- Sierra IC Inc. will be closed for the holiday season from December 20, 2025 through January 4, 2026, and will resume normal business operations on January 5, 2026.    

 

Sierra IC Inc., a global independent distributor, specializes in integrated circuits, active and passive components, connectors, and discrete electromechanical parts.

Products UnCategorized DC-to-DC-Controller Sierra IC Catalog Page 12

Part Number Manufacturer
Page 12 of 74
LM1771UMM-NOPB
Low-Voltage Synchronous Buck Controller withPrecision Enable and No External Compensation
National-Semiconductor
LM1771UMMX
DC DC Cntrlr Single-OUT Sync Buck 2.8V to 5.5V 8-Pin MSOP T/R
National-Semiconductor
LM1771UMMX-NOPB
CTLR SYNC BUCK 2000NS 8 PIN MSOP
National-Semiconductor
LM1771USD
DC DC Cntrlr Single-OUT Sync Buck 2.8V to 5.5V 6-Pin LLP EP T/R
National-Semiconductor
LM1771USD-NOPB
CTRLR SYNC BUCK 2000NS 6-LLP
National-Semiconductor
LM1771USD-NOPB-BKN
DC-to-DC-Controller
National-Semiconductor
LM25085MME-NOPB
DC DC Cntrlr Single-OUT Buck 4.5V to 42V 8-Pin MSOP T/R
National-Semiconductor
LM25085MM-NOPB
WIDE VOLTAGE COT PFET BUCK CNT
National-Semiconductor
LM25085MMX-NOPB
WIDE VOLTAGE COT PFET BUCK CNT
National-Semiconductor
LM25085MYE-NOPB
42V Constant On-Time PFET Buck Switching Controller
National-Semiconductor
LM25085MY-NOPB
WIDE VOLTAGE COT PFET BUCK CNT
National-Semiconductor
LM25085MYX-NOPB
WIDE VOLTAGE COT PFET BUCK CNT
National-Semiconductor
LM25085SDE-NOPB
INTEGRATED CIRCUIT BUCK ADJ 8LLP
National-Semiconductor
LM25088MH-1-NOPB
42V Non-Synchronous Buck Controller in a 16 Pin TSSOP EXP PAD Package
National-Semiconductor
LM25088MH-2-NOPB
42V Non-Synchronous Buck Controller in a 16 Pin TSSOP EXP PAD Package
National-Semiconductor

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SIERRA IC, INC.
16151 Lancaster Hwy
Charlotte NC 28277

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