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參數(shù)資料
| 型號(hào)： | MIC2207YML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3mmx3mm 2MHz 3A PWM Buck Regulator |
| 中文描述： | 11 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, DSO12 |
| 封裝： | 3 X 3 MM, LEAD FREE, MLF-12 |
| 文件頁數(shù)： | 3/21頁 |
| 文件大?。?/td> | 780K |
| 代理商： | MIC2207YML |
Micrel
MIC2207
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
ESD Rating
........................................................2kV
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
3x3 MLF-12L (
θ
JA
)...................................60°C/W
Electrical Characteristics
(4)
V
IN
= V
EN
= 3.6V; L = 1
μ
H; C
OUT
= 4.7
μ
F; T
A
= 25°C, unless noted.
Bold
values indicate –40°C< T
J
< +125°C
Parameter
Condition
Min
2.7
2.45
Typ
Max
5.5
2.65
Units
Supply Voltage Range
V
Under-Voltage Lockout
Threshold
(turn-on)
2.55
V
UVLO Hysteresis
100
mV
Quiescent Current
V
FB
= 0.9 * V
NOM
(not switching)
V
EN
= 0V
±
1% I
LOAD
= 100mA
±
2% (over temperature) I
LOAD
= 100mA
570
900
10
μA
Shutdown Current
2
μA
[Adjustable] Feedback
Voltage
0.99
0.98
1
1.01
1.02
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
+500mV to 5.5V; I
LOAD
= 100mA
V
OUT
< 2V; V
IN
= 2.7V to 5.5V; I
LOAD
= 100mA
20mA < I
LOAD
< 3A
3.5
5
7
A
Output Voltage Line
Regulation
0.07
%
Output Voltage Load
Regulation
0.2
0.5
%
Maximum Duty Cycle
V
FB
≤
0.4V
I
SW
= 50mA V
FB
= 0.7V
FB_NOM
(High Side Switch)
100
%
PWM Switch ON-
Resistance
95
200
300
2.2
1.3
2
m
Oscillator Frequency
1.8
0.5
2
MHz
Enable Threshold
0.85
V
Enable Hysteresis
50
mV
Enable Input Current
0.1
μA
Power Good Range
±7
±10
200
%
Power Good Resistance
I
PGOOD
= 500μA
145
Over-Temperature
Shutdown
160
°
C
Over-Temperature
Hysteresis
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. Devices are ESD sensitive. Handling precautions recommended. Human body model: 1.5k
in series with 100pF.
4. Specification for packaged product only.
5. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value that is initially
measured at a 1V differential. For outputs below 2.7V, the dropout voltage is the input-to-output voltage differential with a minimum
input voltage of 2.7V.
April 2005
3
M9999-040705
www.micrel.com
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