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TOLL TMI3253S 600kHz 18V 3A Synchronous COT Step-Down Converter
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pTOLL TMI3253S — synchronous cot step-down (buck) converter, SOT23-6, 18 V./p
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TOLL TMI3253S 600kHz 18V 3A Synchronous COT Step-Down Converter
The TMI3253S from TOLL acts as a synchronous cot step-down (buck) converter, comes in SOT23-6.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer | TOLL Microelectronics (Tuoer Micro) |
| Part number | TMI3253S |
| Device type | Synchronous COT step-down (buck) converter |
| Product line | Power Management ICs |
| Input / supply voltage | 4.5 V to 18 V |
| Output current | Up to 3 A (3.5 A at 1.2 V output) |
| Switching frequency | 600 kHz |
| Package | SOT23-6 |
| Internal FETs | 70 mOhm / 35 mOhm |
| Output voltage | From 0.6 V (TMI3253S) |
| Control mode | COT with integrated compensation |
| Datasheet | TMI3253_S_T_DS_EN_V2.1 |
Practical Notes
- Check the reference design before finalising external components.
- Thermal pad layout drives continuous current capability.
- Confirm the suffix — package and grade change between variants.
- Datasheet limits apply at the stated test conditions; derate for your ambient.
- Protection thresholds are set by external resistors in most designs.
Application Scenarios
Common installation contexts include:
- EV
- DC-DC
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