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| 型号： | AS1343A-BTDT-10 |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | DC/DC变换器 |
| 英文描述： | 42V, 1MHz, Single Cell, Boost; Package Type: TDFN(3x3)-10; Temperature Range: -40 - +85 °C; Dimension: 3 x 3 mm; Shutdown: Yes; Output Current: 140mA; Output Range: 5.5 to 42V; Supply Voltage: 0,90-3,60 |
| 封装： | TDFN(3x3)-10 |
| 文件页数： | 14/17页 |
| 文件大小： | 1074K |
| 代理商： | AS1343A-BTDT-10 |
www.austriamicrosystems.com
Revision 1.04
14 - 17
AS1343
Datasheet - Application Information
Diode Selection
A Schottky diode must be used to carry the output current into the Cout and load during the NMOS switch-off time.
Note:
Do not use ordinary rectifier diodes, since the slow recovery times will compromise efficiency.
The MBR0520 is a good choice because of the very low forward voltage and the extremly fast switching. If the output
voltage exceeds 20V the use of the PMEG4005 or the MBR0540 (40V Schottky diodes) is recommended. These
diodes are designed to handle an average forward current of 500mA. In applications with higher loads, the PMEG4010
or the MBRM140 should be used, due to the rated average forward current of 1A.
Table 7. Recommended Diodes
Part Number
MBR0540
MBR0520
PMEG4005
PMEG4010
Reverse Voltage
40V
20V
40V
40V
Forward Current
0.5A
0.5A
0.5A
1A
Package
SOD123
SOD123
SOD123
SOD123
Manufacturer
MCC
Philipswww.nxp.com
MBRM140
40V
1A
SOD123
ON Semiconductor
www.onsemi.com
Figure 32. Efficiency Comparison of different Diodes;
V
IN
= 3V, V
OUT
= 18V, L
1
= 6.8μH
90
Figure 33. Efficiency Comparison of different Diodes;
V
IN
= 3.6V, V
OUT
= 18V, L
1
= 6.8μH
90
0
10
20
30
40
50
60
70
80
0.1
1
10
100
Output Current (mA)
E
PMEG4010
MBR0540
MBR0520
PMEG4005
0
10
20
30
40
50
60
70
80
0.1
1
10
100
Output Current (mA)
E
PMEG4010
MBR0540
MBR0520
PMEG4005
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相关代理商/技术参数 |
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|---|---|
| AS1343A-BTDT-10-1K | 功能描述:IC REG BOOST ADJ 1.4A 10TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:50 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:5 V ~ 25 V 输入电压:2.3 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:600kHz，1.2MHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 包装:管件 供应商设备封装:8-MSOP |
| AS1343A-BTDT-10-6K | 制造商:ams 功能描述:T&R / TDFN 8 |
| AS1343A-TD-10_EK_ST | 功能描述:AS1343 - DC/DC, Step Up 1, Non-Isolated Outputs Evaluation Board 制造商:ams 系列:- 零件状态:有效 主要用途:DC/DC，步升 输出和类型:1，非隔离 功率 - 输出:- 电压 - 输出:12V 或 18V 电流 - 输出:40mA 电压 - 输入:0.9 V ~ 3.6 V 稳压器拓扑:升压 频率 - 开关:1MHz 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1343 标准包装:1 |
| AS1343-EB | 制造商:ams 功能描述:AS1343 Evaluation Board |
| AS1344 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:42V, DC-DC Boost Converter with adjustable Softstart |
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