RT1720GF

@@ -0,0 +1,51 @@+# 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)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Richtek Tech datasheet](docs/rt1720gf-datasheet.pdf) (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](docs/rt1720gf-datasheet.pdf)

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