Datasheet Microchip MIC4690
The MIC4690 SuperSwitcher™ is an easy-to-use, 500kHz step-down PWM voltage regulator
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MIC4690 Data Sheet
MIC4690 Micrel MIC4690
500kHz 1A SuperSwitcherв„ў Buck Regulator General Description Features The MIC4690 SuperSwitcherв„ў is an easy-to-use, 500kHz
step-down PWM voltage regulator. The MIC4690 achieves
over 1A of continuous output current over a wide input voltage
range in an 8-lead SO (small outline) package.
The high switching frequency of the MIC4690 allows the
smallest surface-mount inductors and capacitors to be used.
Internal compensation ensures fast transient response and a
minimum amount of external components.
The MIC4690 features a power SO-8 package with a special
lead frame that allows over 1A of continuous current. The
MIC4690, housed in an SO-8, can replace larger TO-220 and
TO-263 packages in many applications.
The MIC4690 allows for a high degree of safety. It has a wide
input voltage range of 4V to 34V, allowing for it to be used in
applications where input voltage transients may be present.
Built-in safety features include over-current protection, frequency foldback protection, and thermal shutdown.
The MIC4690 is available in an 8-lead SO package with a
junction temperature range of вЂ“40В°C to +125В°C. SO-8 package with over 1A output current
Fixed 500kHz operation
Wide 4V to 34Vinput voltage range
Output voltage adjustable to 1.23V
All surface mount solution ...
|Lifecycle Status||Production (Appropriate for new designs but newer alternatives may exist)||Production (Appropriate for new designs but newer alternatives may exist)|
|# of Outputs||1||1|
|Duty Cycle Max, %||0.93||0.93|
|Input Voltage Range, V||4 - 34||4 - 34|
|Light Load Efficiency Mode||No||No|
|Operating Temperature Range, °C||-40 to +125||-40 to +125|
|Output Current, mA) Max||1300||1300|
|Output Voltage Range, V||1.23||1.23|
|Quiescent Current, mA) type||7||7|
|Regulator Type||Step Down (Buck)||Step Down (Buck)|
|SHUTDOWN Current, µA||50||50|
|Switching Frequency, kHz||500||500|
- Power Management > Switching Regulators > Step Down up to 36V