TDA21470
70 A integrated synchronous-buck power stage with current and temperature reporting
Key details
| Part Number | TDA21470 |
|---|---|
| Manufacturer | Infineon Technologies |
| Category | Integrated Power Stage |
| Lifecycle Status | NRND |
| Series | OptiMOS TDA2147x |
| Package / Case | 39-pad PG-IQFN, 5 mm x 6 mm |
| Pin Count | 39 |
| Operating Temperature | -40 C to +125 C junction class |
| Last Verified | 2026-07-24 |
Part information
TDA21470 Overview
TDA21470 is a Infineon Technologies 70 A integrated synchronous-buck power stage with current and temperature reporting supplied in 39-pad PG-IQFN, 5 mm x 6 mm. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Topology | Integrated synchronous buck power stage |
|---|---|
| Output Current | 70 A class |
| Input Voltage | 4.25 V to 16 V |
| Switching Frequency | Up to 1.5 MHz |
| Telemetry | 5 mV/A current sense and temperature output |
Package and Ordering Notes
The listed package is 39-pad PG-IQFN, 5 mm x 6 mm with 39 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as NRND; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
TDA21470 is not recommended for new designs. Confirm support for the existing program and qualify a current alternative for new designs.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Infineon Technologies documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
TDA21470 FAQ
What is TDA21470?
TDA21470 is a Infineon Technologies 70 A integrated synchronous-buck power stage with current and temperature reporting. It belongs to the OptiMOS TDA2147x series.
What are the key specifications of TDA21470?
Topology is Integrated synchronous buck power stage, and Output Current is 70 A class. Refer to the manufacturer datasheet for limits, test conditions and revision-controlled values.
What package does TDA21470 use?
TDA21470 is supplied in 39-pad PG-IQFN, 5 mm x 6 mm with 39 pins, leads, balls or contacts. Verify the exact footprint and ordering suffix before PCB release.
Is TDA21470 still in production?
TDA21470 is not recommended for new designs. It may remain available for existing programs, but a current-generation alternative should be qualified for new designs.
What should be checked before sourcing TDA21470?
Confirm the complete MPN, electrical ratings, package, temperature grade and required quantity. Possible alternatives include TDA21472 or TDA21475 after verifying controller timing, current rating and footprint, but compatibility must be verified independently.
Lifecycle and sourcing review
This part may not be recommended for new designs. Confirm package, electrical requirements, firmware behavior and qualification needs before selecting an alternative.
TDA21470 is not recommended for new designs. Confirm support for the existing program and qualify a current alternative for new designs.
Potential alternative part numbers
Verify package, pinout, voltage, firmware behavior and qualification before substitution.