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Ray Publish 0.1.0 e23e805 17d ago

DS8561-12S3

DSTECH · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT23-3

DS8561-12S3 from DSTECH, in a SOT23-3. 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 GND power_in Ground pin; the datasheet's absolute maximum for VIN to GND is -0.3V to 7V and VOUT/EN to GND is -0.3V to 6V.
2 VOUT power_out Regulated voltage output (fixed 1.2V on this -12 variant); VOUT to GND is rated -0.3V to 6V and the datasheet recommends 1uF to 22uF effective output capacitance with ESR above 1mΩ.
3 VIN power_in Power input; recommended operating range is 1.2V to 5.5V, and a 1uF or larger input capacitor should be placed close to the VIN and GND pins.

Key specifications

Parameter Value
Manufacturer DSTECH
Package SOT23-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input voltage VIN 1.2 5.5 V 7
Output voltage accuracy -2 2 % ILOAD =0.1mA 7
Shutdown current ISD 0.1 0.5 μA VEN = 0V, VOUT = 0V 7
EN input current IEN 10 100 nA VEN = 5V 7
Output current limit ILIM 301 600 mA VOUT = 0V 7
Junction temperature (recommended operating) -40 125 °C 6
Ambient temperature (recommended operating) -40 85 °C 6
VIN to GND (absolute maximum) -0.3 7 V Note 1 6
VOUT, EN to GND (absolute maximum) -0.3 6 V Note 1 6
VOUT to VIN (absolute maximum) -6 0.3 V Note 1 6
Storage temperature range -60 150 °C 6
Junction temperature (absolute maximum) 150 °C 6
Lead soldering temperature 260 °C Soldering, 10 sec 6
ESD HBM 2 KV HBM 6
ESD MM 200 V MM 6
ESD CDM 2 KV CDM 6
Dropout voltage (1.2V output) VDROP_1.2V 0.45 V ILOAD =300mA, VOUT = 1.2V 7
Quiescent current IQ 2 μA ILOAD = 0mA 7
EN threshold high VIH 1 V EN Rising 7
EN threshold low VIL 0.4 V EN Falling 7
Input voltage regulation ΔLINE 0.2 % ILOAD =30mA, 1.5V ≤ VIN ≤ 5.5V or (VOUT + 0.2V) ≤ VIN ≤ 5.5V 7
Load voltage regulation ΔLOAD 0.2 % 10mA ≤ ILOAD ≤ 0.3A 7
Power supply rejection ratio at 100Hz PSRR 80 dB ILOAD =5mA, VOUT =1.2V, VIN = 2V, f = 100Hz 7
Power supply rejection ratio at 1kHz PSRR 75 dB ILOAD =5mA, VOUT =1.2V, VIN = 2V, f = 1kHz 7
Output current noise 80 μVRMS BW = 10Hz to 100kHz, COUT =1μF, VIN = 3.5V, ILOAD =0.1A, VOUT =1.2V 7
Over-temperature shutdown temperature TSD 155 °C ILOAD =10mA 7
Over-temperature shutdown hysteresis ΔTSD 15 °C 7
Discharge resistance RDC 30 Ω EN = 0V, VOUT = 0.1V 7
Package thermal resistance junction-to-ambient, SOT-23-3 θJA 200 °C/W TA = 25°C, DSTECH EVB board (Note 2) 6

CAD (KiCad official)

  • Symbol: DS8561-12S3
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT23-3 (KiCad packages3D, STEP)
  • 3D model files: ds8561-12s3-etched.step / ds8561-12s3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ds8561-12s3.step / ds8561-12s3.glb are the bare package body.

Provenance

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

  • Datasheet: DSTECH datasheet (19 pp, sha256 b28c6b5e18533c57, retrieved 2026-10-18, 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: 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