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ST1S03PMR The Toshiba ST1S03PMR is a step-down DC-DC switching regulator. 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: Toshiba
Toshiba
The Toshiba ST1S03PMR is a step-down DC-DC switching regulator. It offers a 1.5A output current capability and operates at a 1.5MHz switching frequency.
✓ Total Stock: 226,000 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
Romaks Technologies ✓
Non-Authorised Inventory information
226,000 pcs
On Request
226000 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.

ST1S03PMR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Efficiency
Input Voltage
Mounting Type
Output Current
Quiescent Current
Tape & Reel
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ST1S03PMR Description

Short technical summary and product information.

The ST1S03PMR from Toshiba is a step-down DC-DC converter designed for powering low-voltage digital cores. It is optimized to replace high-current linear solutions, reducing power dissipation and heat in applications.

 

This regulator provides up to 1.5A of output current over an input voltage range of 3V to 16V. Its high switching frequency of 1.5MHz allows for the use of small surface-mount components, including tiny capacitors and inductors. The current mode PWM topology ensures a low output ripple.

 

The device features internal soft start for controlled startup current and a power-on delay of 50-100µs. It also includes thermal protection and current limiting to prevent damage from short circuits. The ST1S03PMR is available in a DFN6 package.

 

Key electrical characteristics include a 2% DC output voltage tolerance and a typical efficiency greater than 70%. The quiescent current is a maximum of 2.5mA when not switching.

ST1S03PMR Quick Information

Product Type: Step-Down Switching Regulator
Canonical Name: ST1S03 Step-Down Switching Regulator
Subcategory: Power Management IC

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

  • 1.5A output current capability.
  • 1.5MHz adjustable step-down PWM.
  • 3V to 16V input voltage range.
  • 2% DC output voltage tolerance.
  • Internal soft start and thermal protection.

ST1S03PMR Applications

  • Powers low-voltage digital cores.
  • Replaces high current linear solutions.
  • Suitable for HDD applications.
  • Reduces power dissipation in systems.

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 maximum output current?

1.5A.

What is the switching frequency?

1.5 MHz adjustable.

What is the package type?

DFN6 (3x3 mm) surface mount.

What is the typical efficiency?

Greater than 70% over all operating conditions.

What is the quiescent current when not switching?

Maximum 2.5 mA.

Does the regulator have internal soft start?

Yes, with a 50-100 µs delay to limit startup current.

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