component

VPC5021

Public Made by Adom

by adom

VPSC AC-DC Controllers and Regulators, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmicvpc5021
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

VPC5021

VPSC · AC-DC Controllers and Regulators · MSOP-8

VPC5021 from VPSC, in a MSOP-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 COM input Loop feedback input. Internally pulled up through 5k to supply bias for the optocoupler; forms the modulation voltage that sets peak current and enables light-load frequency reduction. Includes internal RC loop compensation; an external RC network to GND may be added for additional compensation.
2 VIN power_in High-voltage supply input. Connects through an internal HV linear regulator to VDD; operates up to 100V (abs max 110V). Before startup VIN(ON) ~20V the regulator is off keeping IC current below 5uA; after startup the regulator generates ~8.7V at VDD.
3 VDD power_out Output of the internal linear regulator and supply node for the control logic and GATE driver. Requires an external decoupling capacitor to GND for stability. UVLO thresholds: VDD(ON) 7.4V typ, VDD(OFF) 6.3V typ; OVP at 18.6V typ.
4 GATE output Power MOSFET gate drive output. Strong drive with source peak current up to 0.8A and sink peak current up to 1.5A; rise 30ns / fall 20ns into 1nF. Powered from VDD.
5 GND power_in Chip reference ground. Return for VDD bypass, COM/SS/RT/CS networks and the GATE driver sink current.
6 CS input Current-sense input. Sampled signal is amplified internally by Av=2.5 and drives the PWM comparator, OCP (current-limit) comparator and SCP (short-circuit) comparator. Referred current-limit threshold 500mV; short-circuit threshold 800mV.
7 RT passive Maximum switching-frequency setting pin. Connect an external resistor (kΩ range) from RT to GND to program Fsw; e.g. RT=44.2kΩ→150kHz, 22kΩ→300kHz, 13.3kΩ→500kHz. VRT reference ~2.02V.
8 SS output Soft-start pin. Sources ~28uA into an external capacitor to GND during startup before the output voltage is established; the slowly rising SS voltage clamps the COM voltage slew rate to ramp the peak current gradually.

Key specifications

Parameter Value
Manufacturer VPSC
Package MSOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • VPC5021

CAD (KiCad official)

  • Symbol: VPC5021
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: vpc5021-etched.step / vpc5021-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); vpc5021.step / vpc5021.glb are the bare package body.

Provenance

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

  • Datasheet: VPSC datasheet (11 pp, sha256 4fe46188a4709733, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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