LT1054 具有稳压器的带开关电容器电压转换器
|
LT1054 |
| Topology |
Flyback |
| Vin(Min)(V) |
4.2 |
| Vin(Max)(V) |
35 |
| Vout(Min)(V) |
-70 |
| Vout(Max)(V) |
-1 |
| Regulated Outputs(#) |
1 |
| Iout(Max)(A) |
0.5 |
| Switching Frequency(Max)(kHz) |
300 |
| Iq(Typ)(mA) |
9 |
| Pin/Package |
8PDIP, 8SOIC |
| Thermal Shutdown |
No |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
100 |
LT1054 描述
The LT1054 is a bipolar, switched-capacitor voltage converter with regulator. It provides higher output current and significantly lower voltage losses than previously available converters. An adaptive-switch drive scheme optimizes efficiency over a wide range of output currents. Total voltage drop at 100-mA output current typically is 1.1 V. This applies to the full supply-voltage range of 3.5 V to 15 V. Quiescent current typically is 2.5 mA.
The LT1054 also provides regulation, a feature not previously available in switched-capacitor voltage converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated against changes in both input voltage and output current. The LT1054 also can be shut down by grounding the feedback terminal.
LT1054 特性
- Output Current...100 mA
- Low Loss...1.1 V at 100 mA
- Operating Range...3.5 V to 15 V
- Reference and Error Amplifier for Regulation
- External Shutdown
- External Oscillator Synchronization
- Devices Can Be Paralleled
- Pin-to-Pin Compatible With the LTC1044/7660
LT1054 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| LT1054CDW |
ACTIVE |
0 to 70 |
1.75 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
LT1054C |
| LT1054CDWE4 |
ACTIVE |
0 to 70 |
1.75 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
LT1054C |
| LT1054CDWG4 |
ACTIVE |
0 to 70 |
1.75 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
LT1054C |
| LT1054CDWR |
ACTIVE |
0 to 70 |
1.60 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
LT1054C |
| LT1054CDWRE4 |
ACTIVE |
0 to 70 |
1.60 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
LT1054C |
| LT1054CDWRG4 |
ACTIVE |
0 to 70 |
1.60 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
LT1054C |
| LT1054CP |
ACTIVE |
0 to 70 |
1.90 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
LT1054CP |
| LT1054CPE4 |
ACTIVE |
0 to 70 |
1.90 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
LT1054CP |
| LT1054IDW |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
LT1054C |
| LT1054IDWG4 |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
LT1054C |
| LT1054IDWR |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
LT1054C |
| LT1054IDWRG4 |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
LT1054C |
| LT1054IP |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
LT1054IP |
| LT1054IPE4 |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
LT1054IP |
| LT1054Y |
OBSOLETE |
|
|
DIESALE (Y) | 0 |
|
|
LT1054 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| LT1054CDW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054CDW |
| LT1054CDWE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054CDWE4 |
| LT1054CDWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
LT1054CDWG4 |
LT1054CDWG4 |
| LT1054CDWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054CDWR |
| LT1054CDWRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054CDWRE4 |
| LT1054CDWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
LT1054CDWRG4 |
LT1054CDWRG4 |
| LT1054CP |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
LT1054CP |
| LT1054CPE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
LT1054CPE4 |
| LT1054IDW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054IDW |
| LT1054IDWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
LT1054IDWG4 |
LT1054IDWG4 |
| LT1054IDWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
LT1054IDWR |
| LT1054IDWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
LT1054IDWRG4 |
LT1054IDWRG4 |
| LT1054IP |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
LT1054IP |
| LT1054IPE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
LT1054IPE4 |
LT1054 应用技术支持与电子电路设计开发资源下载
- LT1054 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
LT1054 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| LT1054EVM 评估模块 |
LT1054EVM-092 |
Texas Instruments |
开发电路板/EVM |
LT1054 参考设计
| 说明 |
型号 |
公司 |
| Spartan™-3 电源管理解决方案（设计 1） |
PR213 |
Texas Instruments |
| Spartan™-II 电源管理解决方案（设计 3） |
PR211 |
Texas Instruments |
| Spartan™-IIE 电源管理解决方案（设计 3） |
PR212 |
Texas Instruments |
