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參數(shù)資料
| 型號： | MIC4721YMM |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual UART with 64-byte FIFO, SOT313-2 (LQFP48), Reel Pack, SMD, 13", Turned |
| 中文描述： | 11 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | LEAD FREE, MSOP-10 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 827K |
| 代理商： | MIC4721YMM |
Micrel, Inc.
MIC4721
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
).......................................................+6V
Output Switch Voltage (V
SW
)..........................................+6V
Output Switch Current (I
SW
)............................................11A
Logic Input Voltage (V
EN
) ..................................–0.3V to V
IN
Storage Temperature (T
s
).........................–60°C to +150°C
May 2007
3
M9999-052907-A
Operating Ratings
(2)
Supply Voltage (V
IN
).....................................+2.7V to +5.5V
Logic Input Voltage (V
EN
) .......................................0V to V
IN
Junction Temperature (T
J
) ........................–40°C to +125°C
Junction Thermal Resistance
MSOP-10L (
θ
JA
)...............................................130°C/W
MSOP-10L (
θ
JC
) ................................................43°C/W
Electrical Characteristics
(3)
V
IN
= V
EN
= 3.6V; L = 1μH; C
OUT
= 4.7μF; T
A
= 25°C, unless noted.
Bold
values indicate –40°C< T
J
< +125°C.
Parameter
Supply Voltage Range
Under-Voltage Lockout
Threshold
UVLO Hysteresis
Quiescent Current
Shutdown Current
[Adjustable] Feedback
Voltage
FB pin input current
Current Limit in PWM Mode
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Duty Cycle
Condition
(turn-on)
Min
2.7
2.45
Typ
2.55
Max
5.5
2.65
Units
V
V
V
FB
= 0.9 * V
NOM
(not switching)
V
EN
= 0V
±
2% (over temperature) I
LOAD
= 100mA
100
570
2
mV
μA
μA
V
900
10
1.02
0.98
V
FB
= 0.9 * V
NOM
V
OUT
> 2V; V
IN
= V
OUT
+500mV to 5.5V; I
LOAD
= 100mA
V
OUT
< 2V; V
IN
= 2.7V to 5.5V; I
LOAD
= 100mA
20mA < I
LOAD
< 3A
1
5
nA
A
%
3.5
0.07
0.2
%
V
FB
≤
0.4V
I
SW
= 50mA; V
FB
= 0.7V
FB_NOM
(High Side Switch)
100
%
PWM Switch ON-
Resistance
Oscillator Frequency
Enable Threshold
Enable Hysteresis
Enable Input Current
Power Good Range
Power Good Resistance
Over-Temperature
Shutdown
Over-Temperature
Hysteresis
95
200
300
2.2
1.3
2.3
±10
250
m
m
MHz
V
mV
μA
%
°
C
I
PGOOD
= 500μA
1.8
0.5
2
0.85
50
0.1
±7
145
160
20
°
C
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Specification for packaged product only.
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