202230A.pdf

DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
General Description
Features
The AAT4280A SmartSwitch is a member of Skyworks'
Application Specific Power MOSFET (ASPM™) product
family. The AAT4280A is a P-channel MOSFET power
switch designed for high-side load switching applications.
The device has a typical RDS(ON) of 80mW, allowing
increased load switch power handling capacity. 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 AAT4280A (-1) version has a slew
rate limited turn-on load switch and is functionally compatible with the AAT4250 device, while offering superior
RDS(ON) characteristics. The AAT4280A (-2) version features fast load switch turn-on capabilities, typically less
than 500ns turn-on and 3µs turn-off times. The AAT4280A
(-3) variation offers a shutdown load discharge circuit to
rapidly turn off a load circuit when the switch is disabled.
The AAT4280A (-4) version features the slowest load
switch turn-on capability, typically greater than 4.0ms
turn-on time. All AAT4280A load switch versions operate
with an input voltage ranging from 1.5V to 5.5V, making
them ideal for both 3V and 5V systems. Input logic levels
are TTL and 2.5V to 5V CMOS compatible. The quiescent
supply current is very low, typically 25nA.
• 1.5V to 5.5V Input Voltage Range
• Very Low RDS(ON), Typically 80mW (5V)
• Slew Rate Limited Turn-On Time Options
▪4.5ms
▪1ms
▪0.5µs
▪100µs
• Fast Shutdown Load Discharge Option
• Low Quiescent Current
▪ 25nA (typ)
• TTL/CMOS Input Logic Level
• Temperature Range: -40ºC to +85°C
• 3kV ESD Rating
• SC70JW-8, SOT23-6, and WLCSP-5 Packages
The AAT4280A is available in the Pb-free 8-pin SC70JW,
6-pin SOT23, and WLCSP-5 packages and is specified
over the -40°C to +85°C temperature range.
Applications
•
•
•
•
•
•
•
Cellular Telephones
Digital Still Cameras
Hot Swap Supplies
LCD Panels
Notebook Computers
Personal Communication Devices
Personal Digital Assistants (PDAs)
Typical Application
V IN
IN
IN
C IN
1µF
GND
ON
OUT
V OUT
AAT4280A
ON/OFF
GND
GND
C OUT
0.1µF
GND
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1
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Pin Descriptions
Pin #
SC70JW-8
SOT23-6
WLSCP-5
Symbol
1, 5, 6, 7, 8
4, 6
1, 4
IN
2
1
5
OUT
3
4
3
5
2
3
ON/OFF
GND
Function
This pin is the input to the P-channel MOSFET source. Bypass to ground
through a 1.0µF capacitor.
This pin is the P-channel MOSFET drain connection. Bypass to ground
through a 0.1µF capacitor.
Enable input.
Ground connection.
Pin Configuration
SC70JW-8
(Top View)
IN
OUT
ON/OFF
GND
2
1
8
2
7
3
6
4
5
IN
IN
IN
IN
SOT23-6
(Top View)
OUT
1
6
IN
GND
IN
IN
GND
2
5
GND
ON/OFF
3
4
IN
WLCSP-5
(Top View)
1
2
ON/OFF
5
OUT
3
4
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Selector Guide
Part Number
Slew Rate (typ)
AAT4280A-1
AAT4280A-2
AAT4280A-3
AAT4280A-4
1ms
0.5µs
100µs
4.5ms
Active Pull Down
Enable
Active
Active
Active
Active


High
High
High
High
Absolute Maximum Ratings1
TA = 25°C, unless otherwise noted.
Symbol
Description
VIN
VON
VOUT
IMAX
IN to GND
ON/OFF to GND
OUT to GND
Maximum Continuous Switch Current
IDM
Maximum Pulsed Current
TJ
TS
TLEAD
VESD
IN ≥ 2.5V
IN < 2.5V
Operating Junction Temperature Range
Storage Temperature Range
Maximum Soldering Temperature (at leads)
ESD Rating2 - HBM
Value
Units
-0.3 to 6
-0.3 to 6
-0.3 to VIN + 0.3
2.3
6
3
-40 to 150
-65 to 150
300
3000
V
V
V
A
A
A
°C
°C
°C
V
Thermal Characteristics
Symbol
Description
Package
Value
SC70JW-8
SOT23-63,5
WLCSP-53,6
SC70JW-8
SOT23-6
WLCSP-5
714
833
352
140
120
284
3,4
PD
Maximum Power Dissipation
θJA
Thermal Resistance
Units
mW
°C/W
1.Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at condition other than the operating conditions
specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
3. Mounted on an FR4 board; for the WLCSP package, use the NSMD (non-solder mask defined) pad style for tighter control on the copper etch process.
4. Derate 7.14mW/°C above 25°C.
5. Derate 8.33mW/°C above 25°C.
6. Derate 3.52mW/°C above 25°C.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202230A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 31, 2012
3
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Electrical Characteristics
Unless otherwise noted, VIN = 5V, TA = -40°C to +85°C; typical values are TA = 25°C.
Symbol
Description
AAT4280A All Versions
VIN
Operation Voltage
IQ
Quiescent Current
IQ(off)
Off Supply Current
ISD(off)
Off Switch Current
RDS(on)
On Resistance
TCRDS
VIL
On Resistance Temperature Coefficient
ON/OFF Input Logic Low Voltage
VIH
ON/OFF Input Logic High Voltage
ISINK
ON/OFF Input Leakage
AAT4280A-1
TD(ON)
Output Turn-On Delay
TON
Output Turn-On Rise Time
TD(OFF)
Output Turn-Off Delay Time
AAT4280A-2
TD(ON)
Output Turn-On Delay
TON
Output Turn-On Rise Time
TD(OFF)
Output Turn-Off Delay Time
AAT4280A-3
TD(ON)
Output Turn-On Delay
TON
Output Turn-On Rise Time
TD(OFF)
Output Turn-Off Delay Time
RPD
Output Pull-Down Resistance During OFF
AAT4280A-4
TD(ON)
Output Turn-On Delay Time
TON
Output Turn-On Rise Time
TD(OFF)
Output Turn-OFF Delay Time
RPD
Output Pull-Down Resistance During OFF
Conditions
Min
Typ
1.5
ON/OFF = Active
ON/OFF = Inactive, OUT = Open
ON/OFF = Inactive, VOUT = 0
VIN = 5V, TA = 25°C
VIN = 4.2V, TA = 25°C
VIN = 3V, TA = 25°C
VIN = 1.8V, TA = 25°C
VIN = 1.5V, TA = 25°C
VIN = 1.5V to 5.5V1
VIN = 1.5V to 2.7V
VIN = 2.7V to 3.3V
VIN = 3.3V to 4.2V
VIN = 4.2V to 5.5V
VON/OFF = 5.5V
80
85
100
160
200
2800
Max
Units
5.5
1
1
1
120
130
150
250
300
V
µA
µA
µA
0.4
1.4
1.5
1.6
2.4
ppm/°C
V
V
1
µA
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
20
1000
4
40
1500
10
µs
µs
µs
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
0.5
0.5
4
2
1
10
µs
µs
µs
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
VIN = 5V, RLOAD = 10W, TA = 25°C
ON/OFF = Inactive, TA = 25°C
20
100
4
150
40
150
10
250
µs
µs
µs
W
20
4500
4
150
40
µs
µs
µs
W
VIN = 3.3V, RLOAD = 10W, TA = 25°C
VIN = 3.3V, RLOAD = 10W, TA = 25°C
VIN = 3.3V, RLOAD = 10W, TA =25°C
ON/OFF = Inactive, TA = 25°C
2000
10
250
1. For VIN outside this range, consult typical ON/OFF threshold curve.
4
mW
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Quiescent Current vs. Temperature
RDS(ON) vs. Input Voltage
270
250
2A
230
40
RDS(ON) (mΩ)
Quiescent Current (nA)
50
30
20
10
210
190
1A
500mA
170
150
130
110
90
100mA
70
1.5 1.8 2.0 2.3 2.5 2.8 3.0 3.3 3.5 3.8 4.0 4.3 4.5 4.8 5.0 5.3 5.5
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Input Voltage (V)
ON/OFF Threshold vs. Input Voltage
RDS(ON) vs. Temperature
2.2
ON/OFF Threshold (V)
120
RDS(ON) (mΩ)
110
VIN = 3V
100
90
80
VIN = 5V
70
60
50
2.0
1.8
1.6
1.4
VIH
1.2
1.0
0.8
VIL
0.6
0.4
1.4
40
-40
-20
0
20
40
60
80
100
Temperature (°C)
1.9
2.4
2.9
3.4
3.9
4.4
4
5.4
Input Voltage (V)
Off-Switch Current (µA)
Off-Switch Current vs. Temperature
1.000
0.100
0.010
0.001
-40
-20
0
20
40
Temperature (°C)
60
80
100
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Typical Characteristics—AAT4280A-1
Unless otherwise noted, VIN = 5V, TA = 25°C.
AAT4280A-1 Turn-On
AAT4280A-1 Turn-On
(VIN = 3V; RL = 6Ω)
(VIN = 5V; RL = 10Ω)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
Time (500µs/div)
IIN (200mA/div)
Time (500µs/div)
AAT4280A-1 Turn-Off
AAT4280A-1 Turn-Off
(VIN = 3V; RL = 6Ω)
(VIN = 5V; RL = 10Ω)
Time (10µs/div)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
IIN (200mA/div)
Time (10µs/div)
6
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Typical Characteristics—AAT4280A-2
Unless otherwise noted, VIN = 5V, TA = 25°C.
AAT4280A-2 Turn-On
AAT4280A-2 Turn-On
(VIN = 3V; RIN = 6Ω)
(VIN = 5V; RL = 10Ω)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
IIN (200mA/div)
Time (5µs/div)
Time (5µs/div)
AAT4280A-2 Turn-Off
AAT4280A-2 Turn-Off
(VIN = 3V; RL = 6Ω)
(VIN = 5V; RL = 10Ω)
Time (5µs/div)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
IIN (200mA/div)
Time (5µs/div)
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Typical Characteristics—AAT4280A-3
Unless otherwise noted, VIN = 5V, TA = 25°C.
AAT4280A-3 Turn-On
AAT4280A-3 Turn-On
(VIN = 3V; RL = 6Ω)
(VIN = 5V; RL = 10Ω)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
Time (50µs/div)
IIN (200mA/div)
Time (50µs/div)
AAT4280A-3 Turn-Off
AAT4280A-3 Turn-Off
(VIN = 3V; RL = 6Ω)
(VIN = 5V; RL = 10Ω)
ON/OFF (5V/div)
ON/OFF (5V/div)
VOUT (2V/div)
VOUT (2V/div)
IIN (200mA/div)
IIN (200mA/div)
Time (5µs/div)
Time (5µs/div)
8
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Typical Characteristics—AAT4280A-4
Unless otherwise noted, VIN = 5V, TA = 25°C.
AAT4280A-4 Turn-On
AAT4280A-4 Turn-On
(VIN = 3V; RL = 10Ω)
(VIN = 5V; RL = 10Ω)
EN (2V/div)
VOUT (2V/div)
EN (5V/div)
IIN (200mA/div)
VOUT (5V/div)
IIN (500mA/div)
Time (2ms/div)
AAT4280A-4 Turn-Off
AAT4280A-4 Turn-Off
(VIN = 3.3V; RL = 10W)
Time (10µs/div)
Time (2ms/div)
(VIN = 5V; RL = 10Ω)
EN (2V/div)
EN (5V/div)
VOUT (2V/div)
VOUT (5V/div)
IIN (200mA/div)
IIN (500mA/div)
Time (10µs/div)
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9
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Functional Block Diagram
IN
OUT
Turn-On
Slew Rate
Control
Level
Shift
*
ON/OFF
GND
*AAT4280A-3 and -4 only
Functional Description
The AAT4280A is a family of flexible P-channel MOSFET
power switches designed for high-side load switching
applications. There are three versions of the AAT4280A
with different turn-on and turn-off characteristics to
choose from, depending upon the specific requirements
of an application. The first version, the AAT4280A-1, has
a moderate turn-on slew rate feature, which reduces
inrush 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,
10
the gate is quickly increased to the full input voltage and
RDS(ON) is minimized.
The second version, the AAT4280A-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 third switch version, the AAT4280A-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.
The final switch version, the AAT4280A-4, features a very
slow turn-on slew rate with a typical value of 4.5ms for
LCD panel applications.
All versions of the AAT4280A operate with input voltages
ranging from 1.5V to 5.5V. 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 AAT4280A an ideal
level-shifting load switch.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Applications Information
Input Capacitor
A 1µF or larger capacitor is typically recommended for
CIN in most applications. A CIN capacitor is not required
for basic operation; however, CIN 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 ESR requirement for CIN; however, for
higher current operation, 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
between VOUT and GND is recommended. The output
capacitor has no specific capacitor type or ESR requirement. If desired, COUT may be increased without limit to
accommodate any load transient condition without
adversely affecting the device turn-on slew rate time.
Enable Function
The AAT4280A features an enable / disable function. This
pin (ON/OFF) is compatible with both TTL or CMOS logic.
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 the VOUT
pin and possibly damage 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.
Thermal Considerations and
High Output Current Applications
The AAT4280A 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
need to 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 Layout
Considerations section of this datasheet.
At any given ambient temperature (TA), the maximum
package power dissipation can be determined by the following equation:
PD(MAX) =
[TJ(MAX) - TA]
θJA
Constants for the AAT4280A are maximum junction temperature, TJ(MAX) = 125°C, and package thermal resistance, θJA = 120°C/W. Worst case conditions are calculated at the maximum operating temperature where TA =
85°C. Typical conditions are calculated under normal
ambient conditions where TA = 25°C. At TA = 85°C, PD(MAX)
= 333mW. At TA = 25°C, PD(MAX) = 833mW.
The maximum continuous output current for the
AAT4280A 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,
MAX RDS125°C = RDS25°C · (1 + TC · DT)
MAX RDS125°C = 120mW · (1 + 0.0028 ·
(125°C - 25°C)) = 154mW
For maximum current, refer to the following equation:
IOUT(MAX) <
PD(MAX)
RDS
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
For example, if VIN = 5V, RDS(MAX) = 154mW and TA =
25°C, IOUT(MAX) = 2.3A. If the output load current were to
exceed 2.3A 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 AAT4280A.
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.
High Peak Output Current Applications
Some applications require the load switch to operate at
a continuous nominal current level with short duration,
high-current peaks. 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 in the additional power
dissipation due to the short duration, high-current peak
scaled by the duty factor.
For example, a 4V system using an AAT4280A 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.
First, the current duty cycle is calculated:
% Peak Duty Cycle: X/100 = 576µs/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 calculated approximately by consulting the chart of RDS(ON) vs. VIN. The RDS reported for 5V
can be scaled by the ratio seen in the chart to derive the
RDS for a 4V VIN: 120mW · 87mW /80mW = 130mW.
De-rated for temperature: 130mW · (1 + 0.0028 · (125°C
- 25°C)) = 166mW. The power dissipation for a 100mA
load is calculated as follows:
PD(MAX) = IOUT2 · RDS
PD(100mA) = (100mA)2 · 166mW
PD(100mA) = 1.66mW
PD(87.5%D/C) = %DC · PD(100mA)
PD(87.5%D/C) = 0.875 · 1.66mW
PD(87.5%D/C) = 1.45mW
The power dissipation for 100mA load at 87.5% duty
cycle is 1.45mW. Now the power dissipation for the
remaining 12.5% of the duty cycle at 2A is calculated:
PD(MAX) = IOUT2 · RDS
PD(2A) = (2A)2 · 166mW
PD(2A) = 664mW
PD(12.5%D/C) = %DC · PD(2A)
PD(12.5%D/C) = 0.125 · 664mW
PD(12.5%D/C) = 83mW
The power dissipation for 2A load at 12.5% duty cycle is
83mW. 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) = 1.45mW + 83mW
PD(total) = 84.5mW
The maximum power dissipation for the AAT4280A operating at an ambient temperature of 85°C is 333mW. The
device in this example will have a total power dissipation
of 84.5mW. This is well within the thermal limits for safe
operation of the device; in fact, at 85°C, the AAT4280A
will handle a 2A pulse for up to 50% 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 AAT4280A, 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. To maximize package
thermal dispation and power handling capacity of the
AAT4280A SC70JW-8 package, the ground plane area
connected to the ground pins should be made as large
as possible. For best performance, CIN and COUT should
be placed close to the package pins.
Evaluation Board Layout
The AAT4280A evaluation layout follows the printed circuit board layout recommendations and can be used for
good applications layout. Refer to Figures 1 through 3.
Note: Board layout shown is not to scale.
12
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Figure 1: AAT4280A SC70JW-8 Package Evaluation Board Component Side Layout.
Figure 2: AAT4280A SC70JW-8 Package
Evaluation Board Solder Side Layout.
VOUT
1
VIN
2
IN
IN
OUT
IN
8
7
AAT4280A
C1
1µF
EN
3
4
ON/OFF
IN
GND
IN
6
C2
0.1µF
5
Figure 3: AAT4280A SC70JW-8 Package Evaluation Board Schematic.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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13
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Figure 4: AAT4280A SOT23-6 Package Evaluation Board Component Side Layout.
4
VIN
C1
1µF
5
6
Figure 5: AAT4280A SOT23-6 Package
Evaluation Board Solder Side Layout.
IN
ON/OFF
AAT4280A
GND
GND
IN
OUT
3
EN
2
1
VOUT
C2
0.1µF
Figure 6: AAT4280A SOT23-6 Package Evaluation Board Schematic.
14
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Figure 7: AAT4280A WLCSP-5 Package Evaluation Board Component Side Layout.
IN
VIN
Figure 8: AAT4280A WLCSP-5 Package
Evaluation Board Solder Side Layout.
2
1
C1
1µF
4
EN
GND
3
IN
ON/OFF
5
AAT4280A
OUT
VOUT
C2
0.1µF
Figure 9: AAT4280A WLCSP-5 Package Evaluation Board Schematic.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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15
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
Ordering Information
Device Option
Package
Marking1
Part Number (Tape and Reel)2
AAT4280A-1
AAT4280A-2
AAT4280A-3
AAT4280A-4
AAT4280A-4
AAT4280A-3
SC70JW-8
SC70JW-8
SC70JW-8
SC70JW-8
SOT23-6
WLCSP-5
NDXYY
NEXYY
NFXYY
3EXYY
3LXYY
4PYW3
AAT4280AIJS-1-T1
AAT4280AIJS-2-T1
AAT4280AIJS-3-T1
AAT4280AIJS-4-T1
AAT4280AIGU-4-T1
AAT4280AIUV-3-T1
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
Package Information
SC70JW-8
2.20 ± 0.20
1.75 ± 0.10
0.50 BSC 0.50 BSC 0.50 BSC
0.225 ± 0.075
2.00 ± 0.20
0.100
7° ± 3°
0.45 ± 0.10
4° ± 4°
0.05 ± 0.05
0.15 ± 0.05
1.10 MAX
0.85 ± 0.15
0.048REF
2.10 ± 0.30
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held for part numbers listed in BOLD.
3. YW = year code + week code.
16
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DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
SOT23-6
2.85 ± 0.15
1.90 BSC
2.80 ± 0.20
0.15 ± 0.07
4° ± 4°
1.10 ± 0.20
1.20 ± 0.25
0.075 ± 0.075
1.575 ± 0.125
0.95 BSC
10° ± 5°
0.40 ± 0.10 × 6
0.60 REF
0.45 ± 0.15
GAUGE PLANE
0.10 BSC
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a
service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no
responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR
PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES
NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM
THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper
use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product
design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for
identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202230A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 31, 2012
17
DATA SHEET
AAT4280A
Slew Rate Controlled Load Switch
WLSCP-5
0.725 ± 0.025
0.400 BSC
0.100
0.337 ± 0.025
0.120 ± 0.018
Line_2
0.250
0.050
0.945 ± 0.025
B
00
0.4
SC
60°
0.693 BSC
Line_1
ø 0.1 (Ref.)
Pin 1 indication
Bottom View
Top View
Side View
0.457 ± 0.043
0.190 ± 0.029
End View
All dimensions in millimeters.
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a
service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no
responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR
PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES
NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM
THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper
use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product
design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for
identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
18
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202230A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 31, 2012