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Ray Publish 0.1.0 4c1d73c 16d ago

LSP5526-S8A

Diodes Incorporated · DC-DC Converters · SOP-8

LSP5526-S8A from Diodes Incorporated, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BS power_out Bootstrap pin that acts as the positive rail for the high-side switch gate driver; connect a 0.01uF capacitor between BS and SW.
2 VIN power_in Input supply pin that should be bypassed to GND with a low ESR capacitor placed close to the pin.
3 SW output Switch output pin that connects to the switching end of the inductor.
4 GND power_in Ground pin.
5 FB input Feedback input regulated to 0.925V; connect to the resistor divider between output and ground to set the output voltage.
6 COMP passive Compensation pin for the error amplifier; stability compensation network is connected here (RCOMP, CCOMP1, and CCOMP2 if a high ESR output capacitor is used).
7 EN input Enable input: above 2.7V turns the IC on, below 1.1V turns it off, and it should not be left open.
8 SS input Soft-start control input; a capacitor from SS to GND sets the soft-start period (0.1uF gives 15ms), and leaving SS unconnected disables soft-start.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOP-8
Category Power Management (PMIC)
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Feedback Voltage VFB 0.9 0.925 0.95 V 4.5V ≤VIN ≤23V 5
High-Side Switch Leakage 10 uA VEN = 0V, VSW = 0V 5
Upper Switch Current Limit 2.7 3.5 A Minimum Duty Cycle 5
EN Shutdown Threshold Voltage 1.1 1.4 2 V VEN Rising 5
EN Lockout Threshold Voltage 2.2 2.5 2.7 V 5
Supply Current in Shutdown 0.3 3 uA VEN = 0 5
IC Supply Current in Operation 1.3 1.5 mA VEN = 3V, VFB = 1.0V 5
Input UVLO Threshold Rising UVLO 3.8 4.05 4.4 V VEN Rising 5
Input Supply Voltage 4.5 23 V 4
Operating Junction Temperature -20 125 °C 4
Input Supply Voltage -0.3 25 V TA=25°C 4
SW Voltage -0.3 V TA=25°C 4
EN Voltage -0.3 8 V TA=25°C 4
FB, COMP Voltage -0.3 5 V TA=25°C 4
Maximum Junction Temperature 150 °C TA=25°C 4
Storage Temperature Range -65 150 °C TA=25°C 4
SOP-8L Thermal Resistance (Junction to Case) 60 °C/W 4
SOP-8L Thermal Resistance (Junction to Ambient) 150 °C/W 4
SOP-8L Power dissipation 810 mW TA=25°C 4

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208  Weight: 0.076 grams (Approximate) 16

CAD (KiCad official)

  • Symbol: LSP5526-S8A
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lsp5526-s8a-etched.step / lsp5526-s8a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lsp5526-s8a.step / lsp5526-s8a.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (17 pp, sha256 5a2d7af97b50ac58, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF