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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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cbm1764dt-1-8-reel-etched.step cbm1764dt-1-8-reel: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the p… · Ray 24d ago
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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

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)
  • 3D model files: cbm1764dt-1-8-reel-etched.step / cbm1764dt-1-8-reel-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm1764dt-1-8-reel.step / cbm1764dt-1-8-reel.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Corebai Microelectronics datasheet (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