TPS61090 2A 开关、96% 高效升压转换器
TPS61090 描述
The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible.
|
TPS61090 |
TPS61091 |
TPS61092 |
| Iout(Max)(A) |
2 |
2 |
2 |
| Iq(Typ)(mA) |
0.02 |
0.02 |
0.02 |
| Vin(Min)(V) |
1.8 |
1.8 |
1.8 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
1.8 |
|
|
| Vout(Max)(V) |
5.5 |
|
|
| Preset Vout(V) |
|
3.3 |
5 |
| Switching Frequency(Max)(kHz) |
700 |
700 |
700 |
| Regulated Outputs(#) |
1 |
1 |
1 |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
| Switch Current Limit(Typ)(A) |
2 |
2 |
2 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
16QFN |
16QFN |
16QFN |
| Topology |
Boost |
Boost |
Boost |
TPS61090 特性
- Synchronous (96% Efficient) Boost Converter With 500-mA Output Current From 1.8-V Input
- Available in a 16-Pin QFN 4 x 4 Package
- Device Quiescent Current: 20-µA (Typ)
- Input Voltage Range: 1.8-V to 5.5-V
- Adjustable Output Voltage Up to 5.5-V Fixed Output Voltage Options
- Power Save Mode for Improved Efficiency at Low Output Power
- Low Battery Comparator
- Low EMI-Converter (Integrated Antiringing Switch)
- Load Disconnect During Shutdown
- Over-Temperature Protection
- APPLICATIONS
- All Single Cell Li or Dual Cell Battery, or USB Powered Operated Products as MP-3 Player, PDAs, and Other Portable Equipment
TPS61090 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS61090RSAR |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
QFN (RSA) | 16 |
3000 | LARGE T&R |
TPS6
1090 |
| TPS61090RSARG4 |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
QFN (RSA) | 16 |
3000 | LARGE T&R |
TPS6
1090 |
TPS61090 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 |
| TPS61090RSAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-YEAR |
|
TPS61090RSAR |
| TPS61090RSARG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-YEAR |
TPS61090RSARG4 |
TPS61090RSARG4 |
TPS61090 应用技术支持与电子电路设计开发资源下载
- TPS61090 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)
TPS61090 相关工具
TPS61090 参考设计
| 说明 |
型号 |
公司 |
| 以太网电源 - 同步反向参考设计 |
PMP411 |
Texas Instruments |
