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D2985-3.3

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Silicore(芯谷) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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D2985-3.3

Silicore(芯谷) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

D2985-3.3 from Silicore(芯谷), in a SOT-23-5. 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 VIN power_in Regulator input supply; the operating input range is 2.5 V to 16 V and an input capacitor of at least 1 µF must be connected between VIN and ground.
2 GND power_in Common ground return for the regulator, to which the input and output capacitors must be returned.
3 ON/OFF input Logic-high enable input: the output turns on when VON/OFF is at least 1.4 V (1.6 V typical) and turns off when it is at or below 0.15 V to 0.55 V, with a slew rate of at least 40 mV/µs; tie to VIN if the feature is not used.
4 BYPASS passive Noise bypass pin for a 10 nF capacitor to ground, where DC leakage through the capacitor must never exceed 100 nA to preserve output accuracy.
5 VOUT power_out Regulated fixed-voltage output, which requires a minimum of 2.2 µF ceramic output capacitor with ESR as low as 5 mΩ placed no more than 1 cm from the pin.

Key specifications

Parameter Value
Manufacturer Silicore(芯谷)
Package SOT-23-5
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
Output voltage tolerance ΔVo -1.5 1.5 %VNOM IL=1mA 5
Output voltage tolerance ΔVo -2.5 2.5 %VNOM 1mA ≤ IL ≤ 50mA 5
Output voltage tolerance ΔVo -3.5 3.5 %VNOM 1mA ≤ IL ≤ 50mA 5
Output voltage tolerance ΔVo -3 3 %VNOM 1mA ≤ IL ≤ 150mA 5
Output voltage tolerance ΔVo -4 4 %VNOM 1mA ≤ IL ≤ 150mA 5
Output voltage line regulation 0.007 0.014 %/V Vo(NOM)+1V ≤ VIN ≤ 16V 5
Output voltage line regulation 0.032 %/V Vo(NOM)+1V ≤ VIN ≤ 16V 5
Dropout voltage VIN-Vo 1 3 mV IL=0 5
Dropout voltage VIN-Vo 5 mV IL=0 5
Dropout voltage VIN-Vo 7 10 mV IL=1mA 5
Dropout voltage VIN-Vo 15 mV IL=1mA 5
Dropout voltage VIN-Vo 40 60 mV IL=10mA 5
Dropout voltage VIN-Vo 90 mV IL=10mA 5
Dropout voltage VIN-Vo 120 150 mV IL=50mA 5
Dropout voltage VIN-Vo 225 mV IL=50mA 5
Dropout voltage VIN-Vo 280 350 mV IL=150mA 5
Dropout voltage VIN-Vo 575 mV IL=150mA 5
ON/OFF input voltage (high, output ON) VON/OFF 1.4 1.6 V High=O/P ON 5
ON/OFF input voltage (low, output OFF) VON/OFF 0.15 0.55 V Low=O/P OFF 5
ON/OFF input current ION/OFF -2 0.01 µA VON/OFF=0V 5
ON/OFF input current ION/OFF 5 15 µA VON/OFF=5V 5
Ground pin current IGND 65 95 µA IL=0 5
Ground pin current IGND 125 µA IL=0 5
Ground pin current IGND 75 110 µA IL=1mA 5
Ground pin current IGND 170 µA IL=1mA 5
Ground pin current IGND 120 220 µA IL=10mA 5
Ground pin current IGND 400 µA IL=10mA 5
Ground pin current IGND 350 600 µA IL=50mA 5
Ground pin current IGND 1000 µA IL=50mA 5
Ground pin current IGND 850 1500 µA IL=150mA 5
Ground pin current IGND 2500 µA IL=150mA 5
Ground pin current (ON/OFF pulled low) 0.01 0.8 µA VON/OFF < 0.3V 5
Ground pin current (ON/OFF pulled low) 0.05 2 µA VON/OFF < 0.15V 5
Input supply voltage (survival) -0.3 16 V 4
Input supply voltage (operating) 2.5 16 V 4
Shutdown input voltage (survival) -0.3 16 V 4
ESD rating 2 kV footnote *2 (pins 3 and 4 of SOT-23-5L: 1 kV) 4
Output voltage (survival) -0.3 9 V footnote *4 4
Input-output voltage (survival) -0.3 16 V footnote *5 4
Operating temperature -40 125 C 4
Storage temperature -65 150 C 4
Lead temperature (soldering) 260 C soldering, 5 sec. 4
Input capacitor CIN 1 µF between VIN and ground, capacitance ≥1 µF over full operating temperature range 7
Output capacitor COUT 2.2 µF capacitance over full operating temperature range 8
Noise bypass capacitor DC leakage 100 nA DC leakage through bypass capacitor 8
ON/OFF input signal slew rate 40 mV/µs turn-on and turn-off signals at ON/OFF input 9
Junction temperature range -40 125 °C 2
Junction-to-ambient thermal resistance θJA 220 °C/W SOT-23-5L, typical PC board mounting 6

CAD (KiCad official)

  • Symbol: D2985-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: d2985-3-3-etched.step / d2985-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); d2985-3-3.step / d2985-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: Silicore(芯谷) datasheet (19 pp, sha256 1dac16bc94024118, retrieved 2026-10-17, 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