AOZ3015AI Datasheet, PDF (3/14 Pages) Alpha & Omega Semiconductors – EZBuck™ 3 A Synchronous Buck Regulator

Block Diagram
VCC
AOZ3015AI
VIN
EN
UVLO
LDO
& POR
Regulator
OTP
Reference
& Bias
Softstart
Iinfo
ILimit
+
ISen
–
Q1
+
EAmp
FB
–
+
– ^PWM
Comp
+
PWM
Control
Logic
Level
Shifter
+
FET
Driver
LX
Q2
COMP
Vref
PWM/PEM
Master Control
Iinfo
500kHz
Oscillator
Over-Voltage
Protection
Comparator
+
0.96V
–
PEM Control
Logic
Iinfo
AGND
PGND
Absolute Maximum Ratings
Exceeding the Absolute Maximum Ratings may damage the
device.
Parameter
Rating
Supply Voltage (V_IN)
LX to AGND
LX to AGND (<20 ns)
EN to AGND
VCC, FB, COMP to AGND
PGND to AGND
Junction Temperature (T_J)
Storage Temperature (T_S)
ESD Rating⁽¹⁾
20 V
-0.7 V to V_IN+0.3 V
-5 V to 20 V
-0.3 V to V_IN+0.3 V
-0.3 V to 6.0 V
-0.3 V to +0.3 V
+150 °C
-65 °C to +150 °C
2.0 kV
Note:
1. Devices are inherently ESD sensitive, handling precautions are
required. Human body model rating: 1.5 kΩ in series with 100 pF.
Recommended Operating Conditions
The device is not guaranteed to operate beyond the Maximum
Recommended Operating Conditions.
Parameter
Rating
Supply Voltage (V_IN)
Output Voltage Range
Ambient Temperature (T_A)
Package Thermal Resistance
SO-8 (_JA)⁽²⁾
4.5 V to 18 V
0.8 V to 0.85*V_IN
-40 °C to +85 °C
87 °C/W
Note:
2. The value of _JA is measured with the device mounted on 1-in² FR-4
board with 2oz. Copper, in a still air environment with T_A = 25°C. The
value in any given application depends on the user’s specific board
design.
Rev. 1.1 June 2013
www.aosmd.com
Page 3 of 14