DistyParts Icon
SC189CSKTRT Semtech SC189CSKTRT is a synchronous buck regulator providing 1.2V fixed output at 1.5A from a 2.9V to 5.5V input. It switches at 2.5MHz and is offered in a SOT-23-5 package.
Mfr Part #:

SC189CSKTRT

Available from 2 distributors
Mfr Name: Semtech
Semtech
Semtech SC189CSKTRT is a synchronous buck regulator providing 1.2V fixed output at 1.5A from a 2.9V to 5.5V input. It switches at 2.5MHz and is offered in a SOT-23-5 package.
✓ Total Stock: 6,531 pcs
$ Price Range: $1.08

SC189CSKTRT Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Xingangxin ✓
Non-Authorised Inventory information
1,531 pcs
On Request
1531 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.

SC189CSKTRT 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
Supplier Device Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
View Similar Products (0)

SC189CSKTRT Description

Short technical summary and product information.

The SC189CSKTRT from Semtech is a step-down (buck) switching regulator designed for applications requiring a fixed 1.2V output voltage. It is a synchronous rectifier, providing high efficiency, and delivers up to 1.5A of output current.

 

The device operates from an input voltage range of 2.9V to 5.5V and switches at a fixed 2.5MHz frequency, allowing the use of small external components. The output voltage is fixed at 1.2V with a positive output configuration.

 

The SC189CSKTRT is mounted using surface mount technology and is available in a SOT-23-5 package (also known as SC-74A, SOT-753). It is specified for junction temperatures from -40°C to 125°C, making it suitable for a wide range of environments.

SC189CSKTRT Quick Information

Product Type: DC-DC Switching Regulator
Canonical Name: SC189CSKTRT - Semtech 1.2V Fixed Output 1.5A Buck Switching Regulator
Subcategory: Step-Down Regulator

SC189CSKTRT Compliance

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

SC189CSKTRT Estimated Pricing

Qty Low High
1+ $1.08 $1.08

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

SC189CSKTRT Features

  • Fixed 1.2V output voltage synchronous buck.
  • 1.5A output current capability.
  • 2.5MHz switching frequency for compact design.
  • Surface mount SOT-23-5 package.
  • Junction temperature range -40°C to 125°C.

SC189CSKTRT Applications

  • Powering low-voltage digital ICs from 3.3V or 5V rails.
  • Point-of-load regulation in portable devices.
  • Battery-powered equipment requiring high efficiency.
  • Distributed power systems in industrial applications.
  • Telecom and networking equipment power supplies.

SC189CSKTRT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the SC189CSKTRT?

2.9V to 5.5V.

What is the output voltage of the SC189CSKTRT?

Fixed 1.2V.

What is the maximum output current?

1.5A.

What is the switching frequency?

2.5MHz.

What package is the SC189CSKTRT available in?

SOT-23-5 (SC-74A, SOT-753).

What is the operating temperature range?

-40°C to 125°C (junction).

Is the SC189CSKTRT a synchronous regulator?

Yes, it has synchronous rectifier.

Home

Categories