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CJ6211B28M

Public Made by Adom

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Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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CJ6211B28M

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

CJ6211B28M from Changjing, in a SOT-23-5L. 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 VIN power_in Unregulated power input. Operating range 1.8 V to 6.0 V, absolute max 7 V. Bypass with a 1 µF ceramic CIN to VSS close to the pin.
2 VSS power_in Ground / negative supply return for the regulator. All voltages are referenced to this network ground.
3 CE input TTL-logic chip-enable input, active high. VCE high threshold ≥1.5 V (up to VIN), VCE low ≤0.3 V. B-variant integrates a pull-down resistor so the part defaults off when CE floats; driving CE low enables the internal N-channel discharge FET across VOUT-VSS (≈60 Ω typ.).
4 NC unconnected No internal connection. Leave floating or tie to VSS on the board.
5 VOUT power_out Regulated output, 2.8 V for the '28' ordering code. Up to 700 mA (VOUT ≥ 1.8 V) / 500 mA (VOUT ≥ 0.8 V). Requires a 1 µF ceramic COUT to VSS; internal current limit and short-circuit protection to ~100 mA short current.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • CJ6211B28MM
  • CJ6211B28MN
  • CJ6211B28MF

CAD (KiCad official)

  • Symbol: CJ6211B28M
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: cj6211b28m-etched.step / cj6211b28m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj6211b28m.step / cj6211b28m.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (11 pp, sha256 805289572b9842e1, retrieved 2026-08-17, tier: lcsc)
  • 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