STEVAL-ISA042V2

Active
Design Win

1.5 A / 3.3 V step-down DC-DC converter demonstration board based on the ST1S03

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Product overview

Description

The STEVAL-ISA042V2 demonstration board is a step-down DC-DC converter optimized for powering the low-voltage digital core in HDD applications and, more generally, replacing the high-current linear solution when the power dissipation may cause excessive heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 16 V.

A high switching frequency (1.5 MHz) allows the use of tiny surface-mounted components, as well as the use of a resistor divider to set the output voltage value. Only an inductor, a Schottky diode, and two capacitors are required. In addition, a low output ripple is guaranteed by the current-mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermal protected and current limited to prevent damage due to accidental short-circuits.

It uses the ST1S03 device.

The ST1S03 is available in a DFN6 (3x3mm) package.

  • All features

    • Adjustable current-mode PWM step-down DC-DC converter
    • Output voltage, Vout : 3.3 V
    • Output current, Iout: 1.5 A
    • Internal compensation to eliminate additional components
    • Pulse skipping for Ioutlower than 15 mA, to maintain the regulation with light loads
    • RoHS compliant

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA042V2
Active
CARD Industrial Ecopack2 -

STEVAL-ISA042V2

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Core Product
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ECCN (US)
ECCN (EU)
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Budgetary Price (US$)*/Qty
STEVAL-ISA042V2 Available at distributors

Distributor availability of STEVAL-ISA042V2

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
ST1S03PUR
Active
- EAR99 NEC ITALY -

STEVAL-ISA042V2 Active

ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEVAL-ISA042V2

Core Product:

ST1S03PUR

Supplier:

-

ECCN (EU):

NEC

Country of Origin:

ITALY

Board production status:

-

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors