| Product Status | Obsolete | |
| Internal Switch(s) | Yes | |
| Supplier Device Package | 20-WQFN (4x4) | |
| Package / Case | 20-WFQFN Exposed Pad | |
| Voltage - Supply (Max) | 5.5V | |
| REACH Status | REACH Unaffected | |
| Voltage - Output | 3.83V ~ 5.45V | |
| Mfr | Richtek USA Inc. | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Applications | Camera Flash | |
| Voltage - Supply (Min) | 2.8V | |
| ECCN | OBSOLETE | |
| Topology | Step-Up (Boost) | |
| Mounting Type | Surface Mount | |
| Number of Outputs | 1 | |
| Series | - | |
| Type | DC DC Regulator | |
| Frequency | 2MHz | |
| Dimming | No | |
| HTSUS | 0000.00.0000 | |
| Package | Bulk | |
| Current - Output / Channel | 4A | |
| Base Product Number | RT8540 |
