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參數(shù)資料
| 型號： | MIC2202YMM |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH EFFICIENCY 2MHZ SYNCHRONOUS BUCK CONVERTER 1UP STABLE PWM REGULATOR |
| 中文描述： | 2.5 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | LEAD FREE, MSOP-10 |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 565K |
| 代理商： | MIC2202YMM |
Micrel, Inc.
MIC2202
March 2007
3
M9999-031907
Absolute Maximum Ratings
(1)
Supply Voltage (VIN).........................................................6V
Output Switch Voltage (VSW) ............................................6V
Logic Input Voltage (VEN, VSYNC_IN).................... VIN to –0.3V
Power Dissipation ..................................................... Note 3
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating
(4).................................................................. 2kV
Operating Ratings
(2)
Supply Voltage (VIN)..................................... +2.3V to +5.5V
Junction Temperature (TJ) ..................–40°C ≤ TJ ≤ +125°C
Package Thermal Resistance
MSOP-10L (
θJA)...............................................115°C/W
3x3 MLF-10 (
θJA) ...............................................60°C/W
Electrical Characteristics
(5)
TA = 25°C with VIN = 3.5V unless otherwise noted; bold values indicate –40°C< TJ < +125°C.
Parameter
Condition
Min
Typ
Max
Units
Supply Voltage Range
2.3
5.5
V
EN = VIN; VFB = 0.55V (not switching)
350
450
A
Quiescent Current
EN = 0V
0.01
1
A
MIC2202 [Adjustable] Feedback
Voltage
0.4875
0.5
0.5125
V
Output Voltage Line Regulation
VOUT < 2V; VIN = 2.3V to 5.5V, ILOAD= 100mA
0.05
0.5
%
Output Voltage Load Regulation
0mA < ILOAD < 500mA
0.1
0.5
%
Bias Regulator Output Voltage
2.2
2.32
2.6
V
Maximum Duty Cycle
VFB = 0.7V
100
%
Current Limit
VFB = 0.7V
1
1.8
2.5
A
Switch ON-Resistance
VIN = 3.5V, ISW = 300mA; VFB = 0.35V
0.65
0.9
VIN = 3.5V, ISW = 300mA; VFB = 0.55V
0.55
0.75
Enable Input Current
0.01
1
A
Sync Frequency Range
1.6
2.5
MHz
SYNC_IN Threshold
0.7
1
1.7
V
Sync Minimum Pulse Width
10
ns
SYNC_IN Input Current
1
A
Oscillator Frequency
1.8
2
2.2
MHz
Enable Threshold
0.5
0.9
1.3
V
Enable Hysteresis
20
mV
Over-temperature Shutdown
160
°C
Over-temperature Shutdown
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. Absolute maximum power dissipation is limited by maximum junction temperature where PD(MAX) = (TJ(MAX) – TA) ÷ θJA.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
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