component
UC285TDKTTT-ADJ
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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UC285TDKTTT-ADJ
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
UC285TDKTTT-ADJ from Texas Instruments, in a TO-263-5. 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 | VB | power_in | Supplies power to all circuits of the regulator except the output power transistor, and needs at least 2 V of headroom above VOUT (VB dropout 1.8 V to 2.2 V at 5 A); VB absolute maximum is 13 V. |
| 2 | VIN | power_in | Supplies current only to the collector of the output power transistor, with maximum dropout of 490 mV at 5 A for TJ = 0°C to 100°C (500 mV over the UC285 range); VIN absolute maximum is 7.5 V. |
| 3 | GND | power_in | Should be referenced to the load ground for accurate results; the tab is also ground. |
| 4 | ADJ | input | In the adjustable version the output is programmed by two external 0.1% resistors that must satisfy R3 |
| 5 | VOUT | power_out | Connect to the load through a low-impedance path, and decouple with at least 100 µF of high-quality tantalum or OSCON capacitance close to this pin for maximum stability. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
UC285TDKTTT-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
uc285tdkttt-adj-etched.step/uc285tdkttt-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc285tdkttt-adj.step/uc285tdkttt-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
46b27cc669e96326, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# UC285TDKTTT-ADJ
**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
UC285TDKTTT-ADJ from Texas Instruments, in a TO-263-5. 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 | VB | power_in | Supplies power to all circuits of the regulator except the output power transistor, and needs at least 2 V of headroom above VOUT (VB dropout 1.8 V to 2.2 V at 5 A); VB absolute maximum is 13 V. |
| 2 | VIN | power_in | Supplies current only to the collector of the output power transistor, with maximum dropout of 490 mV at 5 A for TJ = 0°C to 100°C (500 mV over the UC285 range); VIN absolute maximum is 7.5 V. |
| 3 | GND | power_in | Should be referenced to the load ground for accurate results; the tab is also ground. |
| 4 | ADJ | input | In the adjustable version the output is programmed by two external 0.1% resistors that must satisfy R3 || R4 < 100 Ω, with ADJ connected to VOUT giving a 1.2 V output; this is the Kelvin sense point. |
| 5 | VOUT | power_out | Connect to the load through a low-impedance path, and decouple with at least 100 µF of high-quality tantalum or OSCON capacitance close to this pin for maximum stability. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
## CAD (KiCad official)
- Symbol: `UC285TDKTTT-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `uc285tdkttt-adj-etched.step` / `uc285tdkttt-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uc285tdkttt-adj.step` / `uc285tdkttt-adj.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/uc285) (19 pp, sha256 `46b27cc669e96326`, retrieved 2026-10-11, 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/uc285tdkttt-adj-datasheet.pdf)