aoz1094 Alpha & Omega Semiconductor, aoz1094 Datasheet - Page 3

• Manufacturer Part Number: aoz1094
• Description: Ezbucktm 5a Simple Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Block Diagram
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
Note:
Pin Number
Supply Voltage (V
LX to AGND
EN to AGND
FB to AGND
COMP to AGND
PGND to AGND
Junction Temperature (T
Storage Temperature (T
ESD Rating
Rev. 1.3 October 2010
COMP
7, 8
6
EN
FB
Parameter
(1)
0.8V
Pin Name
Reference
IN
0.96V
& Bias
)
0.2V
EN
LX
S
J
)
)
& POR
UVLO
+
–
+
–
+
–
EAmp
Softstart
The enable pin is active high. Connect EN pin to V
PWM output connection to inductor. Thermal connection for output stage.
Comparator
Overvoltage
Frequency
Comparator
Foldback
Protection
Regulator
5V LDO
Rating
-0.7V to V
-0.3V to V
-65°C to +150°C
-0.3V to +0.3V
-0.3V to 6V
-0.3V to 6V
500kHz/38kHz
Oscillator
+
–
+
IN
IN
+150°C
Comp
Internal
PWM
+0.3V
+0.3V
www.aosmd.com
+5V
18V
2kV
1. Devices are inherently ESD sensitive, handling precautions are required.
Recommended Operating Conditions
The device is not guaranteed to operate beyond the Maximum
Recommended Operating Conditions.
Note:
2. The value of Θ
Control
PWM
ILimit
Logic
Supply Voltage (V
Output Voltage Range
Ambient Temperature (T
Package Thermal Resistance (Θ
Human body model rating: 1.5k
board with 2oz. Copper, in a still air environment with T
SO-8
DFN-8
OTP
Pin Function
AGND
Shifter
Driver
Level
JA
FET
Parameter
+
IN
is measured with the device mounted on 1-in
if not used. Do not leave the EN pin floating.
IN
)
ISen
+
–
A
)
Ω
in series with 100pF.
JA
Q1
)
(2
PGND
)
VIN
-40°C to +85°C
A
AOZ1094
Rating
= 25°C. The
LX
Page 3 of 19
4.5V to 16V
0.8V to V
82°C/W
50°C/W
2
FR-4
IN