Design tool
TPS62A2XX-Q1-DESIGN — TPS62A2XX-Q1 design resources
TPS62A2I4-Q1 and TPS62A2N4-Q1 full datasheet and design resources
TPS62A2N4-Q1
Automotive, 2.75V to 6V, 4A step-down converter in a 2.1 mm x 2.1 mm wettable-flanks QFN package
Data sheet
TPS62A2N4-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C TA
- Functional Safety-Capable
- Family of 1A, 2A, 3A, and 4A devices
- Input voltage range: 2.75V to 6V
- Output voltage from 0.4V to 3.6V
- Switching frequency from 1.5MHz to 4MHz
- External synchronization through the MODE/SYNC pin
- Fast transient response with COT control
- Quasi-fixed switching frequency during steady-state operation
- 16 internal compensation settings to reduce output capacitance
- Low RDS(on) MOSFETS: 23mΩ and 15mΩ
- Minimum on-time of 30ns (maximum) at VIN = 5V
- Selectable forced PWM mode through the MODE/SYNC pin
- Programmable spread spectrum clocking
- Adjustable soft-start, soft-stop timings
- Power-good output with window comparator
- Active output discharge
- Supports programmable soft-stop feature
- 2.1mm × 2.1mm WQFN package with wettable flanks
The TPS62A20x-Q1 or TPS62A2Nx-Q1 series are families of pin-to-pin compatible, high-efficiency, synchronous step-down DC-DC converters capable of delivering continuous output currents of 1A, 2A, 3A, and 4A. Using a constant on-time (COT) control topology, these devices provide fast transient response while maintaining quasi-fixed switching frequency operation during steady-state conditions.
To enhance loop performance, the devices offer 16 selectable internal compensation settings, enabling higher bandwidth and reducing output capacitance. Integrated low RDS(on) MOSFETs support continuous output up to 4A even at high ambient temperatures.
The switching frequency is adjustable from 1.5MHz to 4MHz and supports synchronization to an external clock. In PFM/PWM mode, the device automatically enters power-save mode at light loads to achieve high efficiency across the full load range. The device maintains the output voltage accuracy within ±0.8% in PWM mode for VOUT ≥ 0.5V. The soft-start feature provides controlled power-up and limits inrush current, while the soft-stop feature enables coordinated power-down sequencing.
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Technical documentation
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View all 2 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS62A20x-Q1 and TPS62A2Nx-Q1: 2.75V to 6V Input, 1A, 2A, 3A, 4A Automotive, Fast Transient, Synchronous Step-Down Converter datasheet | PDF | HTML | 10 Nov 2025 |
| Functional safety information | TPS62A204-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | PDF | HTML | 12 Nov 2025 |
Design & development
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Evaluation board
TPS62A204QEVM-116 — TPS62A204-Q1 evaluation module
TPS62A204QEVM-116 is an evaluation board for the TPS62A20XQ family of automotive, synchronous step-down buck converters optimized for high efficiency and compact design size. TPS62A204QEVM-116 delivers an output current up to 4A. This EVM can be used for TPS62A20x-Q1 as well as for the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN-FCRLF (RZX) | 13 | Ultra Librarian |
Ordering & quality
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