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參數(shù)資料
| 型號： | MIC3385YML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 8MHz Power System Module with LDO Standby Mode |
| 中文描述： | 2 A SWITCHING REGULATOR, 8800 kHz SWITCHING FREQ-MAX, DSO14 |
| 封裝： | 3 X 3.50 MM, LEAD FREE, MLF-14 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 684K |
| 代理商： | MIC3385YML |
Micrel, Inc.
MIC3385
Absolute Maximum Ratings
(1)
November 2006
3
M9999-111006-A
Supply Voltage (V
IN
).......................................................+6V
Output Switch Voltage (V
SW
)..........................................+6V
Output Switch Current (I
SW
)..............................................2A
Logic Input Voltage (V
EN
, V
LOWQ
).......................–0.3V to V
IN
Storage Temperature (T
s
).........................–60°C to +150°C
EDS Rating
(3)
..................................................................3kV
Operating Ratings
(2)
Supply Voltage (V
IN
).....................................+2.7V to +5.5V
Logic Input Voltage (V
EN
, V
LOWQ
).......................–0.3V to V
IN
Junction Temperature (T
J
) ........................–40°C to +125°C
Junction Thermal Resistance
3mm x 3.5mm MLF-14L (
θ
JA
) ............................55°C/W
Electrical Characteristics
(4)
V
IN
= V
EN
= V
LOWQ
=3.6V; L = 0.47μH; C
OUT
= 10μF; T
A
= 25°C, unless noted.
Bold
values indicate –40°C< T
J
< +125°C.
Parameter
Condition
Min
Typ
Max
Units
Supply Voltage Range
2.7
5.5
V
Under-Voltage Lockout
Threshold
(turn-on)
2.45
2.55
2.65
V
UVLO Hysteresis
100
mV
Quiescent Current, PWM
mode
V
FB
= 0.9 * V
NOM
(not switching)
690
900
μA
Quiescent Current, LDO
mode
V
LOWQ
= 0V;I
OUT
= 0mA
16
29
μA
Shutdown Current
V
EN
= 0V
±
1%
±
2% (over temperature)
0.01
5
μA
[Adjustable] Feedback
Voltage
0.99
0.98
1
1.01
1.02
V
V
FB pin input current
1
nA
Current Limit in PWM Mode
V
FB
= 0.9 * V
NOM
V
OUT
> 2V; V
IN
= V
OUT
+300mV to 5.5V; I
LOAD
= 100mA
V
OUT
< 2V; V
IN
= 2.7V to 5.5V; I
LOAD
20mA < I
LOAD
< 300mA
0.75
1
1.85
A
Output Voltage Line
Regulation
0.13
%
Output Voltage Load
Regulation, PWM Mode
0.2
0.5
%
Output Voltage Load
Regulation, LDO Mode
100μA < I
LOAD
< 50mA
V
LOWQ
= 0V
V
FB
≤
0.4V
I
SW
= 50mA V
FB
= 0.7V
FB_NOM
(High Side Switch)
I
SW
= -50mA V
FB
= 1.1V
FB_NOM
(Low Side Switch)
0.1
0.2
%
Maximum Duty Cycle
100
%
PWM Switch
ON-Resistance
0.4
0.4
Oscillator Frequency
7.2
8
8.8
MHz
LOWQ threshold voltage
0.5
0.85
1.3
V
LOWQ Input Current
0.1
2
μA
Enable Threshold
0.5
0.85
1.3
V
Enable Input Current
0.1
2
μA
LDO Dropout Voltage
I
OUT
= 50mA,
Note 5
110
mV
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