RT8540AGQW
IC LED DRIVER RGLTR NO 4A 20WQFNManufacturer: Richtek USA Inc.
Categories: LED Drivers
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Richtek USA Inc. RT8540AGQW is a high-efficiency, single-output DC-DC boost regulator designed for LED driving applications. This component features an integrated switch capable of delivering up to 4A of output current, suitable for demanding illumination requirements. The device operates with a fixed switching frequency of 2MHz, enabling the use of small external components. Its step-up (boost) topology allows for output voltages ranging from 3.83V to 5.45V, with a maximum input voltage of 5.5V and a minimum of 2.8V. The RT8540AGQW is packaged in a 20-WFQFN exposed pad (4x4mm) for efficient surface mounting. This LED driver is commonly utilized in camera flash systems. It operates within an ambient temperature range of -40°C to 85°C.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: BulkDownload Free CAD Model:
Technical Details:
| Packaging | Bulk |
| Package / Case | 20-WFQFN Exposed Pad |
| Voltage - Output | 3.83V ~ 5.45V |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Frequency | 2MHz |
| Type | DC DC Regulator |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Applications | Camera Flash |
| Current - Output / Channel | 4A |
| Internal Switch(s) | Yes |
| Topology | Step-Up (Boost) |
| Supplier Device Package | 20-WQFN (4x4) |
| Dimming | No |
| Voltage - Supply (Min) | 2.8V |
| Voltage - Supply (Max) | 5.5V |
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