LP8340CLDX-ADJ/NOPB Equivalent & Substitute Parts

Part Overview

The LP8340CLDX-ADJ/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This device delivers 1A output current in a compact 6-WSON surface mount package and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity, production planning, and system maintenance. Substitute parts must maintain compatibility across key electrical parameters including output voltage range, current capacity, and thermal characteristics while accommodating different package formats.

Substiute Parts

LP8340CLDX-ADJ/NOPB

Texas InstrumentsIn Stock: 1003LP8340CLDX-ADJ/NOPB Datasheet

Current PartRFQ

BA00BC0WFP-E2

Rohm SemiconductorIn Stock: 44158BA00BC0WFP-E2 Datasheet

MFR RecommendedRFQ

LT1965EMS8E#PBF

Analog Devices Inc.In Stock: 5136LT1965EMS8E#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP8340CLDX-ADJ/NOPB are selected based on the following critical parameters that define functional equivalence:

• Output Configuration & Type: Positive adjustable output
• Current Capacity: Minimum 1A output current
• Voltage Range: Input maximum ≥10V; output adjustable range covering 1.25V to 9.3V
• Protection Features: Over current and over temperature protection
• Compliance: ROHS3 compliant
• Mounting Type: Surface mount technology

The two identified substitutes meet these core criteria while offering enhanced specifications in certain areas (higher input voltage ratings, improved quiescent current performance, or expanded operating temperature ranges). Package format differences require PCB layout evaluation during design transition.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with full ROHS3 compliance, providing long-term availability and supply chain stability compared to the obsolete LP8340CLDX-ADJ/NOPB.

BA00BC0WFP-E2 (Rohm Semiconductor): This substitute maintains electrical parity with the original part across output current (1A) and PSRR performance (55dB). It supports higher input voltage (16V maximum) and extended output voltage range (12V maximum). The TO-252-5 package is larger than the original 6-WSON, requiring PCB redesign. Operating temperature range is -40°C to 105°C, which covers the original 0°C to 125°C range partially. This option is suitable for applications where package size increase is acceptable and operating temperature does not exceed 105°C.

LT1965EMS8E#PBF (Analog Devices Inc.): This substitute provides enhanced specifications including higher output current (1.1A), superior PSRR (75dB), and extended input voltage rating (20V maximum). It includes reverse polarity protection beyond the original feature set. The 8-MSOP package differs from the original 6-WSON format. Operating temperature range extends to -40°C to 125°C, matching the upper limit of the original. This option is suitable for applications requiring enhanced performance margins and full temperature range coverage.

Both substitutes are available in high inventory quantities, supporting immediate procurement and production deployment.

Frequently Asked Questions (FAQ)

Q: Can BA00BC0WFP-E2 and LT1965EMS8E#PBF be used interchangeably with LP8340CLDX-ADJ/NOPB?

A: Both parts are functionally equivalent for positive adjustable linear regulation at 1A output current. However, they require different PCB layouts due to package format differences (TO-252-5 and 8-MSOP versus 6-WSON). Electrical compatibility is confirmed across the specified voltage and current parameters.

Q: What are the package format implications?

A: The original LP8340CLDX-ADJ/NOPB uses a 6-WSON (2.92x3.29mm) package. BA00BC0WFP-E2 uses TO-252-5 (DPAK), which is significantly larger and requires PCB redesign. LT1965EMS8E#PBF uses 8-MSOP, which is also larger than the original. Both substitutes necessitate layout modifications and thermal management re-evaluation.

Q: Are there temperature range limitations?

A: The original part operates from 0°C to 125°C. BA00BC0WFP-E2 operates from -40°C to 105°C, which does not cover the full upper temperature range of the original. LT1965EMS8E#PBF operates from -40°C to 125°C, fully covering the original range. Application temperature requirements should guide selection.

Q: What protection features do the substitutes provide?

A: All three parts include over current and over temperature protection. LT1965EMS8E#PBF adds reverse polarity protection, providing enhanced circuit protection compared to the original.

Q: How do quiescent current specifications compare?

A: The original LP8340CLDX-ADJ/NOPB has 100 µA quiescent current. BA00BC0WFP-E2 has 0.5 mA, and LT1965EMS8E#PBF has 1.1 mA. For battery-powered or low-power standby applications, the original part's lower quiescent current should be considered during selection.

Q: Are all parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant, meeting environmental and regulatory requirements for commercial and industrial applications.