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直流降压转换演示板STEVAL-ISA042V2

制  造  商:ST意法半导体

商品编号:STEVAL-ISA042V2

价       格:

¥566.08(含16%增值税)

数       量:

说       明:

由武汉力源信息技术股份有限公司 发货

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.

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

Pictures

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