PAM2863ECR-B LED Driver IC Equivalent & Substitute Parts

Part Overview

The PAM2863ECR-B is a LED Driver IC manufactured by Diodes Incorporated, designed as a single-output DC-DC step-down (buck) regulator with integrated PWM and analog dimming capabilities. This component is classified as a Power Management PMIC and is specifically engineered for LED lighting driver applications, including camera flash systems.

The PAM2863ECR-B is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this topology and performance envelope.

Substiute Parts

PAM2863ECR-B

Diodes IncorporatedIn Stock: 828PAM2863ECR-B Datasheet

Current PartRFQ

PAM2863ECR

Diodes IncorporatedIn Stock: 125419PAM2863ECR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PAM2863ECR-B is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Topology: Step-Down (Buck) DC-DC Regulator
• Number of Outputs: Single output configuration
• Internal Switch: Integrated power switch required
• Supply Voltage Range: 4.5V to 40V input capability
• Output Current: 2A per channel minimum
• Switching Frequency: 233kHz to 1MHz operating range
• Dimming Control: Analog and PWM dimming support
• Operating Temperature: -40°C to 85°C (TA)
• Mounting: Surface mount technology
• Package: 8-pin SOIC with exposed pad

Manufacturer Recommended Substitute:

The PAM2863ECR from Diodes Incorporated is the direct manufacturer-recommended substitute. This part maintains identical electrical specifications and package configuration while offering active product status and improved supply availability.

Cross-Manufacturer Alternatives:

Additional substitute parts from the provided list include LT3517EFE#PBF, IS31LT3350-V1SDLS2-TR, LM3565TLX/NOPB, TPS61165DRVR, and TS19376CY5 RMG. These alternatives satisfy the core functional requirements of single-output buck regulation with PWM/analog dimming capability within the specified voltage and current parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PAM2863ECR

The PAM2863ECR is the preferred substitute for the obsolete PAM2863ECR-B. This part is manufactured by Diodes Incorporated and maintains complete electrical and mechanical compatibility. The PAM2863ECR carries active product status, ensuring long-term availability and supply chain stability. Both parts are ROHS3 compliant and operate within identical parameter specifications. The PAM2863ECR is available in significantly higher quantities (125400 units) compared to the obsolete variant, supporting both new designs and production continuity.

Compliance and Certification:

The PAM2863ECR maintains ROHS3 compliance and carries EAR99 ECCN classification. The part is REACH unaffected and carries HTSUS code 8542.39.0001. Moisture sensitivity level is rated at MSL 3 (168 Hours), requiring standard handling and storage protocols.

Cross-Manufacturer Alternatives:

When PAM2863ECR availability is constrained, cross-manufacturer alternatives satisfying the core parameter set include LT3517EFE#PBF, IS31LT3350-V1SDLS2-TR, LM3565TLX/NOPB, TPS61165DRVR, and TS19376CY5 RMG. Selection of these alternatives requires verification that application-specific requirements align with each part's detailed electrical characteristics and package pinout configuration.

Frequently Asked Questions (FAQ)

Q: Why is the PAM2863ECR-B listed as obsolete?

A: The PAM2863ECR-B has reached end-of-life status. The manufacturer recommends transitioning to the PAM2863ECR, which maintains identical specifications and package configuration while offering active product status and improved supply availability.

Q: Is the PAM2863ECR a direct pin-for-pin replacement?

A: Yes. The PAM2863ECR is electrically and mechanically compatible with the PAM2863ECR-B. Both parts use the 8-SO-EP package and maintain identical pinout, voltage specifications, current ratings, and dimming control architecture.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: single-output buck topology, 4.5V to 40V input range, 2A output current capability, 233kHz to 1MHz switching frequency, analog and PWM dimming support, -40°C to 85°C operating temperature range, and 8-pin SOIC surface-mount package with exposed pad.

Q: Can cross-manufacturer parts replace the PAM2863ECR-B?

A: Cross-manufacturer alternatives (LT3517EFE#PBF, IS31LT3350-V1SDLS2-TR, LM3565TLX/NOPB, TPS61165DRVR, TS19376CY5 RMG) satisfy the core functional requirements of single-output buck regulation with PWM/analog dimming. However, detailed pinout, control signal architecture, and application-specific performance characteristics must be evaluated for each alternative.

Q: What is the moisture sensitivity level for the PAM2863ECR?

A: The PAM2863ECR carries MSL 3 rating (168 Hours). Standard moisture control and handling procedures are required during storage, transportation, and assembly operations.

Q: Are both the PAM2863ECR-B and PAM2863ECR ROHS3 compliant?

A: Yes. Both parts are ROHS3 compliant and suitable for applications requiring lead-free and restricted substance compliance.

Q: What is the primary advantage of transitioning to the PAM2863ECR?

A: The PAM2863ECR offers active product status, ensuring long-term manufacturer support and supply chain availability. Inventory levels are significantly higher (125400 units versus 744 units), supporting both new production and design continuity requirements.