Micrel MIC2045
The MIC2045 features a auto-reset circuit breaker that latches the output OFF upon detecting an overcurrent condition lasting more than 32ms. The output is reset by removing or reducing the load. MIC2044/2045 Micrel MIC2044/2045 Single Channel, High Current, Low Voltage, Protected Power Distribution Switch General Description The MIC2044 and MIC2045 are high-side MOSFET switches optimized for general purpose power distribution applications that require circuit protection.| Part No. | MIC2045 |
|---|---|
| Datasheet | MIC2045 Download |
| Manufacturer |  Micrel |
| Description | Protected Power Distribution Switch |
| Buy | Stock & Price |
FEATURES
● 30mΩ maximum on-resistance● 0.8V to 5.5V operating range
● Adjustable current limit
● Up to 6A continuous output current
● Short circuit protection
● Very fast reaction to short circuits
● Thermal shutdown
● Adjustable slew-rate control
● Circuit breaker mode (MIC2045)
● Fault status flag
● Power-Good detection
● Undervoltage lockout
● No reverse current flow through the switching MOSFET when OFF or disabled
● Low quiescent current
APPLICATIONS
● Docking stations● LAN servers
● WAN switches
● Hot swap board insertions
● Notebook PCs
● PDAs
● Base stations
● RAID controllers
● USB hosts Typical Application +3.3V Power Supply OUT1 OUT2 4.7CmF3 IN LogicON/OFF Controller OVERCURRENT 0.1CmF1 20RkW1 0.022Cm4F* 0.1CmF2 MIC2044-1BTS 8 VBIAS 7, 11, 13, 16 VIN VOUT 9,12,14 PGREF 15 2 EN 3 /FAULT R4 20kW 4 SLEW PWRGD 1 R2924kW 1% R243.3kW 1% m CLOAD 33 F VOUT 3.3V@ 3.5A MIC39100-2.5BS IN 2.5V EN OUT 6 ILIM UVLOIN 5 (OPEN) GND R10S0ETW GND 10 Note: All VIN pins (7, 11, 13, 16) must be externally tied together.
