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Overview
| Topology | Buck Converter |
| Input voltage | 24 V |
| Switching frequency | 100-2500 kHz |
| Output 1 | 12 V |
| IC revision | E1 |
Description
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.
Features
3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads With a Pulse-Skipping Eco-mode™ Control Scheme116-µA Operating Quiescent Current1.3-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start/SequencingUV and OV Power-Good OutputAdjustable UVLO Voltage and Hysteresis0.8-V ±3.5% Internal Voltage ReferenceMSOP10 With PowerPAD PackageSupported by WEBENCHAPPLICATIONS12-V and 24-V Industrial and CommercialLow-Power SystemsE-Meters
Typical applications
- Servo Drives
- Industrial Drives
- Factory Automation and Control
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | ISAT(A) | RDC max.(mΩ) | Version | Pins | Center pin Ø (Value)(mm) | Plug OD(mm) | Working Voltage(V (DC)) | Gender | Variant | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(mA) | Z @ 1 GHz(Ω) | H(mm) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]430 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length1.6 mm | Width0.8 mm | – | PackagingTape and Reel | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.7 mm | – | |||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | – | – | – | – | – | – | – | Size0603 | Operating Temperature -55 °C up to +125 °C | – | – | – | – | Length1.6 mm | Width0.8 mm | Pad Dimension0.3 mm | – | – | – | – | DC Resistance8.5 mΩ | – | – | MountSMT | – | DC Resistance15 mΩ | VersionSMT | – | – | – | – | – | – | Impedance @ 100 MHz60 Ω | Maximum Impedance99 Ω | Maximum Impedance458 MHz | Rated Current5100 mA | Impedance @ 1 GHz74 Ω | Height0.8 mm | TypeHigh Current | ||||
 | WE-TPC SMT Tiny Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | – | – | – | Size1028 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length10 mm | Width10 mm | – | – | Inductance100 µH | – | – | DC Resistance365 mΩ | Self Resonant Frequency7 MHz | – | MountSMT | Saturation Current0.9 A | DC Resistance470 mΩ | VersionSMT | Pins2 | – | – | – | – | – | – | – | – | Rated Current1000 mA | – | Height2.8 mm | – | ||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | Size1050 | Operating Temperature -40 °C up to +150 °C | – | – | – | – | Length10 mm | Width10 mm | – | – | Inductance33 µH | – | – | DC Resistance66 mΩ | Self Resonant Frequency11.1 MHz | Operating Voltage120 V | MountSMT | Saturation Current2.9 A | DC Resistance79 mΩ | VersionPerformance | Pins2 | – | – | – | – | – | – | – | – | Rated Current2500 mA | – | Height5 mm | – | ||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | Size3012 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length3 mm | Width3 mm | – | – | Inductance6.8 µH | Performance Rated Current1.4 A | Saturation Current @ 30%3.5 A | DC Resistance368.2 mΩ | Self Resonant Frequency25 MHz | Operating Voltage80 V | MountSMT | Saturation Current2.7 A | DC Resistance423.4 mΩ | VersionSMT | Pins2 | – | – | – | – | – | – | – | – | Rated Current880 mA | – | Height1.2 mm | – | ||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | Capacitance47 pF | Capacitance±5% | Rated Voltage25 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.5 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance100 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.5 mm | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance2.2 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.5 mm | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance4.7 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.5 mm | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.5 mm | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 10 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | Capacitance10 µF | Capacitance±10% | Rated Voltage10 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height1.25 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance1 µF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Height1.25 mm | – | |||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | – | Insulation Resistance100 MΩ | – | – | – | – | PackagingBag | – | – | – | – | – | – | MountTHT | – | – | – | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | Working Voltage30 V (DC) | – | – | – | – | – | Rated Current5000 mA | – | – | TypeRight Angled | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | PackagingBag | – | – | – | – | – | – | MountTHT | – | – | – | Pins2 | – | – | Working Voltage250 V (DC) | GenderPin Header | – | – | – | – | Rated Current3000 mA | – | – | TypeStraight | |||
 | WR-PHD Pin Header - Dual, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length7.62 mm | – | – | PackagingBag | – | – | – | – | – | – | MountTHT | – | – | – | Pins6 | – | – | Working Voltage250 V (DC) | GenderPin Header | – | – | – | – | Rated Current3000 mA | – | – | TypeStraight | |||
 | WR-DSUB PCB, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DSUB PCB | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +105 °C | – | – | Insulation Resistance5000 MΩ | – | Length30.8 mm | – | – | PackagingTray | – | – | – | – | – | – | – | – | – | VersionStandard | Pins9 | – | – | Working Voltage125 V (DC) | GenderFemale | Variantwith Hex Screw | – | – | – | Rated Current3000 mA | – | – | TypeAngled |