Richtek USA Inc.20-WFQFN Exposed PadRoHS
RT8540AGQW
IC POWER MANAGEMENT
Price available on request
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Richtek USA Inc. |
| Model | RT8540AGQW |
| Package / Case | 20-WFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Step-Up (Boost) |
| Voltage - Output | 3.83V ~ 5.45V |
| Number of Outputs | 1 |
| Supplier Device Package | 20-WQFN (4x4) |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
RT8540AGQW by Richtek USA Inc. is a Step-Up (Boost) IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output 3.83V ~ 5.45V. The 20-WFQFN Exposed Pad package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Type | DC DC Regulator |
| Dimming | No |
| Topology | Step-Up (Boost) |
| Frequency | 2MHz |
| Applications | Camera Flash |
| Voltage - Output | 3.83V ~ 5.45V |
| Number of Outputs | 1 |
| Internal Switch(s) | Yes |
| Voltage - Supply (Max) | 5.5V |
| Voltage - Supply (Min) | 2.8V |
| Current - Output / Channel | 4A |
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