Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Switch Type | USB Switch |
| Number of Outputs | 1 |
| Ratio - Input: Output | 1:1 |
| Output Configuration | High Side |
| Output Type | N-Channel |
| Interface | On/Off |
| Voltage - Load | 2.7V ~ 6V |
| Voltage - Supply (Vcc/Vdd) | Not Required |
| Current - Output (Max) | 500mA |
| Rds On (Typ) | 70mOhm |
| Input Type | Non-Inverting |
| Features | Status Flag |
| Fault Protection | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Supplier Device Package | SOT-23-3 |
Tổng quan
Description
RT9742SNGV is a Richtek power-management IC—a high-efficiency synchronous buck DC-DC regulator used to generate stable supply voltages in portable electronics. It combines a switching regulator with integrated MOSFETs in a compact SNGV package, enabling efficient voltage conversion from higher to lower rails in a small footprint. Typical features include current-mode control, programmable output voltage, enable/soft-start, and protections such as overcurrent, thermal, and short-circuit protection. It’s suitable for PMICs and local regulators in smartphones, tablets, wearables, and other battery-powered devices. For exact specs (input range, output voltage options, maximum current, switching frequency) and layout guidelines, consult the RT9742SNGV datasheet.
Pinout
- Pin count: 8 pins (VSON-8 package, SNGV suffix).
- Function: One-channel synchronous buck DC-DC regulator (high-efficiency step-down converter) with integrated power MOSFETs, plus pins for EN, FB/COMP, VIN, GND, and SW.
- Function: One-channel synchronous buck DC-DC regulator (high-efficiency step-down converter) with integrated power MOSFETs, plus pins for EN, FB/COMP, VIN, GND, and SW.
Manufacturer
Manufacturer: Richtek Technology Corp. (Richtek).
What kind of company: A Taiwanese fabless semiconductor company that designs and markets power-management ICs (PMICs, DC-DC converters, battery chargers, LED drivers, etc.).
What kind of company: A Taiwanese fabless semiconductor company that designs and markets power-management ICs (PMICs, DC-DC converters, battery chargers, LED drivers, etc.).
Application
RT9742SNGV is a Richtek DC-DC converter IC for efficient generation of low-voltage rails. Typical applications include:
- Portable devices (smartphones, tablets, wearables)
- Notebook/embedded systems for core voltage rails
- LED backlight drivers and general LED lighting
- Consumer electronics (set-top boxes, peripherals)
- Automotive and industrial power management in compact designs
- Portable devices (smartphones, tablets, wearables)
- Notebook/embedded systems for core voltage rails
- LED backlight drivers and general LED lighting
- Consumer electronics (set-top boxes, peripherals)
- Automotive and industrial power management in compact designs
Package
RT9742SNGV is in an 8-pin VSON package (approx. 2.9 × 3.0 mm).
