SP6683ER-L LED Driver IC Equivalent & Substitute Parts

Part Overview

The SP6683ER-L is a LED Driver IC manufactured by MaxLinear, Inc., designed for single-output DC-DC regulation with switched capacitor (charge pump) topology. This component delivers 200mA output current and operates across a 2.7V to 5.5V supply range, making it suitable for backlight and camera flash applications. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

SP6683ER-L

MaxLinear, Inc.In Stock: 26203SP6683ER-L Datasheet

Current PartRFQ

SP6699EK-L/TR

MaxLinear, Inc.In Stock: 15509SP6699EK-L/TR Datasheet

MFR RecommendedRFQ

HV9967BK7-G

Microchip TechnologyIn Stock: 1432HV9967BK7-G Datasheet

MFR RecommendedRFQ

LED6000PHTR

STMicroelectronicsIn Stock: 45333LED6000PHTR Datasheet

MFR RecommendedRFQ

LM3410YQMF/NOPB

Texas InstrumentsIn Stock: 60242LM3410YQMF/NOPB Datasheet

MFR RecommendedRFQ

LT3954EUHE#PBF

Analog Devices Inc.In Stock: 1400LT3954EUHE#PBF Datasheet

MFR RecommendedRFQ

MP1518DG-LF-Z

Monolithic Power Systems Inc.In Stock: 35119MP1518DG-LF-Z Datasheet

MFR RecommendedRFQ

RT9361BGE

Richtek USA Inc.In Stock: 3010RT9361BGE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP6683ER-L is determined by the following critical parameters:

• Topology: Switched Capacitor (Charge Pump) topology enables voltage conversion without inductors, essential for compact form factors
• Supply Voltage Range: 2.7V to 5.5V input compatibility
• Output Current: 200mA minimum capability
• Dimming Control: PWM dimming functionality
• Operating Temperature: -40°C to 85°C minimum range
• Package Type: Surface mount with exposed pad configuration
• Applications: Backlight and camera flash compatibility

Substitute parts are grouped based on topology compatibility and electrical parameter alignment. Parts with identical or superior specifications in these key areas are considered functionally equivalent for replacement purposes.

Parameter Comparison

Engineering Selection Recommendations

RT9361BGE is the primary substitute for SP6683ER-L. Both components utilize switched capacitor (charge pump) topology, operate within overlapping supply voltage ranges (2.8V to 4.5V for RT9361BGE versus 2.7V to 5.5V for SP6683ER-L), and support PWM dimming. RT9361BGE is active product status with ROHS3 compliance and MSL 1 rating, providing long-term availability and manufacturing consistency.

MP1518DG-LF-Z serves as an alternative for applications requiring step-up (boost) topology with extended output voltage capability. This part operates from 2.5V to 6V input, delivers 350mA output current, and maintains PWM dimming functionality. Active product status and ROHS3 compliance ensure supply chain continuity.

LM3410YQMF/NOPB is suitable for designs requiring SEPIC or step-up (boost) topology with higher output current (2.8A switch current). This Texas Instruments component operates from 2.7V to 5.5V, matching the original supply range, and includes AEC-Q100 automotive qualification. Active product status and MSL 1 rating support production requirements.

SP6699EK-L/TR represents a MaxLinear alternative with step-up (boost) topology, though it is classified as obsolete. This part extends supply voltage range to 16V and increases output current to 500mA, suitable for applications requiring higher voltage flexibility.

HV9967BK7-G, LED6000PHTR, and LT3954EUHE#PBF are topology variants (step-down buck or multi-topology) with active product status and extended operating temperature ranges. These parts accommodate higher supply voltages and output currents but require circuit topology redesign and are suitable only for applications where topology flexibility is acceptable.

Frequently Asked Questions (FAQ)

Q: Can RT9361BGE directly replace SP6683ER-L without circuit modification?

A: RT9361BGE shares identical switched capacitor (charge pump) topology and PWM dimming control with SP6683ER-L. However, RT9361BGE operates within a narrower supply voltage range (2.8V to 4.5V) compared to SP6683ER-L (2.7V to 5.5V). Direct replacement is valid only if the application supply voltage remains within 2.8V to 4.5V. Output voltage is fixed at 4.5V for RT9361BGE, whereas SP6683ER-L output voltage is not specified. Verify output voltage requirements before substitution.

Q: What is the difference between switched capacitor (charge pump) and step-up (boost) topology?

A: Switched capacitor topology uses capacitors and switches to transfer charge and regulate voltage without inductors, resulting in compact form factors suitable for low-current applications. Step-up (boost) topology uses an inductor to store and transfer energy, enabling higher output currents and wider voltage conversion ratios. Topology selection depends on application current requirements, PCB space constraints, and output voltage specifications.

Q: Is MP1518DG-LF-Z compatible with SP6683ER-L applications?

A: MP1518DG-LF-Z uses step-up (boost) topology rather than switched capacitor topology. While both support PWM dimming and operate from similar low supply voltages (2.5V to 6V for MP1518DG-LF-Z), the topology difference requires circuit redesign. MP1518DG-LF-Z is suitable for applications requiring higher output current (350mA) and fixed 25V output voltage. Compatibility depends on application circuit topology and output voltage requirements.

Q: Why is LM3410YQMF/NOPB recommended despite different topology?

A: LM3410YQMF/NOPB combines SEPIC and step-up (boost) topology, enabling flexible voltage conversion from 2.7V to 5.5V input range matching SP6683ER-L. This part delivers 2.8A switch current, supporting higher output power requirements. Active product status, AEC-Q100 automotive qualification, and MSL 1 rating ensure long-term availability and manufacturing reliability. Substitution requires circuit topology evaluation but provides superior performance headroom for demanding applications.

Q: What packaging considerations apply when substituting SP6683ER-L?

A: SP6683ER-L uses 10-VFDFN (3x3) package. RT9361BGE uses SOT-23-6 package, significantly smaller and suitable for space-constrained designs. MP1518DG-LF-Z uses 8-TFDFN (2x2) package, also compact. LM3410YQMF/NOPB uses SOT-23-5 package. Package differences require PCB layout redesign, including trace routing, thermal management, and component placement. Verify PCB space availability and thermal requirements before package substitution.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed (HV9967BK7-G, LED6000PHTR, LM3410YQMF/NOPB, LT3954EUHE#PBF, MP1518DG-LF-Z, RT9361BGE) are ROHS3 compliant. Obsolete parts SP6699EK-L/TR and SP6683ER-L do not specify RoHS status. For new designs and production requiring RoHS compliance, select only active product status parts with explicit ROHS3 compliance certification.

Q: What is the significance of Moisture Sensitivity Level (MSL) rating?

A: MSL 1 (unlimited) indicates the component tolerates unlimited shelf life without moisture absorption precautions. MSL 3 (168 hours) requires moisture control during storage and handling, with a 168-hour floor life limit after package opening. SP6683ER-L, LM3410YQMF/NOPB, LT3954EUHE#PBF, and MP1518DG-LF-Z carry MSL 1 rating, simplifying supply chain management. RT9361BGE, SP6699EK-L/TR, and LED6000PHTR carry MSL 3 rating, requiring controlled storage conditions.