TPS62054 采用 MSOP-10 封装的 1.8V 800mA 输出 10V 输入的 95% 效率步降转换器
TPS62054 描述
The TPS6205x devices are a family of high-efficiency synchronous step-down dc/dc converters ideally suited for systems powered from a 1-cell or 2-cell Li-Ion battery or from a 3-cell to 5-cell NiCd, NiMH, or alkaline battery.
The TPS62054 is a synchronous PWM converter with integrated N-channel and P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 850 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600 kHz to 1
|
TPS62050 |
TPS62051 |
TPS62052 |
TPS62054 |
TPS62056 |
| Iout(Max)(A) |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
| Vin(Max)(V) |
10 |
10 |
10 |
10 |
10 |
| Vout(Min)(V) |
0.7 |
0.7 |
1.5 |
1.8 |
3.3 |
| Vout(Max)(V) |
6 |
6 |
1.5 |
1.8 |
3.3 |
| Preset Vout(V) |
|
|
1.5 |
1.8 |
3.3 |
| Iq(Typ)(mA) |
0.012 |
0.012 |
0.012 |
0.012 |
0.012 |
| Switching Frequency(Max)(kHz) |
1000 |
1000 |
1000 |
1000 |
1000 |
| Switch Current Limit(Typ)(A) |
1.4 |
1.4 |
1.4 |
1.4 |
1.4 |
| Topology |
Buck |
Buck |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10MSOP |
10MSOP |
10MSOP |
10MSOP |
10MSOP |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
100 |
100 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
TPS62054 特性
- High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
- 12-µA Quiescent Current (TYP)
- 2.7 V to 10 V Operating Input Voltage Range
- Adjustable Output Voltage Range From 0.7 V to 6 V
- Fixed Output Voltage Options Available in 1.5 V, 1.8 V, and 3.3 V
- Synchronizable to External Clock Signal up to 1.2 MHz
- High Efficiency Over a Wide Load Current Range in Power Save Mode
- 100% Maximum Duty Cycle for Lowest Dropout
- Low Noise Operation in Forced Fixed Frequency PWM Operation Mode
- Internal Softstart
- Overtemperature and Overcurrent Protected
- Available in 10-Pin Microsmall Outline Package MSOP
- APPLICATIONS
- Cellular Phones
- Organizers, PDAs, and Handheld PCs
- Low Power DSP Supply
- Digital Cameras and Hard Disks
TPS62054 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 |
| TPS62054DGS |
ACTIVE |
-40 to 85 |
0.99 | 1ku |
MSOP (DGS) | 10 |
80 | TUBE |
BFM |
| TPS62054DGSG4 |
ACTIVE |
-40 to 85 |
0.99 | 1ku |
MSOP (DGS) | 10 |
80 | TUBE |
BFM |
| TPS62054DGSR |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
MSOP (DGS) | 10 |
2500 | LARGE T&R |
BFM |
| TPS62054DGSRG4 |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
MSOP (DGS) | 10 |
2500 | LARGE T&R |
BFM |
TPS62054 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 |
| TPS62054DGS |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS62054DGS |
| TPS62054DGSG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS62054DGSG4 |
TPS62054DGSG4 |
| TPS62054DGSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS62054DGSR |
| TPS62054DGSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS62054DGSRG4 |
TPS62054DGSRG4 |
TPS62054 应用技术支持与电子电路设计开发资源下载
- TPS62054 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)
TPS62054 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS62054 评估模块 |
TPS62054EVM-234 |
Texas Instruments |
开发电路板/EVM |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS62054 参考设计
| 说明 |
型号 |
公司 |
| LDO、降压/升压、2 相同步降压、同步升压参考设计 |
PR038 |
Texas Instruments |
| 以太网电源 - 同步反向参考设计 |
PMP386 |
Texas Instruments |
| 同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V |
PMP146 |
Texas Instruments |
| 降压/升压参考设计 |
PMP379 |
Texas Instruments |
