component
RT7258GQW
Public Made by Adomby adom
Richtek Tech DC-DC Converters, DFN-14(3x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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| README.md | 13d ago |
| rt7258gqw-etched.glb | 13d ago |
| rt7258gqw-etched.step | 13d ago |
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| rt7258gqw.step | 13d ago |
RT7258GQW
Richtek Tech · DC-DC Converters · DFN-14(3x4)
RT7258GQW from Richtek Tech, in a DFN-14(3x4). 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 | FB | input | Feedback input connected to the converter output through an external resistive divider, with a typical feedback reference voltage of 0.808V. |
| 2 | PGOOD | output | Open-drain power good indicator (RT7258GQW only) needing a 100k pull-high resistor, pulled low when FB is below 0.75V and high impedance otherwise. |
| 3 | EN/SYNC | input | Enable or external frequency synchronization input; logic-high (2V < EN < 5.5V) enables the converter, logic-low shuts down with supply current below 3µA, and sync range is 300kHz to 1.5MHz. |
| 4 | VIN | power_in | Power input with an available range of 4.5V to 24V, requiring a 22µF or larger input capacitor to reduce voltage spikes. |
| 5 | VIN | power_in | Power input with an available range of 4.5V to 24V, requiring a 22µF or larger input capacitor to reduce voltage spikes. |
| 6 | VIN | power_in | Power input with an available range of 4.5V to 24V, requiring a 22µF or larger input capacitor to reduce voltage spikes. |
| 7 | NC | unconnected | No internal connection. |
| 8 | SW | power_out | Switching node at the output of the internal high side MOSFET, connected to the external low side N-MOSFET, inductor and bootstrap capacitor. |
| 9 | SW | power_out | Switching node at the output of the internal high side MOSFET, connected to the external low side N-MOSFET, inductor and bootstrap capacitor. |
| 10 | SW | power_out | Switching node at the output of the internal high side MOSFET, connected to the external low side N-MOSFET, inductor and bootstrap capacitor. |
| 11 | BOOT | passive | Bootstrap for the high side gate driver, with a 1µF ceramic capacitor connected between BOOT and SW. |
| 12 | VCC | power_out | BG driver bias supply (5V typical), decoupled with a 1µF X5R/X7R ceramic capacitor between VCC and GND. |
| 13 | BG | output | Gate driver output connected to the gate of the external low side N-MOSFET. |
| 14 | GND | power_in | Ground pin. |
| 15 | GND | power_in | Exposed pad ground, to be soldered to a large PCB ground area for maximum thermal dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | DFN-14(3x4) |
| Category | Power Management ICs |
| Pins | 15 |
CAD (KiCad official)
- Symbol:
RT7258GQW - Footprint:
Package_DFN_QFN:DFN-14-1EP_3x4mm_P0.5mm_EP1.7x3.3mm - 3D model: DFN-14(3x4) (KiCad packages3D, STEP)
- 3D model files:
rt7258gqw-etched.step/rt7258gqw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt7258gqw.step/rt7258gqw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (18 pp, sha256
2ee91701d6a57f5c, retrieved 2026-10-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).