CJ6101B33M

@@ -0,0 +1,46 @@+# CJ6101B33M++**Changjing** · Voltage Reference · SOT-23-5L++CJ6101B33M 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, 1.8 V to 8 V (abs max 9 V). Bypass to VSS with a 1 µF ceramic capacitor close to the pin; a small series resistor (~3 Ω) may be added with an X5R ceramic to damp start-up transients. |+| 2 | VSS | power_in | Device ground / common return for VIN, VOUT and CE. All voltages in the datasheet are referenced to this node. |+| 3 | CE | input | Chip-enable logic input. On the 'B' option (CJ6101B) it is active-high with an internal pull-down resistor to VSS and an internal output-discharge resistor on VOUT, so leaving CE open keeps the regulator off. VCE(H) ≥ 1.5 V (up to VIN) enables the regulator; VCE(L) ≤ 0.3 V disables it (standby current ≈ 0.1 µA). |+| 4 | NC | unconnected | No internal connection. Leave floating or tie to VSS; do not use as a routing via. |+| 5 | VOUT | power_out | Regulated 3.3 V output, up to 300 mA continuous (600 mA absolute-max). Requires a 1 µF ceramic (or tantalum) capacitor to VSS close to the pin for loop stability; typical dropout is 110 mV at 100 mA and output noise ≈ 27 × VOUT µVRMS (10 Hz-100 kHz). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Changjing |+| Package | SOT-23-5L |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `CJ6101B33MM`+- `CJ6101B33MP`+- `CJ6101B33MF`++## CAD (KiCad official)++- Symbol: `CJ6101B33M`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Changjing datasheet](docs/cj6101b33m-datasheet.pdf) (10 pp, sha256 `0e2340656a2045f6`, 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](docs/cj6101b33m-datasheet.pdf)

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