MD7672B50SF4

@@ -0,0 +1,50 @@+# MD7672B50SF4++**Shanghai Mingda Microelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · ESOP-8++MD7672B50SF4 from Shanghai Mingda Microelectronics, in a ESOP-8. 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 | VOUT | power_out | Regulator output pin. Default fixed 5 V (adjustable 1.2-5 V via external divider; 0.7 V min with ADJ divider). Supplies up to 2 A. Place a low-ESR ceramic COUT ≥ 4.7 µF (X5R/X7R) as close to this pin as possible; ≥10 µF recommended for load currents >500 mA. |+| 2 | ADJ | input | Adjustable / feedback pin. Output voltage is programmed by an external resistive divider using VOUT = VREF·(1 + R1/R2) with VREF = 0.7 V nominal (0.686-0.714 V). Tie ADJ directly to GND to select the internal fixed 5 V setting. ADJ pin current ≈ 10 nA; threshold ≈ 0.1 V. |+| 3 | GND | power_in | Ground / signal return. Also serves as the thermal reference; must be tied to the exposed pad ground plane for proper heat dissipation. |+| 4 | N.C. | unconnected | No internal connection. May be left floating or tied to GND / left OPEN per datasheet note. |+| 5 | EN | input | Enable input, active-high. VEN ≥ 1.6 V enables the regulator; VEN ≤ 0.4 V shuts down the device (shutdown current 10 nA typ., output driven to 0 V through ~30 Ω internal discharge). Do not leave floating. |+| 6 | N.C. | unconnected | No internal connection. May be left floating or tied to GND / OPEN. |+| 7 | N.C. | unconnected | No internal connection. May be left floating or tied to GND / OPEN. |+| 8 | VIN | power_in | Power supply input, 2-6 V (absolute max −0.3 to 7 V). Must be decoupled to GND with a ≥4.7 µF low-ESR ceramic capacitor placed close to the pin; ≥10 µF recommended for load currents >500 mA. |+| EP | GND | power_in | Exposed thermal pad on package bottom. Must be soldered to a large ground plane (both electrical return and thermal path). θJB = 80 °C/W for ESOP8. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Mingda Microelectronics |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `MD7672B50SF4B50SF4`+- `MD7672B50SF4A50SF4`+- `MD7672B50SF4E50UB2`++## CAD (KiCad official)++- Symbol: `MD7672B50SF4`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](docs/md7672b50sf4-datasheet.pdf) (11 pp, sha256 `e70bd5ca9e1c146d`, 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/md7672b50sf4-datasheet.pdf)

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