參數(shù)資料
型號(hào): AOZ1210AI
廠商: ALPHA
英文描述: EZBuck⑩ 2A Simple Buck Regulator
中文描述: EZBuck⑩甲簡(jiǎn)單降壓穩(wěn)壓器
文件頁數(shù): 4/14頁
文件大?。?/td> 583K
代理商: AOZ1210AI
AOZ1210
Rev. 1.3 December 2007
www.aosmd.com
Page 4 of 14
Electrical Characteristics
T
A
= 25°C, V
IN
= V
EN
= 12V, V
OUT
= 3.3V unless otherwise specified
(3
)
Note:
3. Specification in
BOLD
indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
IN
Supply Voltage
4.5
27
V
V
UVLO
Input Under-Voltage Lockout Threshold
V
V
IN
IN
Rising
Falling
4.3
4.1
2
3
V
I
IN
Supply Current (Quiescent)
I
OUT
V
EN
= 0, V
FB
= 1.2V, V
EN
> 2V
3
mA
I
OFF
V
FB
Shutdown Supply Current
= 0V
20
μA
Feedback Voltage
0.782
0.8
0.818
V
Load Regulation
0.5
%
Line Regulation
0.08
% / V
I
FB
Feedback Voltage Input Current
200
nA
ENABLE
V
EN
EN Input Threshold
Off Threshold
On Threshold
2.5
0.6
V
V
HYS
EN Input Hysteresis
200
mV
MODULATOR
f
O
Frequency
315
370
425
kHz
D
MAX
D
MIN
G
VEA
G
EA
Maximum Duty Cycle
85
%
Minimum Duty Cycle
6
%
Error Amplifier Voltage Gain
500
V
/ V
Error Amplifier Transconductance
PROTECTION
200
μA
/
V
I
LIM
Current Limit
3.5
5.0
A
Over-Temperature Shutdown Limit
T
T
J
J
Rising
Falling
145
100
°C
f
SC
t
SS
Short Circuit Hiccup Frequency
V
FB
= 0V
24
kHz
Soft Start Interval
4
ms
PWM OUTPUT STAGE
R
DS(ON)
High-Side Switch On-Resistance
70
100
m
High-Side Switch Leakage
V
EN
= 0V, V
LX
= 0V
10
μA
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