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TPS51275B-1RUKR The Texas Instruments TPS51275B-1RUKR is a dual synchronous buck controller with integrated 5V and 3.3V LDOs. It features a wide input voltage range and a 20-pin WQFN package.
Mfr Part #:

TPS51275B-1RUKR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS51275B-1RUKR is a dual synchronous buck controller with integrated 5V and 3.3V LDOs. It features a wide input voltage range and a 20-pin WQFN package.
✓ Total Stock: 39,190 pcs
$ Price Range: $0.22

TPS51275B-1RUKR Available from 3 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
37,400 pcs
On Request
37400 pcs On Request 1 On Request On Request 1751+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,696 pcs
On Request
1696 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
94 pcs
On Request
94 pcs On Request 1 On Request On Request 22+ 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.

TPS51275B-1RUKR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle (Max)
Features
Frequency
Mounting Type
Number of Outputs
Operating Temperature
Output Current
Output Voltage
Supplier Device Package
Supplier Package
Tape & Reel
Topology
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TPS51275B-1RUKR Description

Short technical summary and product information.

The Texas Instruments TPS51275B-1RUKR is a versatile dual synchronous buck controller designed for efficient power management. It supports an input voltage range from 5.5V to 24V and can deliver up to 20A of output current. This controller integrates two 100mA LDOs, providing 5V and 3.3V outputs, making it suitable for systems requiring multiple voltage rails.

 

The TPS51275B-1RUKR utilizes an adaptive On-Time D-CAP™ mode control architecture, operating at selectable frequencies of 300kHz and 355kHz. It includes features such as Out-of-Audio™ (OOA) light-load operation, internal soft-start, power good indication, and synchronous rectification for improved efficiency. The device also incorporates protection features like OVP, UVP, and OCP.

 

Packaged in a compact 20-pin, 3mm x 3mm WQFN, the TPS51275B-1RUKR is designed for surface mount applications. Its operating temperature range is -40°C to 85°C, ensuring reliable performance in various environmental conditions. The controller's features make it suitable for a range of power supply designs requiring high efficiency and multiple voltage outputs.

TPS51275B-1RUKR Quick Information

Product Type: Dual Synchronous Buck Controller
Canonical Name: Texas Instruments TPS51275B-1RUKR Dual Synchronous Buck Controller with Out-of-Audio™ Mode
Subcategory: Buck Controller

TPS51275B-1RUKR Compliance

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

TPS51275B-1RUKR Estimated Pricing

Qty Low High
1+ $0.22 $0.22

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

TPS51275B-1RUKR Features

  • Dual synchronous buck controller with LDOs
  • Wide 5.5V to 24V input voltage range
  • Up to 20A output current capability
  • Integrated 5V and 3.3V 100mA LDOs
  • Adaptive On-Time D-CAP™ control mode

TPS51275B-1RUKR Applications

  • Powering multiple voltage rails
  • Efficient step-down power conversion
  • Systems requiring low quiescent current
  • Compact power supply designs
  • Consumer electronics power management

TPS51275B-1RUKR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS51275B-1RUKR?

The input voltage range is 5.5 V to 24 V.

What output voltages does the TPS51275B-1RUKR provide?

It provides 3.3 V and 5 V outputs from both the buck converters and the LDOs.

What is the maximum output current of the TPS51275B-1RUKR?

The maximum output current is 20 A.

What is the operating temperature range of the TPS51275B-1RUKR?

The operating temperature range is -40°C to 85°C.

What package is the TPS51275B-1RUKR available in?

It is available in a 20-WQFN (3x3 mm) package with an exposed pad.

What control mode does the TPS51275B-1RUKR use?

It uses D-CAP control mode.

Does the TPS51275B-1RUKR include LDO regulators?

Yes, it includes two built-in 100-mA LDOs providing 3.3 V and 5 V outputs.

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