MIC4685 查看數據表（PDF） - Micrel
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MIC4685 Datasheet PDF : 17 Pages
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Micrel, Inc.
Ordering Information
Part Number
Standard
RoHS Compliant*
Voltage
MIC4685BR
MIC4685WR
Adj.
MIC4685WR EV
Adj.
* RoHS compliant with ‘high-melting solder’ exemption.
Junction
Temp. Range
–40° to +125°C
MIC4685
Package
7-Pin SPAK
Evaluation Board
Pin Configuration
7 NC
6 SW
5 EN
4 GND
3 FB
2 IN
1 BS
7-Pin SPAK (R)
Pin Description
Pin Number
1
2
3
4, Tab
5
6
7
Pin Name
BS
IN
FB
GND
EN
SW
NC
Pin Function
Bootstrap Voltage Node (External Component): Connect to external boost
capacitor.
Supply (Input): Unregulated +4V to 30V supply voltage (34V transient)
Feedback (Input): Outback voltage feedback to regulator. Connect to 1.235V
tap of resistive divider.
Ground
Enable (Input): Logic high = enable; logic low = shutdown
Switch (Output): Emitter of NPN output switch. Connect to external storage
inductor and Schottky diode.
No Connect. Tie this pin-to-ground.
January 2010
2
M9999-012610
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