TPS7B8133DGNR

TPS7B8133DGNR is a fixed-output low-dropout regulator (LDO) from TI’s TPS7B family. It delivers a stable 3.3 V rail from a higher input voltage, with emphasis on low dropout, low output noise, and good power-supply rejection. It includes an enable (EN) input for simple power sequencing and control, and incorporates protection features such as current limit and thermal shutdown for robust operation. The DGNR suffix indicates a small, RoHS-compliant packaging option (8-pin, thermally enhanced, suitable for tape-and-reel procurement).
Typical applications include microcontrollers, sensors, and other digital/peripheral circuits that need a clean 3.3 V supply in battery-powered, automotive, or industrial systems. Proper use requires an appropriate input capacitor and a low-ESR output capacitor to ensure stability per the datasheet. For exact electrical specs (input range, dropout, quiescent current, PSRR) and package details, refer to the TI TPS7B8133DGNR datasheet and design guidelines.

Direct one-to-one equivalents aren’t fixed; use TI’s Cross Reference tool to map TPS7B8133DGNR to exact parts. For functionally similar 3.3-V LDOs from other vendors: Analog Devices ADP3330/ADP3333/ADP3336; STMicroelectronics LD390xx/LD3985; Linear Technology LT1763. Verify dropout, quiescent current, noise, package and pinout.

- Fixed 3.3-V output low-dropout regulator (LDO)
- Ultra-low-noise with high PSRR (suitable for sensitive analog/RF circuits)
- Very low quiescent current
- Fast line and load transient response
- Enable pin for turnkey shutdown/control
- Overcurrent/short-circuit protection
- Thermal shutdown protection
- RoHS-compliant package (DGNR suffix indicates compliant packaging) and suitable for compact layouts across wide operating temp ranges
Note: For exact electrical specs (input range, dropout, max current, exact PSRR, etc.), refer to the TPS7B8133DGNR datasheet.

- Pin count: 8 pins (DGNR package, VSON-8 style)
- Function: Fixed 3.3 V low-dropout regulator (TPS7B8133) with enable and power-good features. It provides VIN to VOUT regulation with a GND reference; EN can disable/enable the regulator; PG (power-good) indicates output status. Remaining pins are typically no-connects or the exposed pad/GND as per package.

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits and related silicon solutions for electronics worldwide.

TPS7B8133DGNR is a fixed 3.3-V LDO from TI’s TPS7B family. It is used to generate a clean, local 3.3-V rail in compact, energy‑efficient systems. Common application areas include:
- Power rails for microcontrollers, DSPs, MEMS sensors, and ADC/DAC front‑ends
- Battery-powered/portable devices (IoT nodes, wearables, handheld meters)
- Automotive and industrial electronics requiring a robust 3.3-V supply
- RF and wireless modules and embedded communications subsystems
- Instrumentation, test equipment, and consumer electronics where space and heat are at a premium

TPS7B8133DGNR uses an 8‑pin VSSOP (3×3 mm) package; “NR” denotes Tape & Reel packaging.