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SY6345AAC

Public Made by Adom

by adom

Silergy Corp 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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package.json Publish 0.1.0 · Ray 23d ago
page.json sy6345aac: specified limits as data (metadata.characteristics, 17 rows from the datasheet) · Ray 17d ago
README.md sy6345aac: specified limits as data (metadata.characteristics, 17 rows from the datasheet) · Ray 17d ago
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sy6345aac-hero.glb sy6345aac: hero GLB from the etched model (keeps the MPN mark) · Ray 23d ago
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SY6345AAC

Silergy Corp · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

SY6345AAC from Silergy Corp, 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 IN power_in IC power supply input, specified from 4V to 40V, and should be bypassed to the GND pin with a capacitor (about 2.2uF X5R or better ceramic recommended, located close to the device).
2 GND power_in Ground pin, to be connected to the external circuit ground in a single-point ground layout with the input and output capacitors.
3 EN input Enable pin: pull low to shut down and pull high to enable; it must not be left floating, with logic-high at 1.5V minimum and logic-low at 0.4V maximum for VIN = 5V to 40V.
4 ADJ input Output voltage adjust (feedback) pin, fed from the output through a resistor divider so that Vo = 0.6 x (1 + R1/R2), with the 0.6V reference typically 588 to 612 mV.
5 OUT power_out Regulated output pin, rated for up to 300mA load current, to be bypassed to GND with a low ESR ceramic capacitor (2.2uF can be used per the application information).

Key specifications

Parameter Value
Manufacturer Silergy Corp
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
IN to GND -0.3 40 V 3
OUT, EN, ADJ to GND -0.3 V 3
Power Dissipation SOT23-5 PD 0.6 W TA = 25°C, SOT23-5 3
Storage Temperature -65 150 °C 3
Junction Temperature (absolute maximum) TJ 150 °C 3
Lead Temperature (Soldering) 260 °C Soldering, 10sec. 3
Supply Input Voltage 4 40 V 3
Junction Temperature (operating) TJ -40 125 °C 3
Ambient Temperature Range -40 85 °C 3
Input Voltage VIN 4 40 V IOUT=10mA 4
Reference Voltage VREF 588 600 612 mV VIN=12V, Io=10mA 4
Load Regulation ∆VLDR 0.25 1 % IO=10mA to 300mA 4
Quiescent Current IQ 7 10 µA No Load 4
Output Current IO 0 300 mA VIN=VOUT+0.6V 4
Output Current limit ILIM 350 750 mA VIN= 6V,VOUT=0.9xVOUT(normal) 4
Package Thermal Resistance junction-to-ambient θJA 170 °C/W 3
Package Thermal Resistance junction-to-case θJC 130 °C/W 3

CAD (KiCad official)

  • Symbol: SY6345AAC
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sy6345aac-etched.step / sy6345aac-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy6345aac.step / sy6345aac.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (10 pp, sha256 a573f9a22cd9b626, retrieved 2026-10-09, 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