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SY8047QDC

Public Made by Adom

by adom

Silergy Corp DC-DC Converters, TQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SY8047QDC

Silergy Corp · DC-DC Converters · TQFN-16-EP(3x3)

SY8047QDC from Silergy Corp, in a TQFN-16-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 LX output Inductor pin; connect this pin to the switching node of the inductor.
2 LX output Inductor pin; connect this pin to the switching node of the inductor.
3 NC unconnected No connection.
4 PG output Open-drain power good indicator: low if the output is below 90% of the regulation voltage, high otherwise; connect a pull-up resistor to the input.
5 FB input Output feedback pin; connect to the center point of the output resistor divider to program VOUT = 0.6V*(1+RH/RL), with VREF of 0.591V to 0.609V.
6 AGND power_in Analog ground pin.
7 NC unconnected No connection.
8 NC unconnected No connection.
9 SS passive Soft-start programming pin; do not float; connect a capacitor to ground so that tSS = Max(60µs, CSS×0.6V/1.6µA).
10 SVIN power_in Supply voltage for the control circuit; decouple to ground with at least 1uF ceramic capacitor. Input range is 2.5V to 5.5V.
11 PVIN power_in Supply voltage for the power circuit; decouple to ground with at least 22uF ceramic capacitor. Input range is 2.5V to 5.5V.
12 PVIN power_in Supply voltage for the power circuit; decouple to ground with at least 22uF ceramic capacitor. Input range is 2.5V to 5.5V.
13 EN input Enable input with integrated 4MΩ pull-down resistor; EN rising threshold is 1.5V and falling threshold is 0.4V.
14 PGND power_in Power ground pin.
15 PGND power_in Power ground pin.
16 NC unconnected No connection.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package TQFN-16-EP(3x3)
Category Power Management (PMIC)
Pins 17

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 5.5 V 3
Shutdown Current ISHDN 0.1 1 µA EN=0 3
Feedback Reference Voltage VREF 0.591 0.6 0.609 V 3
Supply Input Voltage 2.5 5.5 V 2
Junction Temperature Range -40 125 °C 2
Ambient Temperature Range -40 85 °C 2
All pins voltage 6 V 2
Power Dissipation PD 2.6 W TA = 25°C, QFN3x3 2
Junction Temperature Range 150 °C 2
Lead Temperature (Soldering, 10 sec.) 260 °C 2
Storage Temperature Range -65 150 °C 2
Package Thermal Resistance, junction-to-ambient θJA 38 °C/W JEDEC 51-3 low-conductivity single-layer board, natural convection, TA = 25°C 2
Package Thermal Resistance, junction-to-case θJC 8 °C/W 2

CAD (KiCad official)

  • Symbol: SY8047QDC
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: TQFN-16-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: sy8047qdc-etched.step / sy8047qdc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy8047qdc.step / sy8047qdc.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (6 pp, sha256 35a9f476df657f9b, retrieved 2026-10-19, 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