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TPS51427RHBR The Texas Instruments TPS51427RHBR is a dual synchronous step-down controller designed for notebook power rails. It features D-CAP mode for fast transient response and a wide input voltage range.
Mfr Part #:

TPS51427RHBR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS51427RHBR is a dual synchronous step-down controller designed for notebook power rails. It features D-CAP mode for fast transient response and a wide input voltage range.
✓ Total Stock: 52,741 pcs
$ Price Range: $2.39

TPS51427RHBR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
47,579 pcs
On Request
47579 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
5,049 pcs
On Request
5049 pcs On Request 1 On Request On Request 1106+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
113 pcs
On Request
113 pcs On Request 1 On Request On Request 10+ 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.

TPS51427RHBR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Duty Cycle (Max)
Input Voltage
Mounting Type
Number of Outputs
Operating Temperature
Supplier Device Package
Supplier Package
Voltage
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TPS51427RHBR Description

Short technical summary and product information.

The TPS51427RHBR from Texas Instruments is a dual synchronous step-down controller specifically designed for notebook and mobile communication applications. It is part of a suite of low-cost notebook power bus regulators.

 

This controller integrates two pulse-width-modulation (PWM) controllers, SMPS1 and SMPS2. SMPS1 output can be adjusted from 0.7V to 5.9V, while SMPS2 output ranges from 0.5V to 2.5V. Additionally, it includes a low-dropout (LDO) regulator with a fixed 3.3V/5V output or an adjustable output from 0.7V to 4.5V, capable of sourcing 100 mA.

 

The device operates with a wide input voltage range of 5.5V to 28V. It utilizes fixed-frequency emulated on-time control with selectable frequencies and D-CAP mode, enabling fast transient response in less than 100 ns. Advanced ramp compensation minimizes output ripple with minimal jitter. It also supports selectable PWM-Only/OOA/Auto-Skip modes for efficiency.

 

The TPS51427RHBR is available in a 32-pin VQFN package (5x5 mm) and operates over a temperature range of -40°C to 85°C. Its applications include notebook I/O and system bus rails, graphics applications, and PDAs.

TPS51427RHBR Quick Information

Product Type: Dual Synchronous Step-Down Controller
Canonical Name: TPS51427RHBR Dual D-CAP Synchronous Step-Down Controller
Subcategory: Synchronous Buck Controller

TPS51427RHBR Compliance

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

TPS51427RHBR Estimated Pricing

Qty Low High
1+ $2.39 $2.39

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

TPS51427RHBR Features

  • Dual synchronous step-down controller
  • D-CAP mode for fast transient response
  • Wide input voltage range: 5.5V to 28V
  • Adjustable outputs for dual channels
  • Integrated LDO regulator

TPS51427RHBR Applications

  • Notebook power system rails
  • Mobile communication devices
  • Graphics applications
  • System bus power

TPS51427RHBR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS51427RHBR?

The input voltage range is 5.5 V to 28 V.

What are the output voltage ranges for the two channels?

Channel 1 output is adjustable from 0.7 V to 5.9 V. Channel 2 output is adjustable from 0.5 V to 2.5 V.

What is the operating temperature range?

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

What package is the TPS51427RHBR available in?

It is available in a 32-VQFN Exposed Pad (5x5 mm) package for surface mount mounting.

What control mode does the TPS51427RHBR use?

It uses D-CAP control mode.

What is the maximum duty cycle?

The maximum duty cycle is 90%.

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