STEVAL-ISA077V2 [STMICROELECTRONICS]
High efficiency synchronous rectifier step-up converter demonstration board based on the L6920D; 高效率同步整流升压基础上， L6920D转换器演示板
| 型号： | STEVAL-ISA077V2 |
| 厂家： | 
ST |
| 描述： | High efficiency synchronous rectifier step-up converter demonstration board based on the L6920D |
| 文件： | 总4页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STEVAL-ISA077V2
High efficiency synchronous rectifier step-up converter
demonstration board based on the L6920D
Data brief
Features
■ 0.6 V to 5.5 V operating input voltage
■ 1 V startup input voltage
■ Internal synchronous rectifier
■ Zero shutdown current
■ 3.3 V and 5 V fixed or adjustable
■ Output voltage (2 V up to 5.2 V)
■ 120 mΩ internal active switch
■ Low battery voltage detection
■ Reverse battery protection
■ RoHS compliant
STEVAL-ISA077V2
Description
The STEVAL-ISA077V2 demonstration board is
based on the L6920D high efficiency step-up
converter as well as the external components
required for a typical application.
Startup is guaranteed at 1 V and the device
operates down to 0.6 V. The output voltage can be
adjusted from 2 V to 5.2 V and two fixed output
voltages (3.3 V and 5 V) are also available.
November 2010
Doc ID 18238 Rev 1
1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Circuit schematic
STEVAL-ISA077V2
1
Circuit schematic
Figure 1.
Circuit schematic
Panasonic
ELL6RH100M
+VBATT
+VBATT
VBATT
L1 10µH
Panasonic
EEFCDJ470R
R1
C2
47µF
7
N.C.
LBI
2
GND
VOUT
R2
N.C.
8
VOUT
C1
47µF
Panasonic
EEFCDJ470R
C3
N.C.
R3
N.C.
VREF
GND
L6920
4
6
GND
LBO
C4
100nF
LBO
3
1
2
SHDN
5
SHDN
1
J1
3
R4 N.C.
1
F.B.
2
J2
3
R5 N.C.
D01IN1310
not mounted components
2/4
Doc ID 18238 Rev 1
STEVAL-ISA077V2
Revision history
2
Revision history
Table 1.
Date
17-Nov-2010
Document revision history
Revision
Changes
1
Initial release.
Doc ID 18238 Rev 1
3/4
STEVAL-ISA077V2
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Doc ID 18238 Rev 1
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