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Product Detailed Parameters
- Description：IC LED DRV RGLTR I2C 20MLPQ
- Series：mAhXLife™
- Mfr：Semtech Corporation
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：Yes
- Number of Outputs：5
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：2.5V ~ 5.25V
- Current - Output / Channel：25mA, 400mA (Flash)
- Frequency：-
- Dimming：I2C
- Applications：Backlight, Camera Flash
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-MLPQ-UT (3x3)
- Grade：-
- Qualification：-
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Overview
The SC621AULTRT is a high-efficiency LED lighting driver IC from the Semtech SC6 series, manufactured by Semtech Corporation. It utilizes a charge pump topology to drive LEDs with an output current of 500 mA across five channels. The device operates within an input voltage range of 3 V to 5.5 V and features a working frequency of 250 kHz. Maximum power supply current is 5.85 mA. It is housed in an MLPQ-UT-20 package (SMD/SMT) and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a charge pump topology for efficient LED driving
- Provides five independent output channels for multi-LED applications
- Supports serial data input interface for control signals
Applications
- LED lighting driver systems
- Portable electronic display backlighting
- Flash light circuits requiring 500 mA output
Procurement Notes
Verify component authenticity through authorized Semtech distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation prior to integration. Ensure ordering quantities align with factory reel specifications. Validate package marking and date codes against current production standards to guarantee reliability in final assembly processes.
Selection Notes
Select this component when a five-channel LED driver with 500 mA capability is required. The 3 V to 5.5 V input range suits single-cell battery applications. The MLPQ-UT-20 package offers a compact footprint suitable for space-constrained designs. Consider the 250 kHz switching frequency for EMI management in sensitive environments.
Part Context
Part of the Semtech SC6 series, which focuses on efficient power management solutions. This specific model targets LED illumination needs rather than general voltage regulation found in other SC6 variants like the SC630. It complements Semtech's portfolio of PMICs and circuit protection devices.
Replacement Considerations
SC622ULTRT: Offers similar charge pump functionality but includes additional LDO outputs and different interface characteristics.
