Datasheet

AOZ1334DI-02
Single Channel Smart Load Switch
General Description
Features
The AOZ1334DI-02 is a single channel load switch with
very low on-resistance in a small package. It contains an
n-channel MOSFET for up to 5.5V input voltage
operation and 10A current channel with 5V bias supply.
The load switch is controlled by a low voltage control
signal through ON pin.

0.8V to 5.5V input voltage range

10A continuous current

Low RDS(ON) internal NFETs

60µA low quiescent current
The AOZ1334DI-02 integrates an internal 220Ω load
resistor for quick output discharge when load switch is
off.

0.5ms turn on rise time at VBIAS = 5V and VIN = 1.05V

2.5V to 5.5V bias voltage

Integrated quick output discharge resistor
The AOZ1334DI-02 is available in a 3mm x 3mm DFN-8L
package with bottom thermal pad and is rated over a
-40°C to +85°C ambient temperature range.

Thermally enhanced 3mm x 3mm DFN-8L package
– 3.6mΩ at VBIAS = 5V, VIN = 1.05V
Applications

Portable computers

Ultrabooks

Tablet PCs

Set top boxes

LCD TVs

Telecom/Networking/Datacom
equipment

SSD

Consumer electronics
Typical Application
VIN
VOUT
OUT
IN
CIN
CL
IN
OUT
AOZ1334DI-02
VBIAS
VBIAS
OUT
ON
GND
CBIAS
ON
OFF
Rev. 1.1 January 2016
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Page 1 of 12
AOZ1334DI-02
Ordering Information
Part Number
Temperature Range
Package
Environmental
AOZ1334DI-02
-40°C to +85°C
3mm x 3mm DFN-8L
Green
All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Pin Configuration
IN
1
8
OUT
OUT
8
IN
2
7
OUT
OUT
VBIAS
3
6
OUT
ON
4
5
GND
IN
EPAD
1
IN
7
2
IN
OUT
6
3
VBIAS
GND
5
4
ON
IN
EPAD
3mm x 3mm DFN-8
3mm x 3mm DFN-8
(Top View)
(Bottom View)
Pin Description
Pin Number
Pin Name
1, 2, EPAD
IN
3
VBIAS
Pin Function
Load Switch Input. Bypass capacitor is recommended to minimize input voltage dip.
Recommended voltage range of this pin is 0.8V to 5.5V to obtain optimal RON.
Bias Voltage. Power supply input for the device. Recommended voltage range is 2.5V to
5.5V.
4
ON
5
GND
Ground.
6, 7, 8
OUT
Load switch output.
Rev. 1.1 January 2016
Active High Switch Control Input. Do not leave floating.
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Page 2 of 12
AOZ1334DI-02
Functional Block Diagram
IN
OUT
IN
OUT
Charge
Pump
VBIAS
ON
OUT
Control
Logic
GND
Absolute Maximum Ratings
Recommend Operating Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Parameter
Parameter
Rating
IN, ON, VBIAS, OUT to GND
-0.3V to 6V
Junction Temperature (TJ)
+150°C
Storage Temperature (TS)
-65°C to +150°C
ESD Rating HBM/CDM
2kV/1kV
Rating
Supply Voltage (VIN)
5.5V
Ambient Temperature (TA)
-40°C to +85°C
Package Thermal Resistance
3x3 DFN-8 (ΘJC)
3x3 DFN-8 (ΘJA)
8°C/W
60°C/W
Electrical Characteristics
TA = 25°C, VBIAS = 5V, VIN = 1.05V, unless otherwise specified. Specifications in BOLD indicate a temperature range of
-40°C to +85°C.
Symbol
VIN
VBIAS
ID
IPLS
Iq
IOFF
IINOFF
ION
Parameter
IN Supply Voltage
Conditions
VON = 5V
VBIAS Supply Voltage
Min.
Typ.
Max.
Units
0.8
1.05
5.5
V
2.5
5
5.5
V
Maximum Continuous Current
VON = 5V
10
A
Maximum Pulsed Switch Current
VIN = VON = 5V
Pulse < 300µs, 2% Duty Cycle
12
A
Quiescent Supply Current of VBIAS
IOUT = 0V, VON = 5V
60
µA
VBIAS Shutdown Supply Current
VON = 0V, VOUT = 0V
IN Shutdown Supply Current
VON = 0V, VOUT = 0V
2
µA
ON Leakage Current
VON = 5V
1
µA
VONH
ON High Level Voltage
VONL
ON Low Level Voltage
2
1.2
µA
V
0.5
V
Switching ON Resistance
RON
Switch ON-State Resistance
RPD
Output Pull-Down Resistance
Rev. 1.1 January 2016
IOUT = -6A, VON = 5V, VBIAS = 5V
4.5
5
mΩ
IOUT = -6A, VON = 5V, VBIAS = 3.3V
4.5
5
mΩ
IOUT = 15mA, VON = 0V
220
300
Ω
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Page 3 of 12
AOZ1334DI-02
Switching Characteristics
VON
50%
50% t
OFF
tON
90%
90%
tD-ON
VOUT
50%
50%
10%
1%
tR
10%
tF
Test conditions: TA = 25°C, CIN = 1µF, CL = 0.1µF (unless otherwise specified).
Symbol
Parameter
Min.
Typ.
Max.
Units
VIN = 1.05V, VBIAS = VON = 5V, RL = 10Ω
tON
Turn-ON Time
800
tD-ON
Turn-ON Delay time
350
500
650
tR
Turn-ON Rise Time
350
500
650
tOFF
tF
Turn-OFF Time
2.8
Turn-OFF Fall Time
2.0
µs
VIN = 1.5V, VBIAS = VON = 5V, RL = 10Ω
tON
Turn-ON Time
830
tD-ON
Turn-ON Delay time
336
480
624
tR
Turn-ON Rise Time
420
600
780
tOFF
tF
Turn-OFF Time
2.5
Turn-OFF Fall Time
2.0
µs
VIN = 1.05V, VBIAS = VON = 5V, IOUT = -6A
Turn-ON Time
1140
tD-ON
Turn-ON Delay time
660
tR
Turn-ON Rise Time
700
tON
tOFF
tF
Turn-OFF Time
2.3
Turn-OFF Fall Time
0.5
µs
VIN = 1.5V, VBIAS = VON = 5V, IOUT = -6A
tON
Turn-ON Time
1120
tD-ON
Turn-ON Delay time
630
tR
Turn-ON Rise Time
770
Turn-OFF Time
2.0
Turn-OFF Fall Time
0.5
tOFF
tF
Rev. 1.1 January 2016
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µs
Page 4 of 12
AOZ1334DI-02
Typical Characteristics
Quiescent Current vs. VBIAS
RON vs. VIN
(VIN=VBIAS=VON=5V)
90
(VBIAS=5.5V, IOUT=-6A)
5.0
-40ºC
25ºC
70ºC
85ºC
80
4.5
RSDON (mΩ)
IBIAS (μA)
70
60
4.0
3.5
50
3.0
40
2.5
-40ºC
30
25ºC
70ºC
85ºC
2.0
3.0
3.3
3.5
3.8
4.0
4.3
4.5
VBIAS (V)
4.8
5.0
5.3
0.8
5.5
1.3
1.8
2.3
RON vs. VIN
3.3 3.8
VIN (V)
4.3
4.8
5.3
5.8
VOUT vs. VON
(VBIAS=2.5V, IOUT=-6A)
5.5
2.8
(TA=25ºC, VIN=2V)
2.5
5.0
2.0
VOUT (V)
RDSON (mΩ)
4.5
4.0
3.5
1.5
1.0
3.0
VBIAS = 2.5V
-40ºC
0.5
VBIAS = 3.3V
VBIAS = 5.0V
VBIAS = 5.5V
25ºC
70ºC
85ºC
2.5
2.0
0
0.8
1.1
Rev. 1.1 January 2016
1.4
1.7
VIN (V)
2.0
2.3
2.6
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0.5
0.7
0.9
VON (V)
1.1
1.3
Page 5 of 12
AOZ1334DI-02
Typical Characteristics (Continued)
tON vs. VIN
tD-ON vs. VIN
(VBIAS=2.5V)
1900
(VBIAS=5.5V)
700
1800
600
1700
500
tD-ON (μs)
tON (μs)
1600
1500
1400
400
300
1300
1200
-40ºC
1100
25ºC
70ºC
85ºC
-40ºC
25ºC
70ºC
85ºC
200
100
1000
0.8
1.0
1.2
1.4
1.6
1.8
VIN (V)
2.0
2.2
2.4
0.8
2.6
1.2
1.6
2.0
2.4
tON vs. VIN
3.2 3.6 4.0
VIN (V)
4.4
4.8
5.2 5.6
tR vs. VIN
(VBIAS=5.5V)
1100
2.8
(VBIAS=2.5V)
2500
1050
2000
1000
900
tR (μs)
tON (μs)
950
850
1500
1000
800
750
-40ºC
-40ºC
700
500
25ºC
70ºC
85ºC
650
25ºC
70ºC
85ºC
0
600
0.8
1.2
1.6
2.0
2.4
1200
2.8 3.2 3.6 4.0
VIN (V)
4.4
4.8
0.8
5.2 5.6
1.0
1.2
1.4
1.6
1.8
VIN (V)
tD-ON vs. VIN
tR vs. VIN
(VBIAS=2.5V)
(VBIAS=5.5V)
1200
2.0
2.2
2.4
2.6
1100
1000
1000
900
tR (μs)
tD-ON (μs)
800
600
800
700
400
200
-40ºC
600
-40ºC
25ºC
70ºC
85ºC
500
25ºC
70ºC
85ºC
400
0
0.8
1.0
1.2
Rev. 1.1 January 2016
1.4
1.6
1.8
VIN (V)
2.0
2.2
2.4
2.6
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0.8
1.2
1.6
2.0
2.4
2.8
3.2 3.6 4.0
VIN (V)
4.4
4.8
5.2 5.6
Page 6 of 12
AOZ1334DI-02
Typical Characteristics (Continued)
tOFF vs. VIN
tOFF vs. VIN
(VBIAS=2.5V)
5.5
(VBIAS=5.5V)
4.5
-40ºC
5.0
-40ºC
25ºC
70ºC
85ºC
4.5
25ºC
70ºC
80ºC
4.0
tOFF (μs)
tOFF (μs)
3.5
4.0
3.5
3.0
2.5
3.0
2.0
2.5
1.5
2.0
0.8
1.0
1.2
1.4
1.6
1.8
VIN (V)
2.0
2.2
2.4
0.8
2.6
1.2
1.6
2.0
2.4
tF vs. VIN
4.4
4.8
5.2 5.6
tF vs. VIN
(VBIAS=2.5V)
5.0
2.8 3.2 3.6 4.0
VIN (V)
(VBIAS=5.5V)
5.0
4.5
-40ºC
4.0
25ºC
70ºC
85ºC
4.5
-40ºC
4.0
25ºC
70ºC
85ºC
3.5
3.5
tF (μs)
tF (μs)
3.0
3.0
2.5
2.5
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0
0
0.8
1.0
1.2
Rev. 1.1 January 2016
1.4
1.6
1.8
VIN (V)
2.0
2.2
2.4
2.6
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0.8
1.2
1.6
2.0
2.4
2.8 3.2 3.6 4.0
VIN (V)
4.4
4.8
5.2 5.6
Page 7 of 12
AOZ1334DI-02
Functional Characteristics
Turn-ON & Turn-ON Rise Times
Turn-ON & Turn-ON Rise Times
(VINX=1.5V, VBIAS=5V, CIN=1μF, CL=0.1μF, RL=10Ω)
(VINX=1.05V, VBIAS=5V, CIN=1μF, CL=0.1μF, RL=10Ω)
VON
(5V/div)
VON
(5V/div)
VOUT
(200mV/div)
VOUT
(200mV/div)
Turn-OFF & Turn-OFF Fall Times
Turn-OFF & Turn-OFF Fall Times
(VINX=1.5V, VBIAS=5V, CIN=1μF, CL=0.1μF, RL=10Ω)
(VINX=1.05V, VBIAS=5V, CIN=1μF, CL=0.1μF, RL=10Ω)
VON
(5V/div)
VON
(5V/div)
VOUT
(200mV/div)
Turn-ON & Turn-OFF at IOUT=-6A
Turn-ON & Turn-OFF at IOUT=-6A
(VINX=1.5V, VBIAS=5V, CIN=1μF, CL=0.1μF)
(VINX=1.05V, VBIAS=5V, CIN=1μF, CL=0.1μF)
Rev. 1.1 January 2016
VOUT
(200mV/div)
VON
(5V/div)
VON
(5V/div)
VOUT
(500mV/div)
VOUT
(500mV/div)
IOUT
(2A/div)
IOUT
(2A/div)
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Page 8 of 12
AOZ1334DI-02
Detailed Description
Applications Information
ON/OFF Control
The basic AOZ1334DI-02 application circuit is shown in
the first page. Component selection is explained below.
The AOZ1334DI-02 is enabled when the ON pin is on
active high with 1.2V or above voltage. The device is
disabled when the ON pin voltage is 0.5V or lower. The
EN input is compatible with both TTL and CMOS logic.
VBIAS Voltage Range
For optimal on-resistance of load switch, make sure the
voltage is within 2.5V to 5.5V. On-resistance of load
switch will be higher if the condition is not satisfied.
Resistance curves of a typical sample device at
VBIAS = VIN and at different output currents are shown as
below.
4.3
RDSON (mΩ)
4.1
VBIAS = 2.5V
VBIAS = 3.3V
VBIAS = 5.0V
VBIAS = 5.5V
3.9
Output Capacitor
A capacitor of 10μF or higher value is recommended to
be place between the OUT pins and GND. The capacitance does not affect the turn-on slew rate. However, a
larger capacitor makes the initial turn-on transient
smoother.
Thermal Considerations
To ensure proper operation, the maximum junction
temperature of the AOZ1334DI-02 should not exceed
150°C. Several factors attribute to the junction temperate
rise: load current, MOSFET on-resistance, junction-toambient thermal resistance, and ambient temperature.
The maximum load current can be determined by:
4.2
4.0
Input Capacitor
A capacitor of 10μF or higher value is recommended to
be place close to the IN pins of AOZ1334DI-02. This
capacitor can reduce the voltage drop caused by the
in-rush current during the turn-on transient of the load
switch. A higher value capacitor can be used to further
reduce the voltage drop during high-current application.
TA = 25ºC
3.8
I LOAD ( MAX ) =
3.7
T J ( MAX ) – T C
--------------------------------------Θ JC × R DS ( ON )
3.6
1
2
3
4
5
6
7
8
9
10
It is noted that the maximum continuous load current is
10A. Exceeding the maximum continuous load current may
cause permanent damage to the device.
IOUT (A)
5.3
5.2
Layout Guidelines
RDSON (mΩ)
5.2
Good PCB is important for improving the thermal performance of AOZ1334DI-02. Place the input and output
bypass capacitors close to the IN and OUT pins. The
input and output PCB traces should be as wide as possible for the given PCB space. Use a ground plane to
enhance the power dissipation capability of the device.
5.0
4.9
VBIAS = 2.5V
VBIAS = 3.3V
4.8
VBIAS = 5.0V
VBIAS = 5.5V
4.7
TA = 85ºC
4.6
4.5
4.4
4.3
1
2
3
4
5
6
7
8
9
10
IOUT (A)
Rev. 1.1 January 2016
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Page 9 of 12
AOZ1334DI-02
Package Dimensions, DFN3x3_8L, EP1_S
b1
D
8x
bbb
8
e
b
C A B
8
aaa C 2x
L
E
E1
L
1
1
aaa C 2x
D1
TOP VIEW
Pin1
Identification
BOTTOM VIEW
ccc C
A1
Seating
Plane
A
ddd C
SIDE VIEW
C
RECOMMENDED LAND PATTERN
Symbols Min.
1.60
0.40
0.30
0.30
0.65
1.30
2.60
1.60
Dimensions in millimeters
2.40
UNIT: mm
A
A1
b1
b
c
D
D1
E
E1
e
L
R
aaa
bbb
ccc
ddd
0.70
0.00
1.55
0.25
--2.90
2.35
2.90
1.50
Nom.
0.75
0.02
1.60
0.30
0.203
3.00
2.40
3.00
1.60
0.65 BSC
0.35
0.40
0.20
0.15
0.10
0.10
0.08
Max.
0.80
0.05
1.65
0.35
--3.10
2.45
3.10
1.70
0.45
Dimensions in inches
Symbols Min.
A
A1
b1
b
c
D
D1
E
E1
e
L
R
aaa
bbb
ccc
ddd
Nom.
Max.
0.028
0.000
0.061
0.010
--0.114
0.093
0.114
0.059
0.030 0.031
0.001 0.002
0.063 0.065
0.012 0.014
0.008
--0.118 0.122
0.094 0.096
0.118 0.122
0.063 0.067
0.026 BSC
0.014 0.016 0.018
0.008
0.006
0.004
0.004
0.003
Notes:
1. Dimensions and tolerances conform to ASME Y14.5M-1994.
2. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
3. Dimension b applies to metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. If the terminal
has the optional radius on the other end of the terminal, dimension b should not be measured in that radius area.
4. Coplanarity ddd applies to the terminals and all other bottom surface metallization.
Rev. 1.1 January 2016
www.aosmd.com
Page 10 of 12
AOZ1334DI-02
Tape and Reel Dimensions, DFN3x3_8L, EP1_S
Carrier Tape
D0
P1
A–A
D1
A
E1
K0
E2
E
B0
A
P2
T
P0
A0
Feeding Direction
UNIT: mm
Package
A0
DFN 3x3_EP
B0
3.40 3.35
±0.10 ±0.10
D0
K0
1.50
1.10
±0.10 +0.10/-0.0
D1
E
E1
E2
P0
P1
P2
T
1.50
+0.10/-0.0
12.00
±0.30
1.75
±0.10
5.50
±0.05
8.00
±0.10
4.00
±0.10
2.00
±0.05
0.30
±0.05
Reel
W1
N
S
G
K
M
V
R
H
W
UNIT: mm
Tape Size Reel Size
M
N
12mm
ø330
ø330.00 ø97.00
±0.50
±0.10
W1
H
K
S
W
13.00 17.40 ø13.00 10.60 2.00
±0.50
±0.30 ±1.00 +0.5/-0.2
G
N/A
R
N/A
V
N/A
Leader / Trailer & Orientation
Unit Per Reel:
5000pcs
Trailer Tape
300mm Min.
Rev. 1.1 January 2016
Components Tape
Orientation in Pocket
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Leader Tape
500mm Min.
Page 11 of 12
AOZ1334DI-02
Package Marking
AOZ1334DI-02
(DFN3x3-8)
1334
Part Number Code
XOAW
Extension Code
LT
Option Code
Year & Week Code
Assembly Lot Code
Assembly Location Code
LEGAL DISCLAIMER
Alpha and Omega Semiconductor makes no representations or warranties with respect to the accuracy or
completeness of the information provided herein and takes no liabilities for the consequences of use of such
information or any product described herein. Alpha and Omega Semiconductor reserves the right to make changes
to such information at any time without further notice. This document does not constitute the grant of any intellectual
property rights or representation of non-infringement of any third party’s intellectual property rights.
LIFE SUPPORT POLICY
ALPHA AND OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL
COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body or (b) support or sustain life, and (c) 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 of
the user.
Rev. 1.1 January 2016
2. A critical component in any component of a life
support, device, or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
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Page 12 of 12