Device Overview
TPS62933ODRLR is the Out-of-Audio (OOA) version of Texas Instruments’ TPS62933 3 A synchronous buck-converter family in the compact 8-pin SOT583 package. The O suffix is a functional variant, not just a packing code.
Key Selection Information
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TPS62933ODRLR |
| Topology | Synchronous buck converter |
| Input voltage | 3.8 V to 30 V |
| Output voltage | 0.8 V to 22 V adjustable |
| Continuous output current | Up to 3 A |
| Switching frequency | Selectable from 200 kHz to 2.2 MHz through the RT configuration |
| Exact variant behavior | TPS62933O uses Out-of-Audio light-load operation to avoid audible-noise behavior |
| Quiescent current | Approximately 50 µA typical for the O variant on the current TI product page |
| Maximum duty cycle | 98% |
| EMI feature | Frequency spread spectrum |
| Protection | Cycle-by-cycle high-side and low-side over-current protection plus OTP/OVP/UVP/UVLO functions |
| Package | SOT583 / SOT-5X3 (DRL), 8 pins, approximately 1.6 mm x 2.1 mm |
| Operating temperature | -40 °C to +150 °C |
| Manufacturer lifecycle | Active |
Engineering Selection Notes
The switching frequency is not fixed at 2.2 MHz. The device supports a 200 kHz to 2.2 MHz selectable range, allowing the design to trade inductor size, switching loss, EMI behavior and transient response.
The O suffix selects Out-of-Audio light-load behavior. It should not be assumed equivalent to TPS62933, TPS62933F or TPS62933P because those variants use different light-load/control strategies.
The 3 A value is the converter current capability, but practical continuous output still depends on VIN-to-VOUT conversion ratio, switching frequency, inductor losses, PCB copper and junction temperature. High VIN with low VOUT is usually more thermally demanding than the current rating alone suggests.
Official Engineering Resources
Alternative Candidates for Engineering Evaluation
Candidate alternatives require engineering verification before substitution. Light-load mode, soft-start behavior, frequency configuration, protection behavior and pin compatibility should be checked.
| MPN | Manufacturer | Package |
|---|---|---|
| TPS62933DRLR | Texas Instruments | SOT-583 |
| TPS62933FDRLR | Texas Instruments | SOT-583 |
| TPS62933PDRLR | Texas Instruments | SOT-583 |
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer.
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