The TK732xx is an electronic component produced by TOKO. It has a maximum output current of 5A, internal short circuit protection, excellent load regulation, CMOS/TTL-compatible switches, internal reverse bias current protection switches, internal thermal shutdown, wide operating voltage range, high impedance VSENSE pin (off mode), and continuous and pulsed current modes. The component is widely used in battery powered systems, cellular/cordless telephones, radio control systems, wireless communication systems, portable instrumentations, portable computers, personal digital assistants, local area network (LAN) receivers, lithium ion battery chargers and power recovery for microprocessors.
The TK732xx is a controller IC for a low‑dropout voltage regulator that, together with an external PNP power transistor, delivers standard output voltages from 2 V to 11 V and output currents up to 5 A. It includes internal protections such as short‑circuit, reverse‑bias, and thermal shutdown, and offers both continuous and pulsed current limit modes.
The document lists absolute maximum ratings, detailed electrical characteristics, typical performance curves, application examples (battery‑powered systems, portable computers, LAN receivers, etc.), and package information for the SOT‑23L‑8 footprint. Ordering codes and voltage codes are also provided for selecting the appropriate variant.
| Maximum Output Current | 5 A |
|---|---|
| Output Voltage Range | 2 V – 11 V |
| Operating Temperature Range | -30 °C to +80 °C |
| Supply Voltage Range | 1.8 V – 14.0 V |
The TK732xx can deliver up to 5 A of output current.
The device operates with a supply voltage from 1.8 V to 14.0 V.
Yes, it includes an internal thermal shutdown circuit that limits junction temperature to below 150 °C.
The regulator is supplied in an SOT‑23L‑8 package.