STEVAL-ISA043V2 1.5 A / 3.3 V high frequency synchronous buck converter demonstration board based on the ST1S06

This demonstration board, based on the ST1S06, is an adjustable current-mode PWM synchronous, step-down DC-DC converter with inhibit function. It is optimized for powering all low-voltage applications and, more generally, to replace the high-current linear solution when the power dissipation may cause overheating of the application environment.

It provides up to 1.5 A over an input voltage range of 2.5 V to 5.5 V.

A high switching frequency (1.5 MHz) enables the use of tiny surface-mounted components (SMD). In addition to the resistor divider used to set the output voltage value, only an inductor and two capacitors are required.

Moreover, low output ripple is guaranteed by the current-mode PWM topology and by the use of low series resistance (ESR) SMD ceramic capacitors.

The device is thermal protected and current limited to prevent damage due to accidental short circuits.

It is a complete 1.5 A switching regulator with its internal compensation eliminating the need for additional components.

The constant-frequency, current-mode, PWM architecture and stable operation with ceramic capacitors results in a low, predictable output ripple. To clamp the error amplifier reference voltage, this device includes a soft-start control block generating a voltage ramp.

The ST1S06 is available in a 6L-DFN 3x3 package

技术特性
STEVAL-ISA043V2 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
STEVAL-ISA043V2 Active   1000        
DATA BRIEF
描述 版本 大小
STEVAL-ISA043V2 : 1.5 A /1.2 V high-frequency synchronous buck converter demonstration board based on the ST1S06 1 79KB
APPLICATION NOTES
描述 版本 大小
AN2371: ST1S06 high frequency synchronous buck converter 2 173KB
AN2936: 10 W SMPS with HV power MOSFET and the L6565 for three-phase industrial applications 1 303B
BILL OF MATERIALS
描述 版本 大小
Bill of materials 1.0 47KB
SCHEMATIC PACKS
描述 版本 大小
Board schematic 1.0 39KB
PCB LAYOUTS
描述 版本 大小
PCB layout 1.0 32KB