TPS5430DDAR

500kHz Step-down type Adjustable 1.221V~32.04V 3A SOIC-8-EP Voltage Regulators - DC DC Switching Regulators RoHS

PopularSOIC-8-EPROHS3 CompliantActive

3-A, Wide Input Range, Step-Down Converter

Manufacturer: TI
Manufacturer part #: TPS5430DDAR
Store part #: C9864
Package / case: SOIC-8-EP
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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1,86,401 in stock

#C9864

Stock & price checked 27 h ago

Quantity	Unit price	Pack price
1+	₹87.01	₹87.01
10+	₹72.22	₹722.20
30+	₹61.78	₹1,853.40
100+	₹53.08	₹5,308.00
500+	₹50.47	₹25,235.00
1,000+	₹48.73	₹48,730.00

Quantity (min 1)

1 × ₹87.01

₹87.01

excl. GST

₹102.67 incl. 18% GST

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Standard pack: 2,500 per reel

TPS5430DDAR

₹87.01 for 1 + GST

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Specifications

Operating Temperature: -40℃~+125℃@(TJ)
Frequency - Switching: 500kHz
Function: Step-down type
Number of Outputs: 1
Features: Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection
Output Type: Adjustable
Topology: Buck
Operating Voltage: 5.5V~36V
Switch tube (built-in/external): Built-in
Output Voltage: 1.221V~32.04V
Output Current: 3A
Quiescent Current: 4.4mA

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
Moisture sensitivity: MSL 1 (unlimited)
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 2,500 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.134 g

Overview

The TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltagelockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, over-voltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23 V. The TPS5430 regulates a wide variety of power sources including 24 V bus. The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

Applications

Consumer: Set-top Box, DVD, LCD Displays
Industrial and Car Audio Power Supplies
Battery Chargers, High Power LED Supply
12-V/24-V Distributed Power Systems

Key features

Wide Input Voltage Range:
TPS5430: 5.5 V to 36 V
TPS5431: 5.5 V to 23 V
Up to 3-A Continuous (4-A Peak) Output Current
High Efficiency up to 95% Enabled by 110 mΩ Integrated MOSFET Switch
Wide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial Accuracy
Internal Compensation Minimizes External Parts Count
Fixed 500 kHz Switching Frequency for Small Filter Size
Improved Line Regulation and Transient Response by Input Voltage Feed Forward
System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
-40°C to 125°C Operating Junction Temperature Range
Available in Small Thermally Enhanced 8-Pin SO PowerPAD Package

Alternatives

Similar parts — check the datasheet before substituting.

	Manufacturer	Package	Stock	Price from (excl. GST)	Action
TPS5430DDA#C502477TI · ESOP-8	TI	ESOP-8	2,221	₹119.15 · 2,221 in stock	View
TPS5430QDDARQ1#C388178TI · SOP-8-EP	TI	SOP-8-EP	2,157	₹313.95 · 2,157 in stock	View
TPS5450QDDARQ1#C181270TI · SOIC-8-EP	TI	SOIC-8-EP	1,208	₹487.18 · 1,208 in stock	View
TPS5450DDAR#C114425TI · SOP-8-EP-150mil	TI	SOP-8-EP-150mil	10,741	₹270.16 · 10,741 in stock	View
RT8279GSP#C53194RICHTEK · SOP-8-EP-150mil	RICHTEK	SOP-8-EP-150mil	15,060	₹91.14 · 15,060 in stock	View

Questions about TPS5430DDAR

Is the TPS5430DDAR Compatible With 24-V Industrial Power Systems?

Yes, it is fully compatible. The TPS5430DDAR supports a wide input voltage range from 5.5 V to 36 V, making it well-suited for standard 12-V and 24-V distributed power buses while providing a regulated step-down output current up to 3 A.

What Are Suitable Direct or Alternative Replacements Through LCSC?

Higher-current options from the same family, such as the TPS5450DDAR (5-A rating), serve as direct upgrades. For cost-effective pin-compatible alternatives, consider Richtek options like the RT8289GSP or RT8279GSP, depending on your system requirements.

What Are the Primary Application Scenarios for This Step-Down Converter?

The TPS5430DDAR is ideal for consumer electronics like set-top boxes, LCD displays, and DVD players, as well as industrial equipment, automotive audio systems, battery chargers, high-power LED drivers, and general 12-V or 24-V distributed DC power rails.

What Are the Key Technical Specifications of the TPS5430DDAR?

Key specifications include an input range of 5.5 V to 36 V, adjustable output voltage from 1.221 V to 32.04 V, 3-A continuous output current, 500-kHz fixed switching frequency, internal compensation, integrated 110-m惟 MOSFET, and an 8-pin SOIC PowerPAD package.

How Should Thermal Management Be Implemented During PCB Layout?

Since the TPS5430DDAR comes in an SOIC-8-EP PowerPAD package, you must solder the exposed bottom thermal pad directly to a copper ground plane on the PCB with multiple thermal vias to effectively dissipate heat under heavy 3-A continuous load conditions.

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