component
U0058
Public Made by Adomby adom
UNI SEMIC DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+84@@ -0,0 +1,84 @@+# U0058++**UNI SEMIC** · DC-DC Converters · SOT-23-6++U0058 from UNI SEMIC, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | BS | passive | Bootstrap pin: a capacitor connected between SW and BST is required to form a floating supply across the high-side switch driver. |+| 2 | GND | power_in | Ground pin. |+| 3 | FB | input | Adjustable-version feedback input; connect FB to the center point of the external resistor divider (feedback voltage 0.780 V to 0.820 V). |+| 4 | EN | input | Drive to a logic-high to enable the IC and to a logic-low to disable it and enter micro-power shutdown mode (EN rising threshold 1.2 V, falling threshold 0.9 V). |+| 5 | IN | power_in | Power supply pin; operating input range is 4.5 V to 45 V, with an absolute maximum VIN of 55 V. |+| 6 | SW | output | Switching pin; absolute maximum SW voltage is -0.3 V to 55 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UNI SEMIC |+| Package | SOT-23-6 |+| Category | Power Management (PMIC) |+| Pins | 6 |++## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| VIN voltage | VIN | -0.3 | | 55 | V | | 4 |+| EN voltage | | -0.3 | | 55 | V | | 4 |+| SW voltage | | -0.3 | | 55 | V | | 4 |+| FB voltage | | -0.3 | | 6 | V | | 4 |+| Operating junction temperature, TJ | TJ | -40 | | 125 | °C | | 4 |+| Storage temperature | Tstg | -65 | | 150 | °C | | 4 |+| Lead temperature (soldering, 10 sec.) | | | | 260 | °C | Soldering, 10 sec. | 4 |+| Operating junction temperature | | -40 | | 125 | °C | | 4 |+| Operating temperature range | | -40 | | 85 | °C | | 4 |+| Input voltage | VIN | 4.5 | | 45 | V | | 4 |+| Output current | | 0 | | 0.6 | A | | 4 |+| Input Voltage Range | | 4.5 | | 45 | V | | 5 |+| Feedback Voltage | | 0.78 | 0.8 | 0.82 | V | | 5 |+| Supply Current (Quiescent) | | | 0.4 | 0.8 | mA | VEN =3.0V | 5 |+| Under-Voltage Lockout Threshold, Wake up VIN Voltage | | 4.2 | | 4.4 | V | | 5 |+| Under-Voltage Lockout Threshold, Shutdown VIN Voltage | | 3.4 | | 3.7 | V | | 5 |+| Supply Current (Shutdown) | | | 10 | | uA | VEN =0 or EN = GND | 5 |+| High-Side Switch On-Resistance | | | 500 | | mΩ | ISW=100mA | 5 |+| Low-Side Switch On-Resistance | | | 300 | | mΩ | ISW=-100mA | 5 |+| Valley Switch Current Limit | | | 1 | | A | | 5 |+| Over Voltage Protection Threshold | | | 48 | | V | | 5 |+| Switching Frequency | | | 850 | | KHz | | 5 |+| Maximum Duty Cycle | | | 89 | | % | VFB=90% | 5 |+| Minimum On-Time | | | 83 | | nS | | 5 |+| EN Rising Threshold | | | 1.2 | | V | | 5 |+| EN Falling Threshold | | | 0.9 | | V | | 5 |+| Hysteresis VIN voltage | | | 500 | | mV | | 5 |+| Soft Start | | | 1 | | mS | | 5 |+| Thermal Shutdown | | | 150 | | ℃ | | 5 |+| Thermal Hysteresis | | | 30 | | ℃ | | 5 |+| Junction-to-ambient thermal resistance | RθJA | | 105 | | °C/W | | 5 |+| Junction-to-case (top) thermal resistance | RθJC(top) | | 55 | | °C/W | | 5 |+| Junction-to-board thermal resistance | RθJB | | 17.5 | | °C/W | | 5 |+| Junction-to-top characterization parameter | ψJT | | 3.5 | | °C/W | | 5 |+| Junction-to-board characterization parameter | ψJB | | 17.5 | | °C/W | | 5 |++## CAD (KiCad official)++- Symbol: `U0058`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)+- 3D model files: `u0058-etched.step` / `u0058-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u0058.step` / `u0058.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UNI SEMIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756967984512274432) (14 pp, sha256 `d10a651071bb0d8d`, retrieved 2026-10-17, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/u0058-datasheet.pdf)
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