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參數(shù)資料
| 型號(hào)： | MIC2290YML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2mm 】 2mm PWM Boost Regulator with Internal Schotty Diode |
| 中文描述： | 2 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 2 MM, LEAD FREE, MLF-8 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 98K |
| 代理商： | MIC2290YML |
August 2004
3
M9999-081104
MIC2290
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) .....................................................12V
Switch Voltage (V
SW
) .....................................
–
0.3V to 34V
Enable Pin Voltage (V
EN
)...................................
–
0.3 to V
IN
FB Voltage (V
FB
) .............................................................6V
Switch Current (I
SW
) .......................................................2A
Storage Temperature (T
S
) .......................
–
65
°
C to +150
°
C
ESD Rating
(3)
................................................................2kV
Micrel
Operating Ratings
(2)
Supply Voltage (V
IN
) ........................................ 2.5V to 10V
Junction Temperature Range (T
J
) ...........
–
40
°
C to +125
°
C
Package Thermal Impedance
2mm
×
2mm MLF
(
θ
JA
) ....................................93
°
C/W
Electrical Characteristics
(4)
T
A
= 25
°
C, V
IN
= V
EN
= 3.6V, V
OUT
= 10V, I
OUT
= 20mA, unless otherwise noted.
Bold
values indicate
–
40
°
C
≤
T
J
≤
±
125
°
C.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
IN
V
UVLO
I
VIN
I
SD
V
FB
Supply Voltage Range
2.5
10
V
Undervoltage Lockout
1.8
2.1
2.4
V
Quiescent Current
V
FB
= 2V, (not switching)
V
EN
= 0V
(5)
(
±
1%)
(
±
2%) (Over Temp)
2.5
5
mA
Shutdown Current
0.2
1
μ
A
Feedback Voltage
1.227
1.215
1.24
1.252
1.265
V
V
I
FB
Feedback Input Current
V
FB
= 1.24V
3V
≤
V
IN
≤
5V
5mA
≤
I
OUT
≤
20mA
–
450
nA
Line Regulation
0.1
1
%
Load Regulation
0.2
1
%
D
MAX
I
SW
V
SW
I
SW
V
EN
Maximum Duty Cycle
85
90
%
Switch Current Limit
0.75
A
Switch Saturation Voltage
I
SW
= 0.5A
V
EN
= 0V, V
SW
= 10V
Turn on
Turn off
450
mV
Switch Leakage Current
0.01
5
μ
A
Enable Threshold
1.5
V
V
0.4
I
EN
f
SW
V
D
I
RD
V
OVP
T
J
Enable Pin Current
V
EN
= 10V
20
40
μ
A
Oscillator Frequency
1.05
1.2
1.35
MHz
Schottky Forward Drop
I
D
= 150mA
V
R
= 30V
(nominal voltage)
0.8
1
V
Schottky Leakage Current
4
μ
A
Overvoltage Protection
30
32
34
V
Overtemperature
Threshold Shutdown
150
10
°
C
°
C
Hysteresis
Notes:
1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating
the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T
(max),
the junction-to-ambient thermal resistance,
θ
, and the ambient temperature, T
A
. The maximum allowable power dissipation will result in excessive
die temperature, and the regulator will go into thermal shutdown.
2. This device is not guaranteed to operate beyond its specified operating rating.
3. IC devices are inherently ESD sensitive. Handling precautions required. Human body model rating: 1.5K in series with 100pF.
4. Specification for packaged product only.
5. I
SD
= I
VIN
.
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