TPS3619-33DGK

TPS3619-33DGK is TI’s fixed-threshold voltage supervisor (reset IC) for microcontrollers. It monitors the supply (VCC) and asserts a reset when the voltage falls below its 3.3 V threshold or during power-up/power-down to ensure reliable MCU startup and brown-out protection. The -33 indicates the 3.3 V reset threshold, and DGK denotes the 8-pin VSSOP package.
Key points:
- Fixed 3.3 V reset threshold
- Reset output (drives MCU reset line) and a manual reset input for external push-button
- Low quiescent current and fast response to supply changes
- Suitable for microcontrollers and other digital ICs needing reliable startup/shutdown behavior
- 8-pin VSSOP packaging (DGK)
For exact electrical specifications, operating voltage range, reset delay, and pinout, refer to the TPS3619 datasheet.

TPS3619-33DGK features:
- Fixed 3.3 V reset threshold
- Ultra-low quiescent current
- Power-on reset (POR) to guarantee proper MCU startup
- Manual reset input for external reset control
- Active-low, push-pull reset output suitable to drive MCU pins
- Small 8-pin DGK (VSSOP-8) package

- Pin count: 8 pins (VSSOP-8, DGK).
- Function: TPS3619-33DGK is a 3.3 V voltage supervisor/reset generator. It monitors the supply and provides a reset signal (power-on/brown-out protection) to a microcontroller/processor.

- Manufacturer: Texas Instruments Incorporated (TI).
- Company type: An American multinational semiconductor company that designs and manufactures analog, embedded processing, and related integrated circuits.

TPS3619-33DGK is a 3.3-V voltage detector/reset supervisor. Applications include:
- 3.3-V MCU/SoC, FPGA, and digital peripheral reset supervision
- Power-on reset (POR) and brown-out protection for 3.3-V rails
- Deterministic startup/shutdown sequencing in embedded systems
- Board-level reset source for multi-supply systems
- Supply monitoring and simple hot-swap protection in industrial/consumer electronics
In short: use it to ensure reliable reset behavior in any 3.3-V digital system with stable startup and during power fluctuations.

8-pin VSSOP package (DGK code).