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Contents

README

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LSP5527-S8A

Diodes Incorporated · DC-DC Converters · SOP-8

LSP5527-S8A from Diodes Incorporated, in a SOP-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 BS passive Bootstrap. Positive rail for the high-side switch's gate driver. Connect a 0.01 µF capacitor between BS and SW. Absolute max: Vsw − 0.3 V to Vsw + 6 V.
2 VIN power_in Input supply, 4.5 V to 27 V (absolute max 30 V). Bypass to GND with a low-ESR capacitor (see Input Capacitor in Application Information).
3 SW power_out Switch output. Connect to the switching end of the inductor. Range −0.3 V to VIN + 0.3 V; internal 95 mΩ high-side and low-side MOSFETs; delivers up to 2 A continuous.
4 GND power_in Ground return for the device.
5 FB input Feedback input. Regulated to 0.925 V (typ). Connect to the resistor divider between the output and GND to set the output voltage. Absolute max −0.3 V to 5 V.
6 COMP output Loop compensation pin from the internal error amplifier (gm ≈ 920 µA/V). Connect an external R-C network to GND per Stability Compensation guidance. Absolute max −0.3 V to 5 V.
7 EN input Enable input. VEN > 2.7 V turns the IC on; VEN < 1.1 V turns it off (output is discharged when off). Do not leave open - a 200 kΩ pull-up to VIN is recommended for start-up. Absolute max −0.3 V to 8 V.
8 SS passive Soft-start control. Connect a capacitor from SS to GND to program the soft-start period (0.1 µF ≈ 15 ms; internal 6 µA charging current). Leave unconnected to disable soft-start.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • LSP5527-S8A

CAD (KiCad official)

  • Symbol: LSP5527-S8A
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (17 pp, sha256 1f96d1d0b0ffe23c, retrieved 2026-08-17, tier: manufacturer)
  • 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