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Name	Last commit message	Last updated
docs	rt1720gf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
viewers	rt1720gf: viewers · Ray	1mo ago
package.json	Publish 0.1.0 · Ray	1mo ago
page.json	rt1720gf: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray	17h ago
README.md	rt1720gf: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	19d ago
rt1720gf-etched.fit.json	rt1720gf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
rt1720gf-etched.glb	rt1720gf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
rt1720gf-etched.step	rt1720gf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
rt1720gf.glb	Publish 0.1.0 · Ray	1mo ago
rt1720gf.kicad_mod	Publish 0.1.0 · Ray	1mo ago
rt1720gf.kicad_sym	Publish 0.1.0 · Ray	1mo ago
rt1720gf.lbr	Publish 0.1.0 · Ray	1mo ago
rt1720gf.step	Publish 0.1.0 · Ray	1mo ago

RT1720GF

Richtek Tech · Supervisor and Reset ICs · MSOP-10

RT1720GF from Richtek Tech, in a MSOP-10. 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	FB	input	Voltage Regulator Feedback Input. Connect a resistive divider from output to FB to GND to set the maximum output voltage and voltage regulation set-point. Internal reference is 1.25V.
2	VOUT	input	Output Voltage Connection. VOUT is the lower reference voltage for the GATE charge pump. Absolute maximum -0.3V to 65V; recommended 5V to 60V.
3	GATE	output	N-MOSFET Gate Drive Output. Driven by internal charge pump to about VOUT+12V to fully enhance the external load switch MOSFET. Fast 80mA shut-off during overvoltage.
4	SNS	input	Current Sense Input. Connect a sense resistor from VCC to SNS to monitor the current through the external N-MOSFET. Sense threshold nominally 50mV.
5	VCC	power_in	Positive Supply Voltage Input. Operating range 5V to 80V; absolute maximum -60V to 90V (reverse-supply tolerant). Typical ICC 2.3mA active, 7uA in shutdown.
6	SHDN	input	Shutdown Control Input (active-low). Disables all functions and reduces VCC quiescent current to about 7uA when pulled low. Absolute maximum -0.3V to 45V.
7	FLT	output	Open-Collector Fault Output (active-low). Goes low when the fault timer at TMR exceeds 1.2V during a sustained overvoltage/overcurrent event. Requires external pull-up; absolute maximum 12V.
8	PGOOD	output	Open-Collector Power Good Indicator. Rises (releases) when the load switch turns on fully and the MOSFET's source approaches its drain voltage. Requires external pull-up; absolute maximum 12V.
9	GND	power_in	Ground return for the device.
10	TMR	passive	Fault Timer Input. Connect a capacitor from TMR to GND to program the maximum time the part is allowed to remain in voltage regulation or current regulation mode. Charged by 28.5uA during faults, discharged by 3.5uA. TMR capacitor >= 0.47uF recommended.

Key specifications

Parameter	Value
Manufacturer	Richtek Tech
Package	MSOP-10
Category	PMIC
Pins	10

Ordering variants

Same part, different packaging or reel option.

RT1720GF

CAD (KiCad official)

Symbol: RT1720GF
Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
3D model: MSOP-10 (KiCad packages3D, STEP)
3D model files: rt1720gf-etched.step / rt1720gf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt1720gf.step / rt1720gf.glb are the bare package body.

Provenance

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

Datasheet: Richtek Tech datasheet (19 pp, sha256 69de9b5ba9736858, retrieved 2026-08-17, tier: manufacturer)
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).

Datasheet PDF