Design tool
TPSM53603
- Functional Safety-Capable
- 5-mm × 5.5-mm × 4-mm Enhanced HotRod™ QFN package
- Industry’s smallest 36-V, 3-A footprint: 85-mm2 solution size (single-sided)
- Low EMI: meets CISPR11 radiated emissions
- Excellent thermal performance: Up to 18 W output power at 85°C, no airflow
- Standard footprint: single large thermal pad and all pins accessible from perimeter
- Input voltage range: 3.8 V to 36 V
- Output voltage range: 1 V to 7 V
- Efficiency up to 95%
- Power-good flag
- Precision enable
- Built-in hiccup-mode short-circuit protection, overtemperature protection, start-up into pre-bias output, soft start, and UVLO
- Operating IC junction range: –40°C to +125°C
- Operating ambient range: –40°C to +105°C
- Shock and vibration tested to Mil-STD-883D
- Pin compatible with: 4-A TPSM53604 and 2-A TPSM53602
- Download the EVM Design Files for fast board design
- Create a custom design using the TPSM53603 with the WEBENCH Power Designer
The TPSM53603 power module is a highly integrated 3-A power solution that combines a 36-V input, step-down, DC/DC converter with power MOSFETs, a shielded inductor, and passives in a thermally-enhanced QFN package. The 5-mm x 5.5-mm x 4-mm, 15-pin package uses Enhanced HotRod QFN technology for improved thermal performance, small footprint, and low EMI. The package footprint has all pins accessible from the perimeter and a single large thermal pad for simple layout and easy handling in manufacturing.
The total solution requires as few as four external components and eliminates the loop compensation and magnetics part selection from the design process. The full feature set includes power good, programmable UVLO, prebias start-up, overcurrent, and overtemperature protections, making the TPSM53603 an excellent device for powering a wide range of applications.
Technical documentation
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View all 6 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPSM53603 36-V Input, 3-A Power Module in Enhanced HotRod™ QFN Package datasheet (Rev. B) | PDF | HTML | 30 Sep 2021 |
| Functional safety information | TPSM53603 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 24 Aug 2021 | |
| Application note | Bang for your Buck-An Intro to Buck Converter vs. Buck Power Module Comparison | PDF | HTML | 28 Aug 2020 | |
| Application note | Soldering Requirements for BQFN Packages (Rev. C) | 05 Mar 2020 | ||
| EVM User's guide | Using the TPSM53604EVM, TPSM53603EVM, and TPSM53602EVM (Rev. B) | 13 Dec 2019 | ||
| White paper | Enabling Small, Cool and Quiet Power Modules with Enhanced HotRod™ QFN Packaging | 19 Nov 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPSM53603EVM — 3.8-V to 36-V, 3-A step-down power module in a small package evaluation board
The TPSM53603 evaluation board (EVM) is configured to evaluate the operation of the TPSM53603 power module for current up to 3 A. The input voltage range is 3.8 V to 36 V. The output voltage range is 1 V to 7 V. The evaluation board makes it easy to evaluate the TPSM53603 operation.
User guide: PDF
| Package | Pins | Download |
|---|---|---|
| B3QFN (RDA) | 15 | View options |
Ordering & quality
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Support & training
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