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TPS5403DR The Texas Instruments TPS5403DR is a non-synchronous step-down DC-DC switching regulator. It features a fixed 3.3V output and can supply up to 1.7A of current.
Mfr Part #:

TPS5403DR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS5403DR is a non-synchronous step-down DC-DC switching regulator. It features a fixed 3.3V output and can supply up to 1.7A of current.
✓ Total Stock: 14,101 pcs
$ Price Range: $0.70

TPS5403DR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
11,000 pcs
On Request
11000 pcs On Request 1 On Request On Request 15+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,101 pcs
On Request
3101 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TPS5403DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Halogen Free
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
SVHC Present
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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TPS5403DR Description

Short technical summary and product information.

The Texas Instruments TPS5403DR is a monolithic non-synchronous buck regulator designed for efficient power conversion. It operates with a wide input voltage range from 4.5V to 28V and provides a fixed 3.3V output voltage.

 

This regulator is capable of delivering a continuous output current of up to 1.7A. It utilizes current-mode control for stable operation and includes features like pulse skipping mode for high efficiency at light loads. The switching frequency can be adjusted externally between 50kHz and 1.1MHz, with options for frequency spread spectrum to reduce EMI.

 

The TPS5403DR is housed in an 8-pin SOIC package, suitable for surface mount applications. Its design incorporates over-current protection and thermal shutdown for device safety. This component is well-suited for various consumer and industrial power supply applications.

 

Key electrical characteristics include a wide input voltage range (4.5V to 28V), a fixed 3.3V output, and a maximum continuous output current of 1.7A. The adjustable switching frequency ranges from 50kHz to 1.1MHz. The operating temperature range is -40°C to 85°C.

TPS5403DR Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: TPS5403DR Non-Synchronous Step-Down Regulator
Subcategory: Buck Converter

TPS5403DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

TPS5403DR Estimated Pricing

Qty Low High
1+ $0.70 $0.70

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPS5403DR Features

  • Wide 4.5V to 28V input voltage range.
  • Fixed 3.3V output voltage.
  • Maximum 1.7A continuous output current.
  • Adjustable switching frequency from 50kHz to 1.1MHz.
  • Surface mountable 8-SOIC package.

TPS5403DR Applications

  • Consumer electronics power supplies.
  • Industrial power systems.
  • Set-top box power.
  • LCD display power.

TPS5403DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS5403DR?

4.5V to 28V.

What is the output voltage of the TPS5403DR?

Fixed 3.3V.

What is the maximum output current?

1.7A.

What is the switching frequency range?

50kHz to 1.1MHz.

What is the operating temperature range?

-40°C to 85°C.

What package does the TPS5403DR come in?

8-SOIC surface mount package.

What topology does the TPS5403DR use?

Buck (step-down) topology.

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