4a 500 Khz / 1 Mhz Powerwise?砓ynchronous Simple Switcher?砂uck Regulator - National Semiconductor

The LM2854 PowerWise SIMPLE SWITCHER buck regu- lator is a 500 kHz or 1 MHz Step-down switching voltage Regulator capable of driving up to a 4A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LM2854 CAN accept an input voltage rail between 2.95V and 5.5V and deliver an adjustable and highly accurate output voltage as low as 0.8V. Externally estab- lished soft-start with a small capacitor facilitates controlled start-up, and the LM2854 is capable of starting gracefully into a pre-biased output voltage. Partial internal compensation re- duces the number of external passive components and PC board space typically necessary in a voltage mode buck con- verter application, yet preserving flexibility to deal with ce- ramic and/or electrolytic based load capacitors. Lossless cycle-by-cycle peak current limit is used to protect the load from an overcurrent or short-circuit fault, and an enable com- parator simplifies sequencing applications. The LM2854 is available in an exposed pad TSSOP-16 package that en- hances the thermal performance of the Regulator By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM2854MH-1000/NOPB Texas Instruments 4A 500 kHz / 1 MHz Synchronous Buck Regulator 16-HTSSOP -40 to 85
LM2854MHX-500/NOPB Texas Instruments 4A 500 kHz / 1 MHz Synchronous Buck Regulator 16-HTSSOP -40 to 85
LM2854MH-1000 Texas Instruments 4A 500 kHz / 1 MHz Synchronous Buck Regulator 16-HTSSOP -40 to 85
LM2854MHX-1000/NOPB Texas Instruments 4A 500 kHz / 1 MHz Synchronous Buck Regulator 16-HTSSOP -40 to 85
LM2854MH-500/NOPB Texas Instruments 4A 500 kHz / 1 MHz Synchronous Buck Regulator 16-HTSSOP -40 to 85
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LM2854 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
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