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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 120MA 20QFN
- Series：-
- Mfr：Semtech Corporation
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：4
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：27V
- Voltage - Output：50V
- Current - Output / Channel：120mA
- Frequency：-
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The SC5014MLTRT is a high-efficiency, four-channel step-up (boost) HB LED driver designed for mid-size LCD display backlighting. It features a wide input voltage range of 4.5V to 27V and supports output voltages up to 50V. The device includes phase-shifted PWM dimming, analog dimming, and an I2C interface for control. Key electrical specifications include a switching frequency range of 100kHz to 300kHz, linear current sinks with ±2% accuracy, and ultra-fast transient response under 100μs. It is housed in a 4mm x 4mm 20-pin QFN package.
Feature Summary
- Four-channel boost topology with flexible output configuration for multi-string LED arrays
- Phase-shifted PWM dimming capability with user-selectable resolution and string-by-string shifting
- Integrated I2C interface for device control and fault status monitoring
- Comprehensive protection mechanisms including open/short LED detection, over-temperature shutdown, and UVLO
Applications
- Ultrabook display backlighting
- All-in-One PC monitor backlighting
- Desktop monitor backlighting
- Automotive display backlighting
- Mid-size LCD display illumination
Procurement Notes
Verify the specific suffix MLTRT against the manufacturer's official documentation to confirm package type and reel quantity. Ensure compatibility with I2C bus voltage levels and check for any regional distribution restrictions or lifecycle status changes prior to finalizing procurement plans.
Selection Notes
Select this component when designing systems requiring independent channel control via I2C and phase-shifted dimming to reduce EMI. Consider the 4.5V to 27V input range and 50V output capability for applications needing higher voltage strings from lower supply rails. Evaluate thermal performance within the 4x4mm QFN footprint for space-constrained designs.
Part Context
The SC5014MLTRT belongs to the Semtech SC50xx series of high-efficiency LED drivers. This family focuses on reducing display thickness through integrated power management and precise current regulation. It complements other variants like the SC5012 and SC5014A, offering specific channel counts and dimming interfaces tailored for different display size requirements.
Replacement Considerations
Consult official substitution lists for equivalent Semtech models such as the SC5012QMLTRT or SC5014A if pinout and functional compatibility are verified. Cross-reference datasheets to ensure matching input/output voltage ranges and dimming control methods before replacing.
