The TDA21201 is an integrated switch from Infineon that incorporates an intelligent MOSFET driver and two Power MOSFETs in a single package. It is available in 7-pin TO-220-7-3 and TO-263-7-2 packages. The TDA21201 can be used for DC/DC conversion from 12V to sub-3.5V and can handle up to 30A output current.
The Integrated Switch TDA21201 combines an intelligent MOSFET driver with two power MOSFETs in a single TO‑220 or TO‑263 package, providing a compact solution for 12 V to sub‑3.5 V DC/DC buck converters. It replaces separate driver, high‑side and low‑side MOSFETs, reducing part count, board space, and overall losses while offering built‑in protection.
Key specifications include a 30 A maximum output current, operation from 9 V to 15 V supply, thermal resistance of 1.9 K·W (junction‑to‑case), and an over‑temperature shut‑down at 150 °C. The device supports standard PWM controller interfaces, offers a three‑state input for shutdown, and requires no external bootstrap components.
| Supply voltage range (VCC) | 9 V – 15 V |
|---|---|
| Junction temperature limit | 150 °C |
| Thermal resistance (junction‑to‑case) | 1.9 K·W |
| Power dissipation | 10 W |
It operates with a supply voltage (VCC) between 9 V and 15 V.