aoz1051pi Alpha & Omega Semiconductor, aoz1051pi Datasheet - Page 3

• Manufacturer Part Number: aoz1051pi
• Description: Ezbucktm 3 A Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Block Diagram
Absolute Maximum Ratings
Exceeding the Absolute Maximum Ratings may damage the
device.
Note:
1. Devices are inherently ESD sensitive, handling precautions are
Supply Voltage (V
LX to AGND
LX to AGND (20 ns)
EN to AGND
FB, SS, COMP to AGND
PGND to AGND
Junction Temperature (T
Storage Temperature (T
ESD Rating
required. Human body model rating: 1.5 k
Rev. 1.0 June 2011
COMP
EN
SS
FB
Parameter
(1)
0.8V
Reference
& Bias
IN
)
S
J
)
)
& POR
UVLO
+
–
EAmp
5µA
Softstart
SS
Ω
Regulator
in series with 100 pF.
5V LDO
-0.7 V to V
-0.3 V to V
Rating
-65 °C to +150 °C
-0.3 V to +0.3 V
-0.3 V to 6.0 V
-5 V to 22 V
IN
IN
+150 °C
Oscillator
+
+
–
+0.3 V
+0.3 V
500kHz
2.0 kV
www.aosmd.com
Internal
Comp
PWM
20 V
+5V
Recommended Operating Conditions
The device is not guaranteed to operate beyond the Maximum
Recommended Operating Conditions.
Note:
2. The value of
Supply Voltage (V
Output Voltage Range
Ambient Temperature (T
Package Thermal Resistance
FR-4 board with 2 oz. Copper, in a still air environment with
T
user’s specific board design.
Control
A
PWM
ILimit
Logic
Exposed Pad SO-8 (Θ
OTP
= 25 °C. The value in any given application depends on the
Parameter
Θ
AGND
JA
Shifter
Driver
Level
FET
is measured with the device mounted on a 1-in
+
IN
)
A
JA
ISen
)
)
(2)
+
–
Q2
Q1
PGND
0.8 V to 0.85 • V
VIN
AOZ1051PI
-40 °C to +85 °C
Rating
4.5 V to 18 V
Page 3 of 14
50 °C/W
LX
2
IN