AOZ1110QI Alpha & Omega Semiconductor Inc, AOZ1110QI Datasheet - Page 4

• 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

Electrical Characteristics
T
A
ENABLE
OSCILLATOR
ERROR AMPLIFIER
OVER CURRENT, OVER VOLTAGE AND OVER TEMPERATURE
OSCILLATOR
Rev. 1.0 October 2010
Symbol
I
t
= 25°C, V
SS_OUT
V
ON_MIN
I
D
V
G
OVP
SS_IN
I
V
G
V
I
T
V
UVLO
OFF
I
t
I
MAX
LIM
HYS
f
FB
VEA
SS
IN
EN
LO
FB
O
EA
IN
IN
Supply Voltage
Input Under-Voltage Lockout
Threshold
Supply Current (Quiescent)
Shutdown Supply Current
Feedback Voltage
Load Regulation
Line Regulation
FB Input Current
EN Input Threshold
EN Input Hysteresis
Frequency
Maximum Duty Cycle
Minimum Controllable on time
Error Amplifier Open Loop Voltage
gain
Error Amplifier
Transconductance
Current Limit
Current Limit Response Time
Short Circuit Latch off Time
Over Voltage Protection
OVP Hyteresis
Over-Temperature shutdown limit
Soft Start Pin Source Current
Soft Start Pin Sink Current
Internal Soft Time
= V
(4)
EN
= 3.3V, unless otherwise specified
Parameter
(4)
(4)
(4)
(4)
V
V
V
V
Active PGood = 100kΩ
Excluding PG current
T
T
0A < Iload < 3A,
V
2.7V < V
V
Off threshold
On threshold
F
F
V
V
T
T
SS = 0V,
C
V
C
C
A
A
SEL
SEL
J
J
IN
IN
FB
EN
IN
OUT
IN
FB
IN
SS
SS
SS
falling
rising
= 25°C
= -40°C to 85°C
www.aosmd.com
rising
falling
= 3.3V, V
= 3.3V
= 2.7V,
= 0V
= 1.0V, L disconnected
= 0V,
= 0.001μF to 0.1μF
= 0.001μF to 0.1μF
= open
= VDD
= GND
= 1.5V Iload = 100mA
Condition
IN
(3)
< 5.5V,
OUT
=1 .5V
0.792
0.784
Min.
2.20
0.85
425
100
2.7
1.2
1.5
1.5
5
0.800
0.800
Typ.
2.50
2.30
200
500
200
200
115
150
100
500
1.5
0.2
0.2
1.0
2.0
3.0
60
6
2
3
Max.
0.808
0.816
2.60
1.15
200
575
200
5.5
0.4
3.0
5.0
3
1
7
AOZ1110
Page 4 of 16
Units
μA / V
MHz
kHz
mA
mV
mA
μA
nA
dB
ms
μA
°C
°C
μs
ns
ns
%
%
%
%
%
V
V
V
V
V
V
A