STMicroelectronics Demonstration Board Power Management for ST1S03 for Powering the Low-Voltage Digital Core in HDD

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RS Stock No.:
196-1830
Mfr. Part No.:
STEVAL-ISA042V2
Manufacturer:
STMicroelectronics
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Brand

STMicroelectronics

Product Type

Power Management Development Kit

Power Management Function

Power Management

For Use With

Powering the Low-Voltage Digital Core in HDD Applications

Kit Classification

Evaluation Board

Featured Device

ST1S03

Kit Name

Demonstration Board

Standards/Approvals

RoHS

COO (Country of Origin):
IT
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.

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