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CBM1764DT-1.8-REEL
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Corebai Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+58@@ -0,0 +1,58 @@+# CBM1764DT-1.8-REEL++**Corebai Microelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5++CBM1764DT-1.8-REEL from Corebai Microelectronics, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SHDN | input | Active-low shutdown/enable control. Pulling SHDN low (<0.25V) places the regulator in low-power shutdown; drive high (>2V, up to 5V logic or OC gate with pull-up) to enable. Pin current is typically ~12uA at VSHDN=20V, so an OC driver must supply >20uA. Tie to IN if unused; leaving floating enters micro-power shutdown. |+| 2 | IN | power_in | Power input, 2.7V to 20V operating range. Provides supply to the regulator. Bypass with 1uF-10uF ceramic/tantalum capacitor when the input trace is >6 inches from the bulk supply cap. Tolerates reverse input voltage down to -20V (reverse leakage <1mA) without damage. |+| 3 | GND | power_in | Device ground. The TO-263-5 exposed tab is internally connected to pin 3 (GND) and should be soldered to a copper pour for thermal dissipation (theta-JA ~23°C/W). |+| 4 | OUT | power_out | Regulated 1.8V output, up to 3A load. Requires a minimum 10uF output capacitor (max ESR 3Ω) for stability; larger COUT reduces load-transient peak deviation. Fixed 1.8V (±1.5% typical, tolerances 1.737V to 1.854V over full temperature and load). |+| 5 | SENSE | input | Output sense (feedback) input for fixed-output versions. Connects directly to the internal error amplifier's inverting input. Typically tied to OUT at the load (Kelvin-sense) to compensate PCB trace IR drop; sense current is ~400uA. On the -ADJ variant this pin becomes ADJ (1.2V reference, ~3uA bias), but on CBM1764DT-1.8 it is SENSE. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Corebai Microelectronics |+| Package | TO-263-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `CBM1764DT-1.8-REEL`+- `CBM1764DT-1.8-REEL1.2-REEL`+- `CBM1764DT-1.8-REEL1.5-REEL`+- `CBM1764DT-1.8-REEL2.5-REEL`+- `CBM1764DT-1.8-REEL3.3-REEL`++## Related parts (NOT interchangeable)++The extractor listed these alongside CBM1764DT-1.8-REEL, but they are **different parts** with different electrical characteristics. Do not order them as substitutes.++- `CBM1764DT-1.8-REELADJ`+- `CBM1764DT-1.8-REELADJ-REEL`++## CAD (KiCad official)++- Symbol: `CBM1764DT-1.8-REEL`+- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`+- 3D model: TO-263-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Corebai Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945406394290176) (None pp, sha256 `bb1f1a6a9812de71`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/cbm1764dt-1-8-reel-datasheet.pdf)
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