Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| Series | SuperSwitcher™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 27.9V |
| Current-Output | 1A |
| Frequency-Switching | 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The MIC4690YM is a single-channel, integrated power switch from Microchip/Micrel used to drive DC loads from a microcontroller. It combines a MOSFET with protection and simple control logic, enabling MCU-driven load switching without external transistors or drivers. The YM suffix indicates a small package (typically 8-pin). Key features often include undervoltage lockout, current‑limit/short‑circuit protection, thermal shutdown, and a logic input to enable/disable the switch. It’s commonly used to replace relays or discrete FETs in automotive and consumer electronics, for loads like LEDs, solenoids, small motors, and other DC devices. For exact electrical characteristics—voltage range, current limit, on‑resistance, timing, and pinout—refer to the MIC4690YM datasheet and the vendor’s product page.
Equivalent
MIC4690YM is a high-side load switch with enable and current limit. Direct cross-references depend on required specs. Common functional substitutes include:
- TI TPS22918/TPS22919 (1–1.5 A load switches with enable and current limit)
- ON Semiconductor NCP4680/NCP4681 (1 A range load switches with enable)
For an exact cross, please share operating voltage, desired current limit, packaging, and protection features.
- TI TPS22918/TPS22919 (1–1.5 A load switches with enable and current limit)
- ON Semiconductor NCP4680/NCP4681 (1 A range load switches with enable)
For an exact cross, please share operating voltage, desired current limit, packaging, and protection features.
Pinout
- Pin count: 8 pins (8-pin package, e.g., SOIC-8/MSOP-8; YM denotes the package)
- Function: Single-channel MOSFET gate driver (gate-drive IC) used to drive an external MOSFET from logic level inputs, typically for power-switching applications (includes input, enable, Vcc, GND, and output to gate).
- Function: Single-channel MOSFET gate driver (gate-drive IC) used to drive an external MOSFET from logic level inputs, typically for power-switching applications (includes input, enable, Vcc, GND, and output to gate).
Manufacturer
Manufacturer: Microchip Technology Inc. (the MIC4690 family was originally from Micrel and Microchip acquired Micrel in 2015).
What kind of company: Microchip is a global American semiconductor company that designs and manufactures microcontrollers, analog/linear ICs, memory, and other embedded processing solutions.
What kind of company: Microchip is a global American semiconductor company that designs and manufactures microcontrollers, analog/linear ICs, memory, and other embedded processing solutions.
Application
MIC4690YM is a Micrel/Microchip voltage regulator IC used in power-management designs. Typical application areas: portable and battery-powered equipment; microcontroller, DSP, and sensor power supplies; post-regulation for switching converters; embedded systems and LED-driver circuits; and automotive/industrial electronics requiring a stable, protected DC supply.
Package
8-pin SOIC (Small Outline Integrated Circuit) package.
