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參數(shù)資料
| 型號： | AOZ1017AI |
| 廠商： | ALPHA |
| 英文描述： | EZBuck⑩ 3A Simple Regulator |
| 中文描述： | EZBuck⑩3A條簡單的穩(wěn)壓 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 612K |
| 代理商： | AOZ1017AI |
AOZ1017
Rev. 1.0 July 2007
www.aosmd.com
Page 4 of 16
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
Recommend Operating Ratings
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Note:
1. 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.
Θ
JA
is measured with the device mounted on 1-in
2
A
= 25°C.
Electrical Characteristics
T
A
= 25°C, V
IN
= V
EN
= 12V, V
OUT
= 3.3V unless otherwise specified
(2
)
Note:
2. Specification in
BOLD
indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
Parameter
Rating
Supply Voltage (V
IN
)
18V
LX to AGND
-0.7V to V
IN
+0.3V
EN to AGND
-0.3V to V
IN
+0.3V
FB to AGND
-0.3V to 6V
COMP to AGND
-0.3V to 6V
PGND to AGND
-0.3V to +0.3V
Junction Temperature (T
J
)
+150°C
Storage Temperature (T
S
)
-65°C to +150°C
Parameter
Rating
Supply Voltage (V
IN
)
4.5V to 16V
Output Voltage Range
0.8V to V
IN
Ambient Temperature (T
A
)
-40°C to +85°C
Package Thermal Resistance SO-8
(
Θ
JA
)
(1
)
87°C/W
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
IN
Supply Voltage
4.5
16
V
V
UVLO
Input Under-Voltage Lockout Threshold
V
V
IN
IN
Rising
Falling
4.00
3.70
2
1
V
I
IN
Supply Current (Quiescent)
I
OUT
V
EN
= 0, V
FB
= 1.2V, V
EN
>1.2V
3
mA
I
OFF
V
FB
Shutdown Supply Current
= 0V
10
uu
μ
A
Feedback Voltage
0.782
0.8
0.818
V
Load Regulation
0.5
%
Line Regulation
0.5
%
I
FB
Feedback Voltage Input Current
200
0.6
nA
V
EN
EN Input threshold
Off Threshold
On Threshold
2.0
V
V
HYS
EN Input Hysteresis
100
mV
MODULATOR
f
O
Frequency
400
500
600
kHz
D
MAX
D
MIN
Maximum Duty Cycle
100
%
Minimum Duty Cycle
6
%
Error Amplifier Voltage Gain
500
V
/ V
Error Amplifier Transconductance
PROTECTION
200
μA
/
V
I
LIM
V
PR
Current Limit
4
5
A
Over-Voltage Protection Threshold
Off Threshold
On Threshold
960
840
mV
T
J
Over-Temperature Shutdown Limit
150
°C
t
SS
Soft Start Interval
2.2
ms
OUTPUT STAGE
High-Side Switch On-Resistance
V
V
IN
IN
= 12V
= 5V
40
65
50
85
m
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