component
RT8077GQW
Public Made by Adomby adom
Richtek Tech DC-DC Converters, WDFN-8(2x2). 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
markdownRT8077GQW
Richtek Tech · DC-DC Converters · WDFN-8(2x2)
RT8077GQW from Richtek Tech, in a WDFN-8(2x2). 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 | RT | input | Switching frequency setting pin; a resistor from this pin to GND sets the switching frequency within the 300kHz to 2MHz range. |
| 2 | GND | power_in | Signal ground; all small-signal and compensation components should connect to this ground, which connects to PGND at one point. |
| 3 | LX | output | Switch node connected to the inductor; it has a high-frequency voltage swing and should be kept within a small area. |
| 4 | PGND | power_in | Power ground; connect close to the negative terminal of CIN and COUT. |
| 5 | PVDD | power_in | Power input supply with a specified range of 2.6V to 5.5V; decouple to PGND with a capacitor. |
| 6 | EN | input | Enable control input; logic-high (1.2V < EN < 5.5V) enables the converter and logic-low forces shutdown mode. |
| 7 | FB | input | Feedback voltage input receiving the resistor-divided output voltage, regulated to the internal 0.8V reference. |
| 8 | COMP | passive | Compensation node; the current comparator threshold rises with this control voltage, and external compensation elements connect here to stabilize the loop. |
| 9 | GND | power_in | Exposed pad, to be connected to GND per the PCB layout guidance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | WDFN-8(2x2) |
| Category | Power Management (PMIC) |
| Pins | 9 |
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 Reference Voltage | VREF | 0.788 | 0.8 | 0.812 | V | 4 | |
| EN Input Voltage Logic-High | VEN_H | 1.2 | 5.5 | V | 4 | ||
| EN Input Voltage Logic-Low | VEN_L | 0.4 | V | 4 | |||
| Feedback Leakage Current | IFB | 0.1 | 0.4 | μA | VFB = 3.3V | 4 | |
| Quiescent Current (Shutdown) | 1 | μA | Shutdown, VEN = 0V | 4 | |||
| Switching Frequency | 1.44 | 1.8 | 2.16 | MHz | ROSC = 180kΩ | 4 | |
| Adjustable Switching Frequency Range | 0.3 | 2 | MHz | 4 | |||
| Switch High-Side On-Resistance | RDS(ON)_P | 90 | 130 | mΩ | ISW = 0.3A, PVDD = 3.6V | 4 | |
| Switch Low-Side On-Resistance | RDS(ON)_N | 90 | 130 | mΩ | ISW = 0.3A, PVDD = 3.6V | 4 | |
| Peak Current Limit | ILIM | 3 | A | 4 | |||
| Supply Input Voltage, PVDD (recommended operating) | PVDD | 2.6 | 5.5 | V | 4 | ||
| Junction Temperature Range (recommended operating) | -40 | 125 | °C | 4 | |||
| Ambient Temperature Range (recommended operating) | -40 | 85 | °C | 4 | |||
| Supply Input Voltage, PVDD (absolute maximum) | PVDD | -0.3 | 6.5 | V | 4 | ||
| Power Dissipation, WDFN-8L 2x2 | PD | 0.833 | W | TA = 25°C | 4 | ||
| Package Thermal Resistance, junction to ambient, WDFN-8L 2x2 | θJA | 120 | °C/W | WDFN-8L 2x2 | 4 | ||
| Junction Temperature (absolute maximum) | 150 | °C | 4 | ||||
| Lead Temperature (soldering, 10 sec) | 260 | °C | Soldering, 10 sec | 4 | |||
| Storage Temperature Range | -65 | 150 | °C | 4 | |||
| ESD Susceptibility HBM | 2 | kV | HBM (Human Body Model) | 4 |
CAD (KiCad official)
- Symbol:
RT8077GQW - Footprint:
Package_DFN_QFN:WDFN-8-1EP_2x2mm_P0.5mm_EP0.8x1.2mm - 3D model: WDFN-8(2x2), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.75 mm nominal WSON height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
rt8077gqw-etched.step/rt8077gqw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt8077gqw.step/rt8077gqw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (15 pp, sha256
5943354b08d56e5c, 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).