LM2501x Regulator with Integrated MOSFETs

TI's 48 V synchronous step-down regulators with integrated high-side and low-side MOSFETs

Image of Texas Instruments' LM2501x Regulator with Integrated MOSFETs

Texas Instruments' LM25017 (650 mA), LM25018 (325 mA), and LM25019 (100 mA) are 48 V synchronous step-down regulators with integrated high-side and low-side MOSFETs. The constant-on-time (COT) control scheme employed in the LM2501x requires no loop compensation, provides excellent transient response, and enables very-low step-down ratios. The on-time varies inversely with the input voltage, resulting in nearly constant frequency over the input voltage range. A high-voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.

A peak current-limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed. Other protection features include thermal shutdown and bias-supply undervoltage lockout.

LM25017 Regulator with Integrated MOSFETs
ImageManufacturer Part NumberDescriptionAvailable QuantityBuy Now
IC REG BUCK ADJ 0.65A SYNC 8WSONLM25017SDE/NOPBIC REG BUCK ADJ 0.65A SYNC 8WSON821 - Immediate
10000 - Factory Stock
IC REG BUCK ADJ 0.65A 8SOPWRPADLM25017MR/NOPBIC REG BUCK ADJ 0.65A 8SOPWRPAD73 - Immediate
LM2501x Regulator with Integrated MOSFETs
ImageManufacturer Part NumberDescriptionAvailable QuantityBuy Now
IC REG BUCK ADJ 325MA 8SOPWRPADLM25018MR/NOPBIC REG BUCK ADJ 325MA 8SOPWRPAD171 - Immediate
2755 - Factory Stock
IC REG BUCK ADJ 325MA SYNC 8WSONLM25018SDE/NOPBIC REG BUCK ADJ 325MA SYNC 8WSON0
LM25019 Regulator with Integrated MOSFETs
ImageManufacturer Part NumberDescriptionAvailable QuantityBuy Now
IC REG BUCK ADJ 0.1A SYNC 8WSONLM25019SDE/NOPBIC REG BUCK ADJ 0.1A SYNC 8WSON440 - Immediate
3000 - Factory Stock
IC REG BUCK ADJ 0.1A 8SOPWRPADLM25019MR/NOPBIC REG BUCK ADJ 0.1A 8SOPWRPAD151 - Immediate
1995 - Factory Stock
Published: 2013-08-20