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SC189YSKTRT The SC189YSKTRT is a step-down buck regulator from Semtech with a fixed 2.9V output and 1.5A current capability. It operates at 2.5MHz and comes in a SOT-23-5 surface-mount package.
Mfr Part #:

SC189YSKTRT

Available from 1 distributors
Mfr Name: Semtech
Semtech
The SC189YSKTRT is a step-down buck regulator from Semtech with a fixed 2.9V output and 1.5A current capability. It operates at 2.5MHz and comes in a SOT-23-5 surface-mount package.
✓ Total Stock: 2,112 pcs
$ Price Range: $1.08

SC189YSKTRT Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
2,112 pcs
On Request
2112 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.

SC189YSKTRT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Package / Case
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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SC189YSKTRT Description

Short technical summary and product information.

The SC189YSKTRT is a step-down (buck) switching regulator from Semtech designed for applications requiring a fixed 2.9V output at up to 1.5A. It operates at a high switching frequency of 2.5MHz, enabling the use of small external components. The regulator features synchronous rectification for improved efficiency.

 

This device is a single-output, positive voltage regulator with a fixed output type. It is designed for surface-mount assembly and is supplied in a SOT-23-5 package (also referenced as SC-74A, SOT-753). The operating junction temperature range is -40°C to 125°C, making it suitable for industrial and automotive environments.

 

Typical applications include point-of-load regulation, portable electronics, and distributed power systems where space and efficiency are critical. The high switching frequency allows for compact power supply designs with minimal external inductor and capacitor values.

SC189YSKTRT Quick Information

Product Type: DC DC Switching Regulator
Series: SC189
Canonical Name: Semtech SC189YSKTRT Step-Down DC-DC Switching Regulator
Subcategory: DC-DC Switching Regulator

SC189YSKTRT Compliance

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

SC189YSKTRT Estimated Pricing

Qty Low High
1+ $1.08 $1.08

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

SC189YSKTRT Features

  • Fixed 2.9V output voltage.
  • 1.5A continuous output current.
  • 2.5MHz high switching frequency.
  • Synchronous rectifier for efficiency.
  • SOT-23-5 surface-mount package.

SC189YSKTRT Applications

  • Point-of-load regulation in portable devices.
  • Distributed power supply architectures.
  • Industrial and automotive power systems.
  • Space-constrained consumer electronics.

SC189YSKTRT FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the SC189YSKTRT?

The output voltage is fixed at 2.9V.

What is the maximum output current?

The maximum output current is 1.5A.

What is the switching frequency?

The switching frequency is 2.5MHz.

What package does the SC189YSKTRT come in?

It is available in a SOT-23-5 surface-mount package (also specified as SC-74A, SOT-753).

What is the operating temperature range?

The operating junction temperature range is -40°C to 125°C.

Does the regulator use synchronous rectification?

Yes, it features a synchronous rectifier.

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