT4252AITP-3-T1
All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means
semiconductor products that are in compliance with current RoHS standards, including
the requirement that lead not exceed 0.1% by weight in homogeneous materials. For more
information, please visit our website at http://www.analogictech.com/pbfree.
Package Information
TSOPJW-12
2.85 ± 0.20
2.40 ± 0.10
0.10
0.20 +- 0.05
0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC
7° NOM
0.04 REF
0.055 ± 0.045
0.15 ± 0.05
+ 0.10
1.00 - 0.065
0.9625 ± 0.0375
3.00 ± 0.10
4° ± 4°
0.45 ± 0.15
0.010
2.75 ± 0.25
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held on part numbers listed in BOLD.
4252A.2007.06.1.0
13
AAT4252A
Dual Slew Rate Controlled Load Switch
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AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work
rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Except as provided in AnalogicTech’s terms and conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent,
copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the
customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty.
Specific testing of all parameters of each device is not necessarily performed. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated.
All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders.
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085
Phone (408) 737- 4600
Fax (408) 737- 4611
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