MIC2544-1YM 查看數據表（PDF） - Micrel
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MIC2544-1YM Datasheet PDF : 14 Pages
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Micrel, Inc.
Pin Configuration
MIC2544/2548
8-pin SOIC (M)
8-Pin MSOP (MM)
Note: Pins 4 and 5 for SOIC and MSOP are different.
Pin Description
Pin Number
MSOP-8
Pin Number
SOIC-9
1
1
2
2
3
3
5
4
7
7
6,8
6,8
4
5
Pin Name
EN
FLG
GND
ILIM
IN
OUT
NC
Pin Function
Enable (Input): Logic-compatible enable input. Active-high (-1) or active-
low (-2). High input >1.7V typical; low input <1.5V typical. Do not float.
MIC2548 only: Also resets thermal shutdown latch.
Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent
or thermal shutdown conditions. MIC2548 only: latched low on thermal
shutdown.
Ground.
Current Limit: Sets current-limit threshold using an external resistor, RSET1
connected to ground. 154Ω < RSET < 2.29kΩ.
Input: Output MOSFET drain. Also powers internal circuitry.
Switch (Output): Output MOSFET source. Pins 6 and 8 must be externally
connected.
Not internally connected.
April 2010
3
M9999-043010
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