TDA21240AUMA1
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 30-PowerTFQFN |
| Interface | PWM |
| Mfr | Infineon Technologies |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Technology | Power MOSFET |
| Applications | Synchronous Buck Converters |
| Supplier Device Package | PG-IQFN-30-2 |
| Output Configuration | Half Bridge |
| Voltage - Supply | 4.5V ~ 7V |
| Fault Protection | Shoot-Through, UVLO |
| Current - Output / Channel | 40A |
| Voltage - Load | 5V ~ 16V |
| Load Type | Inductive |
| Rds On (Typ) | - |
| Current - Peak Output | - |
| Features | Bootstrap Circuit |
| Package | Tape & Reel (TR) |
| Product Status | Obsolete |
| Base Product Number | TDA21240 |
| REACH Status | REACH Unaffected |
| Standard Package | 5,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TDA21240AUMA1 Synchronous Buck Power Stage
The TDA21240AUMA1 is a high-performance synchronous buck power stage (multichip module) manufactured by Infineon Technologies, engineered for high-density voltage regulation in industrial and consumer applications. Housed in a compact 30-pin PG-IQFN-30-2 surface-mount package (4×4×1.05mm footprint), it operates over an industrial temperature range of -40°C to +125°C, with an input voltage range of 4.5V to 16V and a maximum average output current of 40A, supporting switching frequencies above 500kHz for high-efficiency power conversion. This device integrates a high-side and a low-side 25V power MOSFET with a robust gate driver, and features a typical quiescent current of 840µA for energy efficiency.
Equipped with comprehensive protection and control features, the TDA21240AUMA1 ensures safe and stable operation in harsh environments. It includes a built-in bootstrap diode, under-voltage lockout (UVLO), shoot-through protection, and thermal warning (via PH FLT# pin) to prevent device damage. The tri-state PWM input is compatible with 3.3V logic, while the remote driver disable function (via EN pin) enables flexible system control. Its integrated power MOSFETs are optimized for 5V gate driving, delivering excellent efficiency at both high and light loads, and the compact package reduces PCB layout inductance, enhancing switching performance and overall system reliability with minimal external components.
Alternative buck power stages
● TDA21240AUMA1RL: Infineon's variant with identical electrical specs, 30-pin IQFN package, and tape-and-reel packaging for high-volume production
● TDA21470AUMA1: Infineon's enhanced power stage with 60A output current, pin-compatible for high-current upgrade designs
● MAX17502AETB: Texas Instruments' 40A synchronous buck power stage, similar voltage range and protection for cross-supplier substitution
● ADP2389ACPZ: Analog Devices' high-density buck power stage, comparable switching frequency and current capacity for industrial applications
● IR35201MTRPBF: Infineon (IR) 40A power stage with integrated MOSFETs, compatible functionality for voltage regulation substitutions
