STEVAL-ISA024V1 [STMICROELECTRONICS]
20 A step-down DC-DC converter demonstration board with 3.3 Vout and 250 kHz switching frequency, based on the L6725; 20的降压型DC-DC转换器的演示板与3.3 Vout与250千赫兹开关频率的基础上， L6725
| 型号： | STEVAL-ISA024V1 |
| 厂家： | 
ST |
| 描述： | 20 A step-down DC-DC converter demonstration board with 3.3 Vout and 250 kHz switching frequency, based on the L6725 |
| 文件： | 总4页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STEVAL-ISA024V1
20 A step-down DC-DC converter demonstration board with
3.3 Vout and 250 kHz switching frequency, based on the L6725
Data Brief
Features
■ Input voltage, V : from 4.5 V to 14 V
IN
■ Output voltage: 3.3 V
■ Selectable switching frequency: 250 kHz / 500
kHz
■ Over-voltage protection
■ Thermal shutdown
Description
STEVAL-ISA024V1
This 4-layer PCB demonstration board is
designed as a step-down DC-DC converter to
demonstrate the operation of the L6725 device in
a general-purpose application. The input voltage
can range from 4.5 V to 14 V with an output
voltage of 3.3 V. The module can deliver an output
current in excess of 20 A. The L6725 device can
manage minimum ON times (T ) shorter than
ON
100 ns. This makes possible conversions with
very low duty cycles and very high switching
frequencies. The switching frequency is initially
set at 250 kHz (controller free-running FSW), but
a switching frequency of 500 kHz can also be
selected.
September 2008
Rev 1
1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Board schematic
STEVAL-ISA024V1
1
Board schematic
Figure 1.
Schematic
2/4
STEVAL-ISA024V1
Revision history
2
Revision history
Table 1.
Date
02-Sep-2008
Document revision history
Revision
Changes
1
Initial release.
3/4
STEVAL-ISA024V1
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