SC5014AMLTRT LED Driver IC Equivalent & Substitute Parts

Part Overview

The SC5014AMLTRT is a LED Driver IC manufactured by Semtech, designed as a 2-output DC-DC regulator with step-up (boost) topology for backlight applications. This device features analog and PWM dimming capability with 240mA output current per channel and operates across a 4.5V to 27V supply range, delivering up to 50V output voltage in a 20-QFN (4x4) surface mount package.

The SC5014AMLTRT carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Substiute Parts

SC5014AMLTRT

SemtechIn Stock: 931SC5014AMLTRT Datasheet

Current PartRFQ

LM3509SD/NOPB

Texas InstrumentsIn Stock: 2644LM3509SD/NOPB Datasheet

MFR RecommendedRFQ

LM3554TME/NOPB

Texas InstrumentsIn Stock: 6183LM3554TME/NOPB Datasheet

MFR RecommendedRFQ

LP8862QPWPRQ1

Texas InstrumentsIn Stock: 923LP8862QPWPRQ1 Datasheet

MFR RecommendedRFQ

LT3909IDD#TRPBF

Analog Devices Inc.In Stock: 958LT3909IDD#TRPBF Datasheet

MFR RecommendedRFQ

MAX77387EWP+T

Analog Devices Inc./Maxim IntegratedIn Stock: 22913MAX77387EWP+T Datasheet

MFR RecommendedRFQ

MP3312LGC-P

Monolithic Power Systems Inc.In Stock: 1052MP3312LGC-P Datasheet

MFR RecommendedRFQ

MP3336GC-Z

Monolithic Power Systems Inc.In Stock: 74341MP3336GC-Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC5014AMLTRT are selected based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Topology: Step-Up (Boost) DC-DC regulator
• Number of Outputs: 2 channels
• Dimming Control: Analog and/or PWM capability
• Supply Voltage Range: Minimum 4.5V input support
• Output Voltage: Capability to reach 50V or higher
• Current Rating: 240mA or greater per channel
• Applications: Backlight or equivalent LED driver use
• Mounting: Surface mount package

The substitute parts listed below meet these core electrical and mechanical requirements, though individual specifications vary in frequency, temperature range, package form factor, and product status. Selection should prioritize active product status and compliance certifications for new production requirements.

Parameter Comparison

Engineering Selection Recommendations

LP8862QPWPRQ1 (Texas Instruments) is the closest functional equivalent for backlight applications. It maintains the 4.5V minimum supply voltage, supports PWM dimming, and delivers 160mA per channel across dual outputs. Output voltage reaches 45V, approaching the SC5014AMLTRT specification. This part carries active product status and ROHS3 compliance with automotive qualification (AEC-Q100), making it suitable for production environments requiring long-term availability.

LT3909IDD#TRPBF (Analog Devices Inc.) offers dual-output boost regulation with analog and PWM dimming across a 2.9V to 40V supply range. While output current is limited to 50mA per channel, this device supports 40V output voltage and carries active status with automotive qualification. Operating temperature range extends to 125°C, providing thermal margin for demanding applications.

MAX77387EWP+T (Analog Devices Inc./Maxim Integrated) provides 1A flash current capability with dual outputs and analog/PWM dimming control. Supply range is 2.5V to 5.5V with 4MHz switching frequency. This part is optimized for camera flash applications but maintains active product status and ROHS3 compliance.

MP3336GC-Z (Monolithic Power Systems Inc.) delivers 2A per channel with dual outputs, I2C and PWM dimming, and 1MHz switching frequency. Supply range is 2.7V to 5.5V with 5V output voltage. This device carries active status and ROHS3 compliance with unlimited moisture sensitivity rating.

LM3554TME/NOPB (Texas Instruments) is optimized for camera flash with 600mA flash current, dual outputs, and I2C dimming. Supply range is 2.5V to 5.5V. This part carries active status and ROHS3 compliance.

Parts with active product status are preferred for new production designs. Compliance certifications (ROHS3, REACH Unaffected) ensure regulatory alignment. Selection should account for specific application requirements regarding output voltage, current per channel, dimming protocol, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can LP8862QPWPRQ1 directly replace SC5014AMLTRT in existing designs?

A: LP8862QPWPRQ1 is functionally compatible for backlight applications requiring dual-output boost regulation with PWM dimming. Both devices support 4.5V minimum input and deliver comparable output voltage (45V vs. 50V). However, LP8862QPWPRQ1 provides 160mA per channel versus 240mA on the SC5014AMLTRT. PCB layout and thermal management may require adjustment due to different package form factors (20-HTSSOP vs. 20-QFN). Firmware or control logic modifications are not required if PWM dimming is the primary control method.

Q: What is the key difference between PWM and I2C dimming options?

A: PWM dimming uses pulse-width modulation on a control pin to adjust LED brightness, requiring only a GPIO output from the host controller. I2C dimming uses serial communication protocol for brightness adjustment, requiring I2C bus implementation. SC5014AMLTRT supports both analog and PWM dimming. Substitute parts like LM3554TME/NOPB and MP3336GC-Z use I2C protocol, which may require firmware changes if the original design uses PWM-only control.

Q: Why do some substitutes have lower current ratings than SC5014AMLTRT?

A: LED driver ICs are optimized for specific application classes. LT3909IDD#TRPBF (50mA) targets low-power indicator applications, while SC5014AMLTRT (240mA) targets higher-brightness backlight use. Current rating directly impacts maximum LED brightness and power delivery capability. Selection must match the target application's current requirements.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts carry ROHS3 compliance status, meeting current environmental regulations. SC5014AMLTRT carries RoHS Compliant status. Both certifications satisfy RoHS Directive requirements for new component procurement.

Q: What package considerations apply when substituting parts?

A: SC5014AMLTRT uses 20-QFN (4x4) package. Substitutes use different packages: LP8862QPWPRQ1 (20-HTSSOP), LM3554TME/NOPB (16-DSBGA), LT3909IDD#TRPBF (12-DFN), MAX77387EWP+T (20-WLP), and MP3336GC-Z (20-WLCSP). Package differences affect PCB footprint, thermal characteristics, and board layout. Existing PCB designs require layout modifications to accommodate different pin configurations and thermal pad sizes.

Q: Which substitute is best for automotive applications?

A: LP8862QPWPRQ1 and LT3909IDD#TRPBF both carry automotive qualification (AEC-Q100 grade). LP8862QPWPRQ1 is recommended for backlight applications, while LT3909IDD#TRPBF suits lower-current automotive indicator applications. Both support extended operating temperature ranges (-40°C to 125°C) required for automotive environments.

Q: Can I use MP3336GC-Z as a substitute if my design requires 50V output?

A: No. MP3336GC-Z is specified for 5V output voltage, making it unsuitable for applications requiring 50V output. LP8862QPWPRQ1 (45V) or LT3909IDD#TRPBF (40V) are more appropriate for high-voltage output requirements, though neither reaches the full 50V specification of SC5014AMLTRT.