AOZ1021AI Alpha & Omega Semiconductor Inc, AOZ1021AI Datasheet - Page 4

• Manufacturer Part Number: AOZ1021AI
• Description: IC 3A SYNC BUCK REG 8-SOIC
• Manufacturer: Alpha & Omega Semiconductor Inc
• Series: EZBuck™r
• Type: Step-Down (Buck)r

Specifications of AOZ1021AI

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 16 V
• Current - Output: 3A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 1.15W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 785-1155-2

Electrical Characteristics
T
Note:
3. Specifications in BOLD indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
ENABLE
MODULATOR
PROTECTION
PWM OUTPUT STAGE
A
Symbol
Rev. 1.7 November 2010
= 25°C, V
V
D
V
G
D
I
V
G
V
I
V
UVLO
OFF
I
t
I
MAX
LIM
HYS
f
FB
MIN
VEA
SS
IN
EN
FB
O
EA
IN
IN
Supply Voltage
Input Under-Voltage Lockout Threshold
Supply Current (Quiescent)
Shutdown Supply Current
Feedback Voltage
Load Regulation
Line Regulation
Feedback Voltage Input Current
EN Input Threshold
EN Input Hysteresis
Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Current Limit
Over-Temperature Shutdown Limit
Soft Start Interval
High-Side Switch On-Resistance
Low-Side Switch On-Resistance
= V
EN
= 12V, V
Parameter
OUT
= 3.3V unless otherwise specified.
www.aosmd.com
I
T
T
V
V
V
V
V
Off Threshold
On Threshold
T
V
V
OUT
A
J
J
IN
IN
EN
IN
IN
IN
IN
Rising
Falling
= 25°C
Rising
Falling
= 12V
= 5V
= 12V
= 5V
= 0V
= 0, V
(3)
Conditions
FB
= 1.2V, V
EN
> 1.2V
0.788
Min.
350
100
4.5
3.5
2
3
Typ.
100
500
500
200
150
100
166
4.1
3.7
1.6
0.8
0.5
97
18
30
3
1
5
Max.
0.812
200
600
130
200
2.5
0.6
5.0
6.5
16
20
23
36
AOZ1021
6
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Units
µA / V
V / V
kHz
m
m
mA
mV
µA
nA
ms
°C
%
%
%
%
V
V
V
V
A
Ω
Ω