aoz1020 Alpha & Omega Semiconductor, aoz1020 Datasheet - Page 4

• Manufacturer Part Number: aoz1020
• Description: Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

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
POWER GOOD
PWM OUTPUT STAGE
A
Symbol
Rev. 1.0 March 2008
= 25°C, V
V
V
D
V
G
D
V
I
V
G
V
I
OLPG
V
UVLO
t
OFF
I
t
I
MAX
LIM
HYS
f
PGL
PG
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
PG LOW Voltage
PG Leakage
PG Threshold Voltage
PG Threshold Voltage Hystersis
PG Delay Time
High-Side Switch On-Resistance
Low-Side Switch On-Resistance
= V
EN
= 12V, V
OUT
Parameter
= 3.3V unless otherwise specified
www.aosmd.com
V
V
I
V
T
Off Threshold
On Threshold
T
T
T
I
V
V
V
V
OUT
OL
A
A
J
J
IN
IN
EN
IN
IN
IN
IN
= 25°C
= -40°C to +85°C
Rising
Falling
= 1mA
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
2.5
87
2
Typ.
100
500
500
200
150
100
128
166
4.1
3.7
1.6
0.8
0.5
90
97
50
75
1
1
4
3
Max.
0.812
200
600
130
200
105
2.5
0.6
4.0
0.5
16
10
92
65
AOZ1020
6
1
Page 4 of 15
Units
µA / V
%V
V / V
kHz
m
m
mA
mV
µA
ms
µA
nA
°C
µs
%
%
%
%
%
V
V
V
V
A
V
O