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ST1S03PMR The ST1S03PMR is an adjustable step-down DC-DC switching regulator from STMicroelectronics. It offers a 1.5A output current capability and operates at a 1.5MHz switching frequency.
Mfr Part #:

ST1S03PMR

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ST1S03PMR is an adjustable step-down DC-DC switching regulator from STMicroelectronics. It offers a 1.5A output current capability and operates at a 1.5MHz switching frequency.
✓ Total Stock: 380 pcs
$ Price Range: $1.08

ST1S03PMR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
380 pcs
On Request
380 pcs On Request 1 On Request On Request 09+ 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.

ST1S03PMR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Input Voltage
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
Quiescent Current
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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ST1S03PMR Description

Short technical summary and product information.

The ST1S03PMR is a step-down DC-DC converter from STMicroelectronics, designed for powering low-voltage digital cores. It provides up to 1.5A output current over an input voltage range of 3V to 16V.

 

This regulator features a current mode PWM topology with a high switching frequency of 1.5MHz, enabling the use of small surface-mount components. It offers a 2% DC output voltage tolerance and an internal soft start for controlled startup.

 

The device is available in a 6-DFN exposed pad package, suitable for surface mounting. It operates within a temperature range of 0°C to 125°C (TJ). The regulator is also thermally protected and current limited to prevent damage from short circuits.

ST1S03PMR Quick Information

Product Type: DC-DC Switching Regulator
Canonical Name: ST1S03PMR Step-Down Switching Regulator
Subcategory: DC-DC Switching Regulator

ST1S03PMR Compliance

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

ST1S03PMR Estimated Pricing

Qty Low High
1+ $1.08 $1.08

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

ST1S03PMR Features

  • Step-down DC-DC converter with 1.5A capability.
  • Adjustable output voltage with 2% tolerance.
  • High switching frequency of 1.5MHz.
  • Internal soft start for controlled startup.
  • Available in a 6-DFN exposed pad package.

ST1S03PMR Applications

  • Point-of-load regulation for low voltage.
  • Battery-powered device power supply.
  • Distributed power system applications.
  • Consumer electronics voltage conversion.
  • Industrial control power management.

ST1S03PMR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the ST1S03PMR?

3V to 16V.

What is the package type of the ST1S03PMR?

6-DFN Exposed Pad (3x3mm).

What is the operating temperature range?

0°C to 125°C (junction temperature).

What is the output current capability?

1.5A.

What is the switching frequency?

1.5MHz.

What is the typical efficiency?

Greater than 70% over all operating conditions.

Does it have soft start?

Yes, internal soft start with 50-100µs delay.

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