The TK732xx is a power management chip from TOKO, which has a maximum output current capability of 5 A. It has built-in short circuit protection, load regulation, switch, reverse bias current protection switch, thermal shutdown, etc. It has a wide operating voltage range and supports continuous and pulsed current modes.
The TK732xx is a controller IC for a low‑dropout voltage regulator. It delivers standard output voltages from 2 V to 11 V and output currents from 100 mA up to 5 A when used with an external PNP power transistor. The device includes internal short‑circuit protection, thermal shutdown, reverse‑bias protection, and a CMOS/TTL‑compatible on/off control pin.
Typical applications include battery‑powered systems, cellular phones, wireless communications, portable instrumentation, and LAN receivers. The datasheet lists absolute maximum ratings, electrical characteristics, typical performance curves, and package information for the SOT‑23L‑8 device.
| Maximum Output Current | Up to 5 A |
|---|---|
| Operating Temperature Range | -30 °C to +80 °C |
| Reference Voltage | 1.25 V |
The TK732xx can provide up to 5 A of output current when used with an external PNP transistor.
The device is rated for temperatures from –30 °C to +80 °C.
The internal reference voltage is 1.25 V.