LM3503SQX-44
IC LED DRV RGLTR PWM 16WQFNManufacturer: Texas Instruments
Categories: LED Drivers
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Texas Instruments LM3503SQX-44 is a dual-output DC-DC boost regulator designed for LED driving applications. This device integrates high-side N-channel MOSFETs, enabling efficient step-up regulation with an output voltage capability of 44V. The LM3503SQX-44 supports both analog and PWM dimming for precise control of LED brightness. Featuring an internal switch with a current rating of 750mA, it operates at a 1MHz switching frequency to minimize component size and improve power conversion efficiency. The regulator is housed in a compact 16-WFQFN exposed pad package (4x4mm) suitable for surface mounting. Operating within a supply voltage range of 2.5V to 5.5V and an ambient temperature range of -40°C to 85°C, this component is ideal for backlighting solutions in various electronic devices.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Download Free CAD Model:
Technical Details:
| Packaging | Tape & Reel (TR) |
| Package / Case | 16-WFQFN Exposed Pad |
| Voltage - Output | 44V |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Frequency | 1MHz |
| Type | DC DC Regulator |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Applications | Backlight |
| Current - Output / Channel | 750mA (Switch) |
| Internal Switch(s) | Yes |
| Topology | Step-Up (Boost) |
| Supplier Device Package | 16-WQFN (4x4) |
| Dimming | Analog, PWM |
| Voltage - Supply (Min) | 2.5V |
| Voltage - Supply (Max) | 5.5V |
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