AOZ1360
28V Programmable Current-Limited Load Switch
Preliminary DATASHEET
(Specifications subject to change)
General Description
The AOZ1360 is a member of Alpha and Omega
Semiconductor’s high-side load switch family
intended for applications that require circuit
protection. The device operates from voltages
between 5.5V and 28V, and can handle a
continuous current up to 3A. The internal current
limiting circuit protects the input supply voltage from
large load current. The current limit can be set with
an external resistor. The AOZ1360 provides thermal
protection function that limits excessive power
dissipation. The device employs internal soft-start
circuitry to control inrush current due to highly
capacitive loads associated with hot-plug events. It
features low quiescent current of 220µA and the
supply current reduces to less than 1µA in
shutdown.
The AOZ1360 is available in the SO-8 & 4x4DFN-
10 package which can operate over -40°C to +85°C
temperature range.
Features
35mΩ maximum on resistance
2A minimum continuous current.
Programmable current limit
5.5V to 28V operating input voltage
Low quiescent current
Under-voltage lockout
Thermal shutdown protection
2.5kV ESD rating
Available in SO-8 and 4mm x4mm DFN-10
package
Applications
Notebook PCs
Hot swap supplies
Typical Application Circuit
AOZ1360 Preliminary Data Sheet Rev0
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Alpha and Omega Semiconductor Confidential
Alpha & Omega Semiconductor
AOZ1360
Ordering Information
Part Number
AOZ1360AI
AOZ1360DI
Package
SO-8
DFN4x4 10L
Temperature Range
-40°C to +85°C
-40°C to +85°C
Environmental
RoHS
RoHS
Pin Configuration
TOP VIEW
IN
1
IN
2
GND
3
SS
4
SO-8
8
7
6
5
TOP VIEW
OUT
OUT
SET
EN
IN
IN
NC
1
2
3
10
OUT
OUT
NC
SET
EN
OUT
9
8
GND
4
SS
5
GND
7
6
DFN4X4 10L
Note: Connect all IN pins externally.
Pin Description
SO-8
Pin Number
1,2
3
4
5
6
DFN4x4 10L
Pin Number
1,2
4
5
6
7
3,8
9,10
Pin
Name
IN
GND
SS
EN
SET
NC
OUT
Pin Function
P-channel MOSFET source. Connect a 1uF capacitor from IN to
GND.
Ground.
Soft-Start Pin. Connect a capacitor from SS to GND to set the soft-start
time. Connect SS to IN to set to the default soft-start time of 100us.
Enable Input. Two options are available: active high and active low. See
Ordering Information for details.
Current Limit Set Pin. Connect a resistor from SET to GND to set the
switch current limit.
No Connect
P-channel MOSFET Drain. Connect a 0.1uF capacitor from OUT to GND.
7,8
AOZ1360 Preliminary Data Sheet Rev0
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Alpha and Omega Semiconductor Confidential
Alpha & Omega Semiconductor
AOZ1360
Absolute Maximum Ratings
(1)
IN to GND ..........................................-0.3V to +30V
EN, SET, OUT to GND..............-0.3V to V
IN
+ 0.3V
SS, SET…………………………….…..-0.3V to +6V
Maximum Continuous Current............................ 3A
Maximum Junction Temperature (T
J
)..........+150°C
ESD Rating (HBM) ........................................2.5kV
Operating Ratings
Thermal Resistance (SO-8) ........................82°C/W
Thermal Resistance (DFN4X4)...................63°C/W
Electrical Characteristics
V
IN
= 12V, T
A
= -40°C to +85°C unless otherwise stated. Typical values are at 25°C
Parameter
Input Supply Voltage
Undervoltage Lockout
Threshold
Undervoltage Lockout
Hysteresis
Input Quiescent Current
Input Shutdown Current
Output Leakage Current
Switch On Resistance
Switch On Resistance
Current Limit
Enable Input Low Voltage
Enable Input High Voltage
Enable Input Hysteresis
Enable Input Bias Current
Turn-On Delay Time
EN_50% to OUT_10%
Turn-On Rise Time
OUT_10% to 90%
Turn-Off Fall Time
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
Symbol
V
IN
V
UVLO
V
UVHYS
I
IN_ON
I
IN_OFF
I
LEAK
R
DS(ON)
R
DS(ON)
I
LIM
V
EN_H
V
EN_L
V
EN_HYS
I
EN_BIAS
Td_on
t
ON
Conditions
IN rising
MIN
5.5
TYP
4.9
400
MAX
28
5.4
UNITS
V
V
mV
EN = IN for -00, EN = GND for -01, no load
EN = GND for -00, EN = IN for -01, no load
EN = GND for -00, EN = IN for -01, no load
AOZ1360AI V
IN
= 12V
AOZ1360AI V
IN
= 5.5V
R
SET
= 84.5kΩ (SO8)
R
SET
= XXX kΩ (DFN)
2
220
400
1
1
μA
μA
μA
mΩ
mΩ
A
V
V
mV
μA
μs
μs
μs
μs
°C
°C
22
33
2.7
35
43
3.4
0.8
2.0
100
1
R
L
=120Ω, C
L
= 1μF, SS = Floated
R
L
=120Ω, C
L
= 1μF, SS = Floated
R
L
=120Ω,
C
L
= 1μF,
C
SS
= 1nF
R
L
=120Ω,
C
L
= 1μF,
SS = Floated
220
(2)
280
360
280
130
30
t
OFF
T
SD
T
SD_HYS
(1) Stresses beyond the Absolute Maximum Ratings may cause permanent damage to the device.
(2) Depends on the gate loading of the discrete PMOS, to be confirmed by silicon data.
AOZ1360 Preliminary Data Sheet Rev0
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Alpha and Omega Semiconductor Confidential
Alpha & Omega Semiconductor
AOZ1360
Typical Operating Characteristics
Functional Characteristics
Turn-On
(Vin = 12V, R = 5.6Ω)
Turn-Off
(Vin = 12V, R = 5.6Ω)
Vin
2V/div
Vin
2V/div
Vout
2V/div
Vout
2V/div
EN
1V/div
EN
1V/div
Iout
0.5A/div
1ms/div
Current Limit
(Vin = 12V, R = 3.6Ω)
Iout
0.5A/div
20us/div
Over Temperature
(Vin = 12V, R = 3.6Ω)
Vin
5V/div
Vin
2V/div
Vout
2V/div
Vout
2V/div
EN
1V/div
EN
1V/div
Iout
0.5A/div
5ms/div
Iout
0.5A/div
100ms/div
AOZ1360 Preliminary Data Sheet Rev0
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Alpha and Omega Semiconductor Confidential
Alpha & Omega Semiconductor
AOZ1360
Timing Diagram
EN
OUT
VIH
VIL
90%
90%
T
D(OFF)
T
R
10%
T
D(ON)
Figure 1 AOZ1360 Timing Diagram
Functional Block Diagram
Figure 2 Functional Block Diagram
AOZ1360 Preliminary Data Sheet Rev0
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Alpha and Omega Semiconductor Confidential
