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Contents

README

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RS2588AYF5

Jiangsu RUNIC Tech · Power Distribution Switches · SOT23-5

RS2588AYF5 from Jiangsu RUNIC Tech, in a SOT23-5. 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 VOUT power_out Switch output, the P-channel drain of the power switch that typically connects to the load, and the datasheet notes it may be externally forced above VIN when the switch is disabled.
2 GND power_in Ground reference for the device; all voltages in the datasheet are specified with respect to this pin.
3 FLAG output Active-low open-drain fault output that asserts on over-current (only after the about 13 ms response delay tD) or thermal shutdown, with a maximum 0.4 V low level at 2 mA sink and up to 1.0 µA leakage when high.
4 EN input Active-high logic-level enable input with VIL max 0.4 V and VIH min 1.6 V, and an internal pull-down of 450 to 600 kΩ.
5 VIN power_in Power supply input and the P-channel source of the switch that also supplies the internal circuitry, specified for 2.5 V to 5.5 V with an absolute maximum of 6.0 V.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Quiescent supply current IQ 10 30 50 μA Switch on, VOUT = open 8
Shutdown supply current ISD 0.1 1 μA Switch off, VOUT = open 8
Leakage current of VIN ILKG(VIN) 0.1 1 μA Switch off, VOUT = 0V 8
Enable input threshold, low VIL 0.4 V VIN = 2.5V to 5.5V 8
Enable input threshold, high VIH 1.6 V VIN = 2.5V to 5.5V 8
EN input current IEN 10 15 μA VEN = 0V to 5.5V 8
EN pin pull-down resistance RPULL_DOWN 450 520 600 kΩ VEN = 2.5V to 5.5V 8
Switch resistance RDS(ON) 70 80 mΩ IOUT = 500mA 8
Current limit threshold (RS2588A) 0.99 1.1 1.21 A Ramped load 8
Leakage current of FLAG ILKG(FLAG) 0.1 1 μA FLAG is HIGH 8
FLAG output low voltage VFLAG-L 0.4 V CIN=10uF, ISINK =2mA 8
VOUT shutdown discharge resistance RDIS 250 300 350 Ω Switch off 8
Supply input voltage (absolute maximum) VIN -0.3 6 V 7
Output voltage (absolute maximum) VOUT -0.3 6 V 7
EN input voltage (absolute maximum) VEN -0.3 6 V 7
FLAG output voltage (absolute maximum) VFLAG -0.3 6 V 7
Operating junction temperature (absolute maximum) TJ -40 150 °C 7
Storage temperature Tstg -65 150 °C 7
Lead temperature TL 260 °C Soldering, 10secs 7
Input voltage (recommended) VIN 2.5 5.5 V 7
EN voltage range (recommended) VEN 0 5.5 V 7
All other pins voltage (recommended) 0 5.5 V 7
Operating temperature range TA -40 85 °C 7
Operating junction temperature range TJ -40 125 °C 7
Electrostatic discharge, human-body model V(ESD) -3000 3000 V Human-body model (HBM) 7
Electrostatic discharge, charge device model V(ESD) -1500 1500 V Charge device model (CDM) 7
Junction-to-ambient thermal resistance RθJA 185.6 °C/W 7
Junction-to-case (top) thermal resistance RθJC(top) 104.3 °C/W 7
Junction-to-board thermal resistance RθJB 54.5 °C/W 7
Junction-to-top characterization parameter ψJT 31 °C/W 7
Junction-to-board characterization parameter ψJB 54.5 °C/W 7

CAD (KiCad official)

  • Symbol: RS2588AYF5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: rs2588ayf5-etched.step / rs2588ayf5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs2588ayf5.step / rs2588ayf5.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (18 pp, sha256 d90ad53c2f60d1e4, 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