Calculation tool
Data sheet
TPS5401
- 3.5-V to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads With a Pulse-
Skipping Eco-mode™ Control Scheme - 116-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power-Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V ±3.5% Internal Voltage Reference
- MSOP10 With PowerPAD Package
- Supported by WEBENCH
- APPLICATIONS
- 12-V and 24-V Industrial and Commercial
Low-Power Systems - E-Meters
- 12-V and 24-V Industrial and Commercial
All other trademarks are the property of their respective owners
The TPS5401 device is a 42-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the supply current to 116 µA when outputting regulated voltage with no load. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching-frequency range allows efficiency and external component size optimization. Frequency foldback and thermal shutdown protect the part during an overload condition.
The TPS5401 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
Technical documentation
No results found. Please clear your search and try again.
View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS5401 0.5-A, 42-V Input, Step-Down Converter datasheet (Rev. B) | PDF | HTML | 10 Feb 2016 |
| Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 05 Mar 2015 | ||
| Application note | Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF | 17 Apr 2014 | ||
| Application note | Improved Load Current Capability for Cap-Drop Off-Line Power Supply for E-Meter | 27 Oct 2011 | ||
| EVM User's guide | TPS5401EVM-708 0.5-A, SWIFT™ Regulator Evaluation | 10 Jan 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS5401EVM-708 — Evaluation Module for TPS5401 0.5A Step-Down SWIFT™ Converter
The TPS5401EVM-708 is a fully assembled and tested circuit for evaluating the TPS5401 Step Down SWIFT Converter. The TPS5401EVM-708 accepts a 7.5V to 35V input and provides a 5V output at 0.5A.
User guide: PDF
Simulation model
TPS5401 Unencrypted PSpice Transient Model Package (Rev. A)
SLVMAZ9A.ZIP (65 KB) - PSpice Model
Reference designs
TIDA-00177 — Two-Wire Interface to a HIPERFACE DSL® Encoder Reference Design
The TIDA-00177 reference design is an EMC compliant industrial interface to a two-wire HIPERFACE DSL® encoder. Applications include industrial servo drives.
The design features a 3.3-V supply RS485 transceiver and line termination and coupling for encoder power over RS485 as per HIPERFACE DSL (...)
Reference designs
TIDA-00178 — Interface to a Sin/Cos Encoder with Sitara AM437x Reference Design
The TIDA-00178 reference design is an EMC compliant industrial interface to Sin/Cos position encoders. Applications include industrial drives, which require accurate speed and position control.
The design utilizes a 16-bit dual sample ADC with drop-in compatible 14- or 12-bit versions available, (...)
Reference designs
TIDA-01070 — HVAC Coil Airflow Sensor Reference Design for Predictive Maintenance in Air Filter Replacement
This design provides a reference for monitoring airflow efficiency and temperature through heat ventilation and air conditioner (HVAC) systems. The reference design is used in conjunction with solid state relays and piezoelectric vibration sensors to monitor and react accordingly to low airflow and (...)
Reference designs
TIDM-1PHMTR-ESD — One-Phase Metrology with Enhanced ESD Protection Reference Design
This reference design implements an ANSI/IEC Class 0.2 one-phase energy meter with enhanced ESD protection. The design also features communications through ZigBee™ connectivity. The e-meter SoC is used to perform all metrology functions and sends active power results to the CC2530EM (...)
Reference designs
TIDM-TWOPHASEMETER-I2040 — Low-Cost Single/Dual-Phase Isolated Electricity Measurement Reference Design
The design implements a low-cost single- or dual-phase electricity measurement solution. The design separates a small metrology MCU from the host MCU, providing both protection from the AC mains and also isolation of the energy measurement function from corruption by other software. The small, (...)
Reference designs
TIDA-00202 — Interface to a HIPERFACE Position Encoder Reference Design
The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.