component
GS7253-ASO-R
Public Unreviewedby Ray
GSTEK Green Solution Technology DC-DC Controllers, SOIC-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownGS7253-ASO-R
GSTEK Green Solution Technology · DC-DC Controllers · SOIC-8-EP
GS7253-ASO-R from GSTEK Green Solution Technology, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BOOT | output | Bootstrap supply for the high-side gate driver. An external capacitor from PHASE to BOOT, together with the internal diode and VCC, generates the bootstrap voltage for the UGATE driver. Absolute max V_BOOT-GND = 36 V; V_BOOT-PHASE = 18 V. |
| 2 | UGATE | output | High-side gate driver output for the external N-channel MOSFET. Pull-up ~3.5 Ω, pull-down ~1.9 Ω at BOOT-PHASE=12V. Voltage range: -0.3V to V_BOOT+0.3V. |
| 3 | OCSET | input | Over-current setting pin. Connecting a resistor (R_OCSET) between OCSET and GND sets the over-current trip point. Sources ~20 uA (18-22 uA); OCP threshold VPHASE1 = -250 mV at V_OCSET=1.0V. Absolute max -0.3 to 6 V. |
| 4 | LGATE | output | Low-side gate driver output for the external N-channel MOSFET. Pull-up ~3.8 Ω, pull-down ~1.8 Ω at V_CC=12V. Voltage range: -0.3V to V_CC+0.3V. |
| 5 | VCC | power_in | Power supply input for control circuitry. Connect a well-decoupled 5V/12V supply; place a decoupling capacitor near the IC. Recommended 4.5-13.2 V; POR threshold ~4.2 V; absolute max 18 V. |
| 6 | FB | input | Feedback input to the converter. Connect a resistor divider from V_OUT to set the output voltage; internal reference V_FB = 0.6 V (±1%). UVP trip at 0.3 V (0.5×V_REF), OVP at 0.75 V (1.25×V_REF). |
| 7 | COMP/EN | output | Error amplifier output and enable input. Used with FB for loop compensation of the voltage-mode converter. Pulling this pin below ~0.3 V (enable threshold 0.3-0.35 V) disables the controller. |
| 8 | PHASE | input | Switch node. Connect to the source of the upper MOSFET and drain of the lower MOSFET. Serves as sink for the UGATE driver and monitors V_DS across the lower MOSFET for over-current protection. Rated -0.3 to 18 V (>200 ns) / -2 to 28 V (<200 ns). |
| 9 | GND | power_in | Signal and power ground (exposed thermal pad). Connect to system ground. Also provides thermal dissipation path; θ_JA = 75 °C/W. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GSTEK Green Solution Technology |
| Package | SOIC-8-EP |
| Category | Power Supply Chip |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
GS7253-ASO-R
CAD (KiCad official)
- Symbol:
GS7253-ASO-R - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GSTEK Green Solution Technology datasheet (16 pp, sha256
2d86855cc8b33a11, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).