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.
|DB1132: 1.5 A / 3.3 V step-down DC-DC converter demonstration board based on the ST1S03||1.1||89 KB|
|Evaluation board presentation||1.1||431 KB|
|PCB layout||1.0||31 KB|
|Bill of materials||1.0||45 KB|
|Board schematic||1.0||39 KB|
|Evaluation products license agreement||1.4||128 KB|
|Part Number||Core Product||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STEVAL-ISA042V2||ST1S03PUR||Active : Product is in volume production||30.63||1||NEC||EAR99||ITALY||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) 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.