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SY7301ADBC

Public Made by Adom

by adom

Silergy Corp LED Drivers, DFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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SY7301ADBC

Silergy Corp · LED Drivers · DFN-10-EP(3x3)

SY7301ADBC from Silergy Corp, in a DFN-10-EP(3x3). 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 NC unconnected No connection; the datasheet lists this pin as not connected.
2 FB input Feedback pin; connect a resistor RFB between FB and GND to program the output current, ILED = 0.3V/RFB.
3 NC unconnected No connection; the datasheet lists this pin as not connected.
4 LX output Inductor node; connect an inductor from the power input to LX, with LX rated 42V absolute maximum.
5 LX output Inductor node; connect an inductor from the power input to LX, with LX rated 42V absolute maximum.
6 NC unconnected No connection; the datasheet lists this pin as not connected.
7 IN power_in Input pin; decouple to GND with 1µF or more ceramic capacitance, with input voltage range 2.8V to 40V.
8 OVP input Over-voltage protection input; connect to the output of the circuit, with a typical OVP threshold of 37V.
9 EN/PWM input Enable and dimming control; pull high to turn on the IC, and for PWM dimming the recommended frequency range is 200Hz to 1MHz with the first pulse longer than 200ns.
10 NC unconnected No connection; the datasheet lists this pin as not connected.
11 GND power_in Ground pin, provided as the exposed paddle on the DFN3X3-10 package.

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package DFN-10-EP(3x3)
Category LED Drivers
Pins 11

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 Range VIN 2.8 40 V 3
Quiescent Current IQ 100 200 µA VFB=0.3V 3
Shutdown Current ISHDN 10 15 µA EN=0 3
Feedback Reference Voltage VREF 294 300 306 mV 3
FB Input Current IFB 1 µA VFB=0.3V 3
Low Side Main FET RON RDS(ON)1 200 mΩ 3
Main FET Current Limit ILIM1 2 A 3
EN Rising Threshold VENH 1.5 V 3
EN Falling Threshold VENL 0.4 V 3
PWM Dimming Frequency 0.2 1000 kHz 3
IN UVLO Rising Threshold VIN,UVLO 2.7 V 3
UVLO Hysteresis UVLO,HYS 0.1 V 3
Switching Frequency FSW 0.8 1 1.2 MHz 3
Minimum ON Time TON,MIN 100 nS 3
Maximum Duty Cycle DMAX 95 % 3
OVP Threshold VOVP 35 37 39 V Open LED 3
Thermal Shutdown Temperature TSD 150 °C 3
Thermal Hysteresis THYS 20 °C 3
Voltage on LX, IN, EN, OVP 42 V LX, IN, EN, OVP pins 2
Voltage on all other pins 4 V All other pins 2
Power Dissipation PD 2.6 W TA = 25°C, DFN3X3-10 2
Junction Temperature Range (absolute maximum) 150 °C 2
Lead Temperature (Soldering) 260 °C Soldering, 10 sec. 2
Storage Temperature Range -65 150 °C 2
Junction-to-ambient thermal resistance θJA 48 °C/W DFN3X3-10, Note 2 test board 2
Junction-to-case thermal resistance θJC 8 °C/W DFN3X3-10 2
Input Voltage Supply 2.8 40 V 2
Junction Temperature Range (recommended) -40 125 °C 2
Ambient Temperature Range -40 85 °C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 4) The PCB copper area associated with LX pin must 7

CAD (KiCad official)

  • Symbol: SY7301ADBC
  • Footprint: Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm
  • 3D model: DFN-10-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: sy7301adbc-etched.step / sy7301adbc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy7301adbc.step / sy7301adbc.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (11 pp, sha256 df4de34342f8b930, retrieved 2026-10-18, 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