AOZ1110QI Alpha & Omega Semiconductor Inc, AOZ1110QI Datasheet - Page 3

• Manufacturer Part Number: AOZ1110QI
• Description: IC BUCK SYNC ADJ 4A 24QFN
• Manufacturer: Alpha & Omega Semiconductor Inc
• Series: EZBuck™r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of AOZ1110QI

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 5.5 V
• Current - Output: 4A
• Frequency - Switching: 500kHz, 1MHz
• Voltage - Input: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-WFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 785-1257-2

Functional Block Diagram
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
Supply Voltage (V
Supply Voltage (V
LX to GND
EN to GND
FB to GND
COMP to GND
SS to GND
Junction Temperature (T
Storage Temperature (T
ESD Rating
PGOOD
FSEL
NC
Rev. 1.0 October 2010
PGOOD
Parameter
COMP
FESL
(1)
EN
SS
FB
IN
DD
)
0.8V
)
Reference
& Bias
S
J
)
)
PGood Logic
& POR
UVLO
+
–
EAmp
Softstart
Rating
-65°C to +150°C
-0.7V to 6V
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
-0.3V to 6V
AGND
+150°C
500kHz / 1 MHz
www.aosmd.com
Oscillator
+
–
+
2kV
Comp
6V
6V
PWM
Recommended Operating Conditions
The device is not guaranteed to operate beyond the Maximum
Recommended Operating Conditions.
Note:
1. Devices are inherently ESD sensitive, handling precautions are
2. The value of
FR-4 board with 2oz. Copper, in a still air environment with T
The 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
required. Human body model rating: 1.5kΩ in series with 100pF.
4x4 QFN-24 (Θ
Control
VDD
PWM
ILimit
Logic
OTP
Θ
Parameter
JA
Shifter
Driver
Level
FET
is measured with the device mounted on 1-in
JA
+
IN
)
)
ISen
A
)
+
–
(2)
Q1
Q2
PGND
VIN
-40°C to +85°C
AOZ1110
Rating
2.7V to 5.5V
Page 3 of 16
0.8V to V
LX
45°C/W
A
= 25°C.
2
IN