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LM2746MXA/NOPB

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LM2746MXA/NOPB

SWITCHING REGULATOR/CONTROLLER

Manufacturer: National Semiconductor

Categories: DC DC Switching Controllers

Quality Control: Learn More

The National Semiconductor LM2746MXA-NOPB is a high-performance, positive output, step-down DC-DC controller IC. This buck regulator features a transistor driver output and operates from a 3V to 5.5V supply. Its switching frequency is adjustable from 50kHz to 1MHz, with a maximum duty cycle of 80%. The device integrates essential control features including current limit, enable, frequency control, power good, soft start, and tracking. It supports synchronous rectification for improved efficiency. The LM2746MXA-NOPB is housed in a 14-HTSSOP package suitable for surface mounting and operates within an ambient temperature range of -40°C to 125°C (TJ). This component finds application in power management solutions for various industries including telecommunications, industrial automation, and consumer electronics.

Additional Information

Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / Case14-PowerTSSOP (0.173"", 4.40mm Width)
Output TypeTransistor Driver
Mounting TypeSurface Mount
FunctionStep-Down
Operating Temperature-40°C ~ 125°C (TJ)
Output ConfigurationPositive
Frequency - Switching50kHz ~ 1MHz
TopologyBuck
Voltage - Supply (Vcc/Vdd)3V ~ 5.5V
Supplier Device Package14-HTSSOP
Synchronous RectifierYes
Control FeaturesCurrent Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Serial Interfaces-
Output Phases1
Duty Cycle (Max)80%
Clock SyncNo
Number of Outputs1

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