CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

DC DC Switching Controllers

PRODUCT DATASHEET

ChipNobo MPN

NB5143RHAR

GLOBAL BRAND CROSS-REFERENCE

Texas Instruments

3.5-V TO 65-V LOW-IQ, DUAL OUTPU

LM5143RHAR

  • High-reliability design
  • Long-term stable supply
  • RoHS compliant
3.5-V TO 65-V LOW-IQ, DUAL OUTPU

1. PRODUCT POSITIONING

NB5143RHAR is a product identity corresponding to the reference product LM5143RHAR. This document presents the available product specifications, mechanical/package information and compatibility summary for engineering and procurement reference.

This document is a product information. Compatibility conclusions should be read together with the applicable Cross-Reference Identification (CID) rule, package/pin verification and engineering review record.

2. TECHNICAL SPECIFICATION COMPARISON (core parameters)
Parameter Texas Instruments LM5143RHAR ChipNobo NB5143RHAR Match
Part Status Active Active ✓
Mounting Type Surface Mount Surface Mount ✓
Output Configuration Positive Positive ✓
Number of Outputs 2 2 ✓
Output Type Transistor Driver Transistor Driver ✓
Function Step-Down Step-Down ✓
Topology Buck Buck ✓
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) ✓
Clock Sync Yes Yes ✓
Synchronous Rectifier Yes Yes ✓
Duty Cycle (Max) 100% 100% ✓
Output Phases 2 2 ✓
Package / Case 40-VFQFN Exposed Pad 40-VFQFN Exposed Pad ✓
Supplier Device Package 40-VQFN (6x6) 40-VQFN (6x6) ✓
Control Features Current Limit Enable Frequency Control Phase Control Power Good Soft Start Current Limit Enable Frequency Control Phase Control Power Good Soft Start ✓
Frequency - Switching 100kHz ~ 2.2MHz 100kHz ~ 2.2MHz ✓
Voltage - Supply (Vcc/Vdd) 3.5V ~ 65V 3.5V ~ 65V ✓
RoHS Status ROHS3 Compliant ROHS3 Compliant ✓
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours) ✓

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

DC DC Switching Controllers

PRODUCT DATASHEET

3. SUPPLY & LIFECYCLE
ChipNobo Number NB5143RHAR
Lifecycle status Active
NRND No
EOL No
PCN monitor No
Last buy date No Deadline
Alternate availability Sufficient
4. APPLICATION AREAS
EV DC/DC Converter On-Board Charger (OBC)
Server PSU 48V Power Shelf
VRM Module AI Server
GPU Server Telecom Power System
5G Base Station Solar Inverter
Energy Storage System (ESS) Industrial UPS

5. ENGINEERING & COMMERCIAL NOTES

  • The ChipNobo MPN is the public product identity used by ChipNobo for this replacement reference.
  • The original manufacturer and original MPN are retained as reference identity information.
  • Product PDF data are intended for engineering, procurement and supply-continuity reference.
  • Current price, MOQ, lead time, available supply source and regional availability should be confirmed through RFQ.
  • For customer-specific qualification, PCB footprint approval, reliability requirements or design-in approval, the customer should perform the applicable validation process.

CHIPNOBO REPLACEMENT · Semiconductor Replacement Engineering & Supply Continuity Partner

Document purpose: Product Information / Replacement Reference · Generated from the product data supplied for NB5143RHAR.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB5143RHAR】 Revision: 1.0 Status: Released

The information provided by ChipNobo is intended solely for engineering evaluation, product selection, procurement, and supply continuity reference purposes. Product specifications, lifecycle status, availability, and other information are subject to change without notice. Customers should always verify relevant information against the latest official documentation published by the respective manufacturers.

Cross-reference and replacement recommendations are provided for engineering reference purposes only. They do not constitute a guarantee of pin-to-pin compatibility, interchangeability, or suitability for any particular application. Customers are responsible for conducting all necessary engineering reviews, testing, and qualification prior to product selection and use.

Manufacturer names, trademarks, and part numbers are referenced solely for product identification purposes. Their use does not imply any affiliation with, endorsement by, or authorization from the respective manufacturers, unless expressly stated otherwise.

To the maximum extent permitted by applicable law, ChipNobo makes no warranties, express or implied, regarding the completeness, accuracy, or suitability of the information provided and shall not be liable for any loss or damage arising from its use or reliance, except as otherwise expressly agreed in writing and subject to applicable law.