550khz/1.6mhz 1.5a Step-down Dc-dc Switching Regulator - National Semiconductor

The LM2738 Regulator is a monolithic, high frequency, PWM Step-down DC/DC converter in an 8-pin LLP or 8-pin eMSOP package. It provides all the active functions for local DC/DC conversion with fast transient response and accurate regula- tion in the smallest possible PCB area. With a minimum of external components, the LM2738 is easy to use. The ability to drive 1.5A loads with an internal 250m NMOS Switch using state-of-the-art 0.5m BiCMOS technology results in the best power density available. Switching frequency is internally set to 550kHz (LM2738Y) or 1.6MHz (LM2738X), allowing the use of extremely small sur- face mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External enable is included, featuring an ultra-low stand-by current of 400nA. The LM2738 utilizes cur- rent-mode control and internal compensation to provide high- performance regulation over a wide range of operating conditions. Additional features include internal soft-start cir- cuitry to reduce in-rush current, cycle-by-cycle current limit, thermal shutdown, and output over-voltage protection. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM2738YMYX/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-MSOP-PowerPAD -40 to 125
LM2738YSDX/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-WSON -40 to 125
LM2738XSD/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-WSON -40 to 125
LM2738XMYX/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-MSOP-PowerPAD -40 to 125
LM2738YSD/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-WSON -40 to 125
LM2738XSDX/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-WSON -40 to 125
LM2738YMY/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-MSOP-PowerPAD -40 to 125
LM2738XMY/NOPB Texas Instruments 550kHz/1.6MHz 1.5A Step-Down DC-DC Switching Regulator 8-MSOP-PowerPAD -40 to 125
LM2738 's PackagesLM2738 's pdf datasheet



LM2738 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
LM2738 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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