aoz1212 Alpha & Omega Semiconductor, aoz1212 Datasheet - Page 3

• Manufacturer Part Number: aoz1212
• Description: 3a Simple 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 GND
EN to GND
FB to GND
COMP to GND
BST to GND
VBIAS to GND
Junction Temperature (T
Storage Temperature (T
ESD Rating: Human Body Model
required. Human body model rating: 1.5k
Rev. 1.1 October 2007
COMP
VBIAS
EN
FB
Parameter
IN
0.8V
)
Reference
& Bias
0.2V
S
J
)
)
+5V
+
–
& POR
UVLO
+
–
EAmp
(1)
Comparator
Frequency
GM = 200 A/V
Foldback
Softstart
in series with 100pF.
Regulator
5V LDO
-0.7V to V
-0.3V to V
-65°C to +150°C
Rating
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
370kHz/24kHz
IN
IN
V
+150°C
LX
www.aosmd.com
Oscillator
+
–
+
+0.3V
+0.3V
Comp
PWM
30V
+6V
2kV
Recommend Operating Ratings
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Note:
2. The value of
Supply Voltage (V
Output Voltage Range
Ambient Temperature (T
Package Thermal Resistance (
FR-4 board with 2oz. Copper, in a still air environment with T
The value in any given application depends on the user's speci c
board design.
Control
SO-8
ILimit
PWM
Logic
DFN-8
OTP
Parameter
JA
is measured with the device mounted on 1-in
IN
)
A
)
ISen
+
–
JA
)
(2
)
Q1
Q2
GND
VIN
-40°C to +85°C
AOZ1212
Rating
Page 3 of 19
4.5V to 27V
0.8V to V
105°C/W
BST
LX
A
53°C/W
= 25°C.
2
IN