TPS3128E18DBVR

TPS3128E18DBVR is a fixed-output step-down (buck) DC-DC regulator from Texas Instruments. It provides a regulated 1.8-V output and is designed to power Vcore-type rails in microprocessors and other digital ICs. The device integrates the switching regulator and control logic in a compact DBV package and requires only input and output capacitors (no external feedback resistors). Key features include an enable input, a power-good (PG) output, current-limit protection, and thermal shutdown for robust operation. It offers high efficiency over a wide input range and cold-start performance into moderate loads. Typical applications include 1.8-V rails in embedded systems, FPGAs, ASICs, microcontroller cores, and portable equipment. For exact electrical specs (input range, switching frequency, max output current, protection thresholds) and pinout, consult the TPS3128E18DBVR datasheet on TI’s website.

To give precise equivalents, please specify:
- Cross-reference scope: TI-only or cross-vendor
- Required features: watchdog, manual reset, reset delay
- Package and operating range (voltage, temp)
With that, I’ll provide exact TI cross-ref and suitable equivalents from other vendors. (Note: many “1.8 V” reset supervisors exist; exact matches depend on features and package.)

TPS3128E18DBVR is a 1.8V fixed-threshold voltage supervisor with reset output. Key features:
- 1.8V fixed-threshold voltage monitor with undervoltage lockout
- Power-on reset to guarantee MCU starts in a known state
- Manual reset input for external forcing of reset
- Push-pull/reset output, active-low (RESET#)
- Glitch/filtering for clean reset events; fixed POR delay
- Very low quiescent current
- 8-pin package (DBVR suffix indicates RoHS, tape-and-reel) suitable for compact applications
Note: For exact electrical specs (threshold accuracy, reset delay, current, temperature range), please refer to the datasheet.

- Pin count: 8 pins (VSSOP-8, DBV package).
- Function: 1.8-V microprocessor reset supervisory circuit (voltage detector) that monitors the 1.8 V supply and asserts a reset signal to the processor when the supply falls out of spec.

- Manufacturer: Texas Instruments (TI)
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits.

TPS3128E18DBVR is a 1.8V rail voltage supervisor that monitors the 1.8V supply and generates a reset signal for 1.8V digital devices. It is intended for power-on reset, brown-out protection, and safe startup/shutdown in 1.8V systems. Typical applications include 1.8V microcontrollers, FPGAs/SoCs, 1.8V memory, and other 1.8V digital ICs; portable and battery-powered electronics; telecom/networking gear; embedded systems; and automotive electronics requiring robust 1.8V rail supervision. It provides a reliable reset to ensure proper device boot and operation.

TPS3128E18DBVR comes in a DBV package, which is TI’s VSON-8 (3×3 mm) package. It’s supplied in Tape & Reel (R).