component
FR9205S6
Public Made by Adomby adom
Fitipower Integrated Tech DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, 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
markdownFR9205S6
Fitipower Integrated Tech · DC-DC Converters · SOT-23-6
FR9205S6 from Fitipower Integrated Tech, in a SOT-23-6. 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 | GND | power_in | Ground pin of the regulator. |
| 2 | LX | output | Power switching node that connects the external inductor; LX is rated -0.3 V to (VIN + 0.3 V), with dynamic excursions of -5 V to VIN + 5 V for up to 15 ns. |
| 3 | VIN | power_in | Power supply input with a 4.5 V to 18 V recommended range (20 V absolute maximum); place input capacitors as close as possible to VIN and GND. |
| 4 | FB | input | Voltage feedback input that connects to VOUT through a resistive divider and is regulated at 0.765 V. |
| 5 | SHDN | input | Enable input: pull high to turn the IC on and low to turn it off (input low 0.5 V max, input high 1.5 V min); connect to VIN through a 100 kΩ resistor for auto start-up. |
| 6 | BST | power_out | High-side gate drive boost pin; connect a 0.1 µF to 1 µF capacitor from this pin to LX. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Fitipower Integrated Tech |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Feedback Voltage | VFB | 0.753 | 0.765 | 0.776 | V | 4.5V≦VIN≦18V | 5 |
| VIN Quiescent Current | IDDQ | 0.25 | mA | H=2V, VFB=1V | 5 | ||
| VIN Shutdown Supply Current | ISD | 1 | 10 | μA | H=0V | 5 | |
| Feedback Input Current | IFB | 0.01 | 0.1 | μA | VFB=1V | 5 | |
| High-Side MOSFET RDS(ON) | RDS(ON) | 145 | mΩ | 5 | |||
| Low-Side MOSFET RDS(ON) | RDS(ON) | 90 | mΩ | 5 | |||
| Valley Current Limit | ILIMIT | 3 | A | Note 3 | 5 | ||
| On Time | TON | 130 | ns | VIN=12V, VOUT=1.05V | 5 | ||
| Minimum Off Time | TOFF(MIN) | 200 | ns | VFB=0.4V | 5 | ||
| Input Supply Voltage UVLO Threshold | VUVLO(Vth) | 4 | V | VIN Rising | 5 | ||
| UVLO Threshold Hysteresis | VUVLO(HYS) | 0.35 | V | 5 | |||
| Internal Soft-Start Period | TSS | 1.5 | ms | Note 3 | 5 | ||
| EN Input Low Voltage | VIL | 0.5 | V | 5 | |||
| EN Input High Voltage | VIH | 1.5 | V | 5 | |||
| EN Input Current | 2 | μA | H=2V | 5 | |||
| Thermal Shutdown Threshold | TSD | 160 | °C | Note 3 | 5 | ||
| Thermal Shutdown Hysteresis | THYS | 30 | °C | Note 3 | 5 | ||
| Supply Voltage VIN (absolute maximum) | VIN | -0.3 | 20 | V | 4 | ||
| Enable Voltage H (absolute maximum) | H | -0.3 | 20 | V | 4 | ||
| LX Voltage (absolute maximum) | VLX | -0.3 | V | Max printed as VIN +0.3V | 4 | ||
| Dynamic LX Voltage | VLX | -5 | V | 15ns duration; max printed as VIN +5V | 4 | ||
| BST Pin Voltage (absolute maximum) | VBST | -0.3 | V | Max printed as VLX +6.5V | 4 | ||
| All Other Pins Voltage (absolute maximum) | -0.3 | 6 | V | 4 | |||
| Maximum Junction Temperature | TJ | 150 | °C | 4 | |||
| Storage Temperature | TS | -65 | 150 | °C | 4 | ||
| Lead Temperature (Soldering) | 260 | °C | 10 sec soldering | 4 | |||
| Package Thermal Resistance, junction-to-ambient | θJA | 250 | °C/W | SOT-23-6; Note 2: JEDEC-51-7 4-layer board, 25°C ambient | 4 | ||
| Package Thermal Resistance, junction-to-case | θJC | 110 | °C/W | SOT-23-6 | 4 | ||
| Supply Voltage VIN (recommended operating) | VIN | 4.5 | 18 | V | 4 | ||
| Operation Temperature Range | TA | -40 | 85 | °C | 4 |
CAD (KiCad official)
- Symbol:
FR9205S6 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
fr9205s6-etched.step/fr9205s6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fr9205s6.step/fr9205s6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Fitipower Integrated Tech datasheet (12 pp, sha256
5449c7c974b704e3, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).