Dual Channel Load Switch with
Controlled Slew Rate
AOZ1325DI
General Description
The AOZ1325DI is a P-channel high-side load switch
with slew rates of 1ms. The AOZ1325DI provide an
output discharge circuit to quickly discharge the output
when the switch is disabled.
The P-channel MOSFET has typical on resistance of
250m
Ω
at 1.8V. The very low R
DS(ON)
significantly
reduces the power path dissipation. The input voltage
range of AOZ1325DI is from 1.6V to 5.5V. The control
input is compatible with both TTL and CMOS logic. Ultra
low quiescent current makes this product suitable for any
portable applications.
The AOZ1325DI is available in 8-pin 3x3 DFN package
and is rated over the -40°C to +85°C ambient
temperature range.
Features
●
●
●
●
●
●
●
●
1.6V to 5.5V input voltage range
Low R
DS(ON)
(250m
Ω
typical at 1.8V)
Controlled turn-on slew rate: 1ms
Output discharge function
Low quiescent current (1.0µA typical)
Low Shutdown Current (<1µA)
4kV ESD rating
Tiny 3x3mm DFN package
Applications
●
●
●
●
●
●
Cellular phones
MP3 players
Personal media players
Notebook computers
Digital still cameras
Hot-swap applications
Typical Applications Circuit
V
IN
IN1
C1
1µF
V
OUT
OUT1
C3
0.1µF
OFF ON
EN1
AOZ1325DI
V
IN
IN2
C2
1µF
V
OUT
OUT2
C4
0.1µF
OFF ON
EN2
GND
Rev. 1.2 September 2009
www.aosmd.com
Page 1 of 12
AOZ1325DI
Ordering Information
Part Number
AOZ1325DI
Slew Rate
1ms
Output Discharge
Yes
Package
3x3 DFN-8
Environmental
RoHS Compliant
Green Product
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit
www.aosmd.com/web/quality/rohs_compliant.jsp
for additional information.
Pin Configuration
Top View
V
IN
1
1
EN1
2
EN2
3
V
IN
2
4
8
7
6
5
V
OUT
1
NC
GND
V
OUT
2
3mm x 3mm DFN-8
Pin Description
Pin Name
V
IN
1
EN1
EN2
V
IN
2
V
OUT
2
GND
NC
V
OUT
1
Pin Number
1
2
3
4
5
6
7
8
Pin Function
Input. IN is the drain of the P-channel MOSFET. It is the supply input of the IC.
Enable. The P-channel MOSFET turns on when EN is logic high.
Enable. The P-channel MOSFET turns on when EN is logic high.
Input. IN is the drain of the P-channel MOSFET. It is the supply input of the IC.
Output. OUT is the source of the P-channel MOSFET.
Ground.
No Connect.
Output. OUT is the source of the P-channel MOSFET.
Rev. 1.2 September 2009
www.aosmd.com
Page 2 of 12
AOZ1325DI
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the device.
Thermal Ratings
The device is not guaranteed to operate beyond the Thermal Ratings.
Parameter
Input Voltage (V
IN
)
Enable Voltage (V
EN
)
Continuous Drain Current (I
D
)
T
A
= 25°C
T
A
= 85°C
Pulsed Drain Current (I
DP
)
Continuous Diode Current (I
S
)
Storage Temperature (T
S
)
ESD Rating
(1)
6V
Rating
V
IN
+ 0.3V
±1.0A
±0.7A
±6A
-50mA
-55°C to +150°C
4kV
Parameter
Input Voltage (V
IN
)
Junction Temperature (T
J
)
Package Thermal Resistance,
3 X 3 DFN-8 (Θ
JA
)
Rating
+1.6 to +5.5V
-40°C to +125°C
136°C/W
Note:
1. Devices are inherently ESD sensitive, handling precautions are
required. Human body model is a 100pF capacitor discharging
through a 1.5k
Ω
resistor.
Electrical Characteristics
T
A
= 25°C, V
IN
= V
EN
= 5V, unless otherwise specified.
Symbol
V
EN_TH
I
IN
I
OFF
R
DS(ON)
R
SHUTDOWN
DELAY TIME
T
D(ON)
T
R
T
D(OFF)
T
F
Parameter
Enable Threshold Voltage
Quiescent Supply Current
(Single Channel)
OFF state Leakage Current
(Single Channel)
Switch On-Resistance
(Single Channel)
Turn-off Resistance
(Single Channel)
Output Turn-on Delay
Output Rise-time
Output Turn-off Delay
Output Fall-time
Conditions
V
IN
= 1.6V to 4.5V, I
D
= -250uA
V
IN
=V
EN
= 5.5V
V
IN
= +5.5V
,
V
EN
= 0V
V
IN
= 3.3V, ID = -100mA, V
EN
= 1.5V
V
IN
= 1.8V, ID = -100mA, V
EN
= 1.5V
V
IN
= 3.6V, I
TEST
= 1mA, V
EN
= 0V
Min.
0.3
Typ.
1.6
Max
1.2
3
1
Units
V
µA
μA
m
Ω
m
Ω
150
250
162
210
350
220
Ω
V
IN
= 3.6V, ID = -100mA, V
EN
= 1.5V
V
IN
= 3.6V, ID = -100mA, V
EN
= 1.5V
V
IN
= 3.6V, ID = -100mA,
V
EN
= 1.5V without output cap
V
IN
= 3.6V, ID = -100mA,
V
EN
= 1.5V without output cap
500
320
1000
60
20
700
1500
200
100
µs
µs
ns
ns
Rev. 1.2 September 2009
www.aosmd.com
Page 3 of 12
AOZ1325DI
Typical Operating Characteristic
220
R
DS(ON)
Variance with Temperature
Vds = 3.6V, Id = 0.1A
EN Threshold Voltage vs. Input Voltage
1.1
1.0
VIH, Id = -250A
VIL, Id = -250A
200
EN Threshold Votlage (V)
-20
0
20
40
60
80
100 120 140 160
0.9
0.8
0.7
0.6
0.5
0.4
1.5
R
DS(ON)
(mΩ)
180
160
140
120
100
-40
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Temperature (°C)
Input Voltage (V)
ON Resistance vs. Input Voltage
400
800
700
350
600
ON Resistance vs. Input Voltage
Vin=1.8V
Vin=2.5V
Vin=4.5V
R
DS(ON)
(mΩ)
300
250
IL = 1.2A
IL = 0.9A
IL = 0.1A
V
DROP)
(mV)
6.0
500
400
300
200
200
150
100
100
1.5
0
2.0
2.5
3.0 3.5 4.0 4.5
Input Voltage (V)
5.0
5.5
0
0.2
0.4
0.6
0.8
Load Current (A)
1.0
1.2
Turn-on Delay vs. Input Voltage
350
300
250
200
150
100
50
0
1.5
200
1200
Rise Time vs. Input Voltage
1000
Rise Time (μs)
2
2.5
3
3.5
Input Voltage (V)
4
4.5
5
Turn-On (μs)
800
600
400
0
1.5
2
2.5
3
3.5
Input Voltage (V)
4
4.5
5
Rev. 1.2 September 2009
www.aosmd.com
Page 4 of 12
AOZ1325DI
Typical Operating Characteristic
(Continued)
Turn-off Delay vs. Input Voltage
180
160
140
120
100
80
60
40
20
0
1.5
45
40
35
30
Fall Time vs. Input Voltage
Fall Time (ns)
2
2.5
3
3.5
Input Voltage (V)
4
4.5
5
Turn-Off (ns)
25
20
15
10
5
0
1.5
2
2.5
3
3.5
Input Voltage (V)
4
4.5
5
Rev. 1.2 September 2009
www.aosmd.com
Page 5 of 12
DIY/开源硬件专区
