STEVAL-ISA069V1 [STMICROELECTRONICS]
3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package; 基于在3×3 DFN封装的ST1S31 3 A / 1.5MHz的降压型同步开关稳压器
| 型号： | STEVAL-ISA069V1 |
| 厂家： | 
ST |
| 描述： | 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package |
| 文件： | 总4页 (文件大小：281K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STEVAL-ISA069V1
3 A / 1.5 MHz step-down synchronous switching regulator based on
the ST1S31 in DFN 3x3 package
Data brief
Features
■ 4 A peak output current
■ From 2.8 V to 5.5 V input voltage
■ Output voltage adjustable from 0.8 V
■ 1.5 MHz switching frequency
■ Internal soft-start and enable
■ Integrated 60 mΩand 45 mΩpower MOSFETs
■ All ceramic capacitors
■ Power Good (POR)
■ Cycle-by-cycle current limiting
■ Current foldback short-circuit protection
■ RoHS compliant
Description
The STEVAL-ISA069V1 demonstration board is
based on the ST1S31, which is an internally
compensated 1.5 MHz fixed-frequency PWM
synchronous step-down regulator. This device
operates from 2.8 V to 5.5 V input, while it
regulates an output voltage as low as 0.8 V and
up to Vin.
The peak current mode control with internal
compensation delivers a very compact solution
with a minimum component count.
April 2012
Doc ID 022882 Rev 1
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For further information contact your local STMicroelectronics sales office.
www.st.com
4
Schematic diagram
Document header RPN(s)
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Schematic diagram
Figure 1.
Schematic diagram
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Doc ID 022882 Rev 1
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Revision history
2
Revision history
Table 1.
Date
06-Apr-2012
Document revision history
Revision
Changes
1
Initial release.
Doc ID 022882 Rev 1
3/4
Document header RPN(s)
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