Micrel, Inc.
Ordering Information
MIC2289C
Marking
Overoltage
Junction
Part Number
MIC2289C-34BD6
MIC2289C-34YD6
Code
SM34|
SM34|
Protection
34V
34V
Temp. Range
–40°C to +125°C
–40°C to +125°C
Package
6-Pin Thin SOT-23
6-Pin Thin SOT-23
Lead Finish
Standard
Pb-Free
Note : Marking bars may not be to scale.
Pin Configuration
FB GND SW
3
2
1
Denotes
Pb-Free
SM34
Denotes
MIC2289C
4
5
6
EN VIN VOUT
6- Pin Thin SOT-23 (D6)
Pin Description
Pin Number
1
2
3
4
5
6
Pin Name
SW
GND
FB
EN
VIN
OUT
Pin Name
Switch node (Input): Internal power BIPOLAR collector.
Ground (Return): Ground.
Feedback (Input): Output voltage sense node. Connect the cathode of the LED to
this pin. A resistor from this pin to ground sets the LED current.
Enable (Input): Logic high enables regulator. Logic low shuts down regulator.
Supply (Input): 2.7V to 8V for internal circuitry.
Output Pin and Overvoltage Protection (Output): Connect to the output capacitor
and LEDs.
August 2007
2
M9999-081507-B
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