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LM201/2xx Synchronous Buck Regulators

Integrated Features Enable Optimization of Power Solutions

National Semiconductor Image National Semiconductor's new family of full-featured synchronous buck regulators provides high efficient DC-DC power conversion for point-of-load applications. The family offers a full range of features and options enabling the designer to fully customize their power solution to meet system needs. When powering multiple point-of-loads, a combination of appropriate devices can be chosen based upon the features to create a small, efficient, and complete solution with minimal external components or circuitry. The LM201XX devices (eTSSOP-16 package) have a VIN range from 2.95V to 5.5V and supports up to 5A loads. The LM20242 device (eTSSOP-20 package) has a VIN range from 4.5V to 36V and supports up to 2A loads.

Buck Regulator VIN(V) IOUT(A) SYNC IN Frequency Adjust SYNC OUT Frequency Package  
LM20123MH-ND 2.95 to 5.5 3 - - - 1.5MHz 16-TSSOP Datasheet
LM20133MH-ND 2.95 to 5.5 3 Check mark - - Sync 16-TSSOP Datasheet
LM20143MH-ND 2.95 to 5.5 3 - Check mark - 500kHz - 1.5MHz 16-TSSOP Datasheet
LM20124MH-ND 2.95 to 5.5 4 - - - 1MHz 16-TSSOP Datasheet
LM20134MH-ND 2.95 to 5.5 4 Check mark - - Sync 16-TSSOP Datasheet
LM20144MH-ND 2.95 to 5.5 4 - Check mark - 500kHz - 1.5MHz 16-TSSOP Datasheet
LM20154MH-ND 2.95 to 5.5 4 - - Check mark 1MHz 16-TSSOP Datasheet
LM20125MH-ND 2.95 to 5.5 5 - - - 500kHz 16-TSSOP Datasheet
LM20145MH-ND 2.95 to 5.5 5 - Check mark - 250kHz - 750kHz 16-TSSOP Datasheet
LM20242MH-ND 4.5 to 36 2 - Check mark - 250kHz - 750kHz 20-TSSOP Datasheet
Key Features
  Fixed and adjustable frequency options
  Clock synchronization in and out options
Standard Features
  External soft-start
  Tracking
  Precision enable
  Power good
  Pre-biased start-up
  Enhanced system reliability
      ° High accuracy current limit
      ° Over-voltage protection, under voltage lockout, and over-current protection
  Available in eTSSOP-16 packaging
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