CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Voltage Regulators - DC DC Switching Regulators

PRODUCT DATASHEET

ChipNobo MPN

NB5973D

GLOBAL BRAND CROSS-REFERENCE

STMicroelectronics

IC REG BUCK ADJ 2A 8HSOP

B5973D

  • High-reliability design
  • Long-term stable supply
  • RoHS compliant
IC REG BUCK ADJ 2A 8HSOP

1. PRODUCT POSITIONING

NB5973D is a product identity corresponding to the reference product B5973D. 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 STMicroelectronics B5973D ChipNobo NB5973D Match
Part Status Active Active ✓
Mounting Type Surface Mount Surface Mount ✓
Number of Outputs 1 1 ✓
Output Configuration Positive Positive ✓
Output Type Adjustable Adjustable ✓
Grade Automotive Automotive ✓
Synchronous Rectifier No No ✓
Voltage - Output (Min/Fixed) 1.235V 1.235V ✓
Voltage - Input (Min) 4V 4V ✓
Function Step-Down Step-Down ✓
Topology Buck Buck ✓
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) ✓
Voltage - Output (Max) 35V 35V ✓
Qualification AEC-Q100 AEC-Q100 ✓
Voltage - Input (Max) 36V 36V ✓
Current - Output 2A 2A ✓
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad 8-SOIC (0.154", 3.90mm Width) Exposed Pad ✓
Supplier Device Package 8-HSOP 8-HSOP ✓
Frequency - Switching 250kHz 250kHz ✓
RoHS Status ROHS3 Compliant ROHS3 Compliant ✓
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours) ✓

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Voltage Regulators - DC DC Switching Regulators

PRODUCT DATASHEET

3. SUPPLY & LIFECYCLE
ChipNobo Number NB5973D
Lifecycle status Active
NRND No
EOL No
PCN monitor No
Last buy date No Deadline
Alternate availability Sufficient
4. APPLICATION AREAS
ADAS Camera System Smart Cockpit
EV DC/DC Converter AI Server
GPU Server VRM Module
5G Base Station Optical Module
Network Switch PLC Controller
Smartphone Energy Storage System (ESS)

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 NB5973D.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB5973D】 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.