aoz1212 Alpha & Omega Semiconductor, aoz1212 Datasheet - Page 4

• Manufacturer Part Number: aoz1212
• Description: 3a Simple Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Electrical Characteristics
T
Note:
3. Speci cation in BOLD indicate an ambient temperature range of -40°C to +85°C. These speci cations are guar anteed by design.
ENABLE
MODULATOR
PROTECTION
PWM OUTPUT STAGE
A
Symbol
Rev. 1.1 October 2007
R
= 25°C, V
V
D
V
G
D
DS(ON)
I
V
G
V
I
V
UVLO
OFF
I
f
t
I
MAX
LIM
HYS
f
FB
MIN
VEA
SC
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 Ampli er Voltage Gain
Error Ampli er Transconductance
Current Limit
Over-Temperature Shutdown Limit
Short Circuit Hiccup Frequency
Soft Start Interval
High-Side Switch On-Resistance
High-Side Switch Leakage
= V
EN
= 12V, V
OUT
Parameter
= 3.3V unless otherwise specified
www.aosmd.com
V
V
I
V
Off Threshold
On Threshold
T
T
V
V
OUT
J
J
IN
IN
EN
FB
EN
Rising
Falling
Rising
Falling
= 0V
= 0V
= 0V, V
= 0, V
(3
)
Conditions
FB
LX
= 1.2V, V
= 0V
EN
> 2V
0.782
Min.
315
4.5
2.5
3.5
85
Typ.
0.08
200
370
500
200
145
100
4.3
4.1
0.8
0.5
24
4
70
2
3
6
Max.
0.818
200
425
100
0.6
5.0
27
20
10
AOZ1212
3
6
Page 4 of 19
Units
µA / V
% / V
V / V
kHz
kHz
m
mA
mV
µA
ms
µA
nA
°C
%
%
%
V
V
V
V
A