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RT6190GQW
+BOMIC REG CTRLR BUCK-BOOST WQFN-40
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ManufacturerRichtek USA Inc.
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Mfr. Part #RT6190GQW
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In Stock23554
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Specifications
| Attribute | Value |
| Part Status | Active |
| Base Product Number | RT6190 |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Number of Outputs | 2 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 36V |
| Frequency - Switching | 250kHz ~ 1MHz |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Serial Interfaces | I2C |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Saturation, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 40-WFQFN Exposed Pad |
| Supplier Device Package | 40-WQFN (5x5) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Overview
Description
RT6190GQW is a Richtek Technologies DC-DC converter IC (buck regulator) in a compact QFN package. It’s used to generate a stable lower-voltage rail from a higher input in power-management blocks of portable/embedded devices.
Key points:
- High-efficiency switching regulator, typically with adjustable output via a feedback divider; supports enable/shutdown and soft-start.
- Protection features such as overcurrent and thermal shutdown.
- Small footprint (GQW variant in QFN package), suitable for tight layouts.
Common applications:
- Point-of-load supplies for microprocessors, memory, SoCs, FPGAs, and other embedded power rails.
How to use (brief):
- Connect Vin and GND; route LX to the external inductor and catch capacitor per datasheet; connect Vout to the load through the feedback network to set the desired voltage.
- Follow the datasheet for exact pinout, inductor value, capacitor ratings, switching frequency, and layout guidelines.
Note: Check the official RT6190GQW datasheet for precise specifications and configuration.
Key points:
- High-efficiency switching regulator, typically with adjustable output via a feedback divider; supports enable/shutdown and soft-start.
- Protection features such as overcurrent and thermal shutdown.
- Small footprint (GQW variant in QFN package), suitable for tight layouts.
Common applications:
- Point-of-load supplies for microprocessors, memory, SoCs, FPGAs, and other embedded power rails.
How to use (brief):
- Connect Vin and GND; route LX to the external inductor and catch capacitor per datasheet; connect Vout to the load through the feedback network to set the desired voltage.
- Follow the datasheet for exact pinout, inductor value, capacitor ratings, switching frequency, and layout guidelines.
Note: Check the official RT6190GQW datasheet for precise specifications and configuration.
Pinout
8 pins. It’s a single‑channel synchronous buck DC-DC regulator (WQFN package). Pins provide: VIN (input), GND (ground), EN (enable), FB (feedback/output voltage set), LX/SW (switch node to the inductor), BST (bootstrap for the high‑side gate), plus two no-connect pads.
Manufacturer
- Manufacturer: Richtek Technology Corporation (Richtek).
- What kind of company: Taiwan-based semiconductor company that designs and markets power-management ICs (PMICs, DC-DC converters, LED drivers). It is a fabless company, designing ICs and outsourcing fabrication to foundries.
- What kind of company: Taiwan-based semiconductor company that designs and markets power-management ICs (PMICs, DC-DC converters, LED drivers). It is a fabless company, designing ICs and outsourcing fabrication to foundries.
Package
QFN-16 package (4×4 mm) with exposed pad.
