RB751S40T5G

RB751S40T5G is a fixed-output low-dropout regulator (LDO) from ROHM’s RB751S family. It provides a stable 4.0 V output from a lower input supply in a compact 5-pin SOT-23 (T5G) package. Designed for small, battery-powered or space-constrained electronics, it typically delivers about 150 mA of output current with low quiescent current and good line/load regulation. Features commonly include overcurrent protection and thermal shutdown for protection in compact designs. Suitable applications include microcontroller boards, sensors, wearables, and other portable devices requiring a compact, fixed 4.0 V supply. For exact input voltage range, dropout voltage, quiescent current, accuracy, and pinout, consult the official ROHM RB751S40T5G datasheet.

Do you mean the ROHM RB751S-40 (RB751S40T5G) LDO? I need the exact output voltage, max output current and package to list true equivalents (e.g., MCP1700, AMS1117, LD1117, TLV700). Please confirm Vout and Iout or share the datasheet link.

RB751S40T5G is a ROHM fixed‑output LDO regulator in a 5‑pin SOT‑23 (T5G) package. Key features:
- Fixed output: 4.0 V
- 5‑pin SOT‑23 (T5G) package
- Ultra‑low quiescent current (suitable for battery Power)
- Low dropout voltage
- Built‑in protection: overcurrent/short‑circuit and thermal shutdown
- Enable pin to turn the regulator on/off
- Requires an external low‑ESR output capacitor for stability
- RoHS compliant
Note: for exact electrical specs (input range, exact currents, tolerances), consult the official datasheet.

Pin count: 2 (anode and cathode).
Function: RB751S40T5G is a two‑terminal Zener/clamping diode used for voltage regulation and transient/overvoltage protection (voltage reference and surge/ESD clamping).

Manufacturer: ROHM Co., Ltd. (ROHM Semiconductor).
What kind of company: ROHM is a Japanese semiconductor manufacturer that designs and produces electronic components—integrated circuits, discrete semiconductors (including diodes and transistors), power-management devices, optoelectronics and sensors—for automotive, industrial, and consumer electronics markets.

RB751S40T5G is a fixed-output, low-dropout regulator (LDO) in a small SOT-23-5 package. Applications include:
- Power rails for microcontrollers, DSPs, and RF front-ends
- Sensors and MEMS in IoT wearables and portable devices
- Portable medical and consumer electronics
- Automotive and industrial electronics needing a compact, low-quiescent LDO with good PSRR
- Post-regulator stage in small DC–DC converter designs
Any application requiring a stable, low-noise supply in a compact form factor.

It uses a 5‑pin SOT‑23/SC‑70 package (SC‑70‑5).