AOZ1034DI Alpha & Omega Semiconductor Inc, AOZ1034DI Datasheet - Page 3

• Manufacturer Part Number: AOZ1034DI
• Description: IC BUCK SYNC ADJ 4A 8DFN
• Manufacturer: Alpha & Omega Semiconductor Inc
• Series: EZBuck™r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of AOZ1034DI

• Featured Product: The AOZ103x Family Synchronous Buck Regulator
• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 18 V
• Current - Output: 4A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 V ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-VDFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 785-1254-2

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
EN to AGND
FB to AGND
COMP to AGND
PGND to AGND
Junction Temperature (T
Storage Temperature (T
ESD Rating
required. Human body model rating: 1.5kΩ in series with 100pF.
Rev. 1.1 September 2010
COMP
EN
FB
Parameter
(1)
0.8V
IN
Reference
& Bias
)
0.2V
S
J
)
)
+
–
& POR
UVLO
+
–
EAmp
Short Circuit
Detection
Comparator
Softstart
Regulator
5V LDO
Rating
-0.7V to V
-0.3V to V
-65°C to +150°C
-0.3V to +0.3V
23V (<50ns)
-0.3V to 6V
-0.3V to 6V
IN
IN
+150°C
+0.3V
+0.3V
2.0kV
www.aosmd.com
Oscillator
+
–
+
500kHz
20V
Comp
Internal
PWM
+5V
Recommended Operating Conditions
The device is not guaranteed to operate beyond the Maximum
Recommended Operating Conditions.
Note:
2. The value of
board with 2oz. Copper, in a still air environment with T
value in any given application depends on the user's specific board
design.
Supply Voltage (V
Output Voltage Range
Ambient Temperature (T
Package Thermal Resistance (Θ
5x4 DFN-8
Exposed Pad SO-8
Control
ILimit
PWM
Logic
OTP
Θ
Parameter
JA
AGND
is measured with the device mounted on 1-in
Shifter
Driver
Level
IN
FET
+
)
A
)
ISen
+
–
JA
)
Q2
Q1
PGND
VIN
-40°C to +85°C
AOZ1034
A
Rating
Page 3 of 18
4.5V to 18V
= 25°C. The
0.8V to V
50°C/W
50°C/W
2
LX
FR-4
IN