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SY8077AAC

Public Made by Adom

by adom

Silergy Corp DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SY8077AAC

Silergy Corp · DC-DC Converters · SOT-23-5

SY8077AAC 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 EN input Enable control: pull high to turn the regulator on; do not float this pin.
2 GND power_in Ground pin.
3 LX output Inductor pin: connect to the switching node of the inductor; keep the PCB copper area associated with this pin minimal to avoid noise.
4 IN power_in Input pin: decouple to the GND pin with at least 10uF ceramic capacitor, placed close to the IN and GND pins.
5 FB input Output feedback pin: connect to the center point of the output resistor divider to set VOUT = 0.6 x (1 + R1/R2); optional C1 (10pF to 47pF) can be added to speed up transient response.

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
Input Voltage Range VIN 2.5 6.5 V 3
Feedback Reference Voltage VREF 0.588 0.6 0.612 V 3
Shutdown Current ISHDN 0.1 1 µA EN=0 3
Supply Input Voltage 2.5 6.5 V 2
Junction Temperature Range -40 125 °C 2
Ambient Temperature Range -40 85 °C 2
Supply Input Voltage 7 V 2
Power Dissipation PD 0.6 W TA = 25°C, SOT23-5 2
Junction Temperature Range 125 °C 2
Lead Temperature (Soldering, 10 sec.) 260 °C 2
Storage Temperature Range -65 150 °C 2
Package Thermal Resistance, junction-to-ambient θJA 170 °C/W Note 2: natural convection, TA = 25°C, JEDEC 51-3 board 2
Package Thermal Resistance, junction-to-case θJC 130 °C/W Note 2 2
Quiescent Current IQ 40 µA IOUT=0, VFB=VREF ⋅ 105% 3
PFET RON RDS(ON),P 260 mΩ 3
NFET RON RDS(ON),N 170 mΩ 3
PFET Current Limit ILIM 1.3 A 3
EN rising threshold VENH 1.5 V 3
EN falling threshold VENL 0.4 V 3
Input UVLO threshold VUVLO 2.5 V 3
UVLO hysteresis VHYS 0.1 V 3
Oscillator Frequency FOSC 1.5 MHz 3
Min ON Time 80 ns 3
Max Duty Cycle 100 % 3
Soft Start Time TSS 1 ms 3
Thermal Shutdown Temperature TSD 150 °C 3
Thermal Shutdown Hysteresis THYS 15 °C 3

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 3) The PCB copper area associated with LX pin must 6

CAD (KiCad official)

  • Symbol: SY8077AAC
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sy8077aac-etched.step / sy8077aac-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy8077aac.step / sy8077aac.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (9 pp, sha256 904dd0e4a9508bf2, 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