mic4690 Micrel Semiconductor, mic4690 Datasheet - Page 2

• Manufacturer Part Number: mic4690
• Description: Mic4690 500khz 1a Superswitcher? Buck Regulator
• Manufacturer: Micrel Semiconductor

MIC4690
Ordering Information
Pin Configuration
Pin Description
MIC4690
Pin Number
5-8
1
2
3
4
MIC4690BM
Standard
Part Number
Pin Name
SHDN
GND
VIN
SW
FB
MIC4690YM
Lead-Free
SHDN
VIN
SW
FB
Pin Function
Shutdown (Input): Logic low enables regulator. Logic high (>1.5V) shuts
down regulator.
Supply Voltage (Input): Unregulated +4V to +30V continuous supply
voltage, with a maximum +34V transient voltage.
Switch (Output): Emitter of NPN output switch. Connect to external storage
inductor and Schottky diode.
Feedback (Input): Connect to output on fixed output voltage versions, or to
1.23V-tap of voltage-divider network for adjustable version.
Ground
1
2
3
4
Adjustable
Voltage
SOP-8 (M)
2
Temperature Range
–40°C to +125°C
8 GND
7
6
5
GND
GND
GND
8-lead SOP
Package
April 2005
Micrel