TPS5140 用于笔记本电脑电源的四输出（3 降压，1 升压）高效 DC/DC 控制器
|
TPS5140 |
| Topology |
Buck |
| Vin(Min)(V) |
4.5 |
| Vin(Max)(V) |
28 |
| Vout(Min)(V) |
1.2 |
| Vout(Max)(V) |
26 |
| Regulated Outputs(#) |
4 |
| Iout(Max)(A) |
20 |
| Switching Frequency(Max)(kHz) |
350 |
| Iq(Typ)(mA) |
1.8 |
| Pin/Package |
64TQFP |
| Thermal Shutdown |
No |
| Vout2(Min)(V) |
1.2 |
| Vout2(Max)(V) |
26 |
| Iout2(A) |
20 |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
75 |
| Vdo(Typ)(mV) |
200 |
TPS5140 描述
The TPS5140 is a dc/dc controller that incorporates three synchronous-buck controllers and one nonsynchronous 12-V boost converter on one chip to power the voltage rails needed by notebook peripheral components. On-chip high-side and low-side synchronous rectifier drivers are integrated to drive less expensive N-channel power MOSFETs. The nonsynchronous boost converter includes the N channel power MOSFET and supports 120 mA for the PCMCIA power supply. The outputs are controlled independently and two of the synchronous-buck controllers operate 180 degrees out of phase, with the third lowering the input current ripple and allowing a smaller input capacitance to reduce power supply cost. For higher efficiency under all load conditions, the TPS5140 automatically adjusts each channel from the PWM mode to the skip mode independently.
TPS5140 特性
- Three Independent Step-Down DC/DC Controllers and One 12-V Boost DC/DC Converter
- 4.5 V \x96 28 V Input Voltage Range
- Step-Down Controller Output Voltages Adjustable Down to 1.2 V
- Synchronous-Buck Operation for High Efficiency
- PWM Mode Control
- Auto PWM/SKIP Mode for High Efficiency Under All Load Conditions
- High Speed Error Amplifier
- Separate Standby Control and Over Current Protection for Each Channel
- Over Voltage and Under Voltage Protection
- Programmable Short Circuit Protection
- Power Good With Programmable Delay Time
- 5 V and 3.3 V Linear Regulators
TPS5140 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 |
| TPS5140PAG |
ACTIVE |
-20 to 85 |
4.25 | 1ku |
TQFP (PAG) | 64 |
160 | EIAJ TRAY (5+1) |
TPS5140 |
| TPS5140PAGG4 |
ACTIVE |
-20 to 85 |
4.25 | 1ku |
TQFP (PAG) | 64 |
160 | EIAJ TRAY (5+1) |
TPS5140 |
| TPS5140PAGR |
ACTIVE |
-20 to 85 |
3.85 | 1ku |
TQFP (PAG) | 64 |
1500 | LARGE T&R |
TPS5140 |
| TPS5140PAGRG4 |
ACTIVE |
-20 to 85 |
3.85 | 1ku |
TQFP (PAG) | 64 |
1500 | LARGE T&R |
TPS5140 |
TPS5140 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 |
| TPS5140PAG |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS5140PAG |
| TPS5140PAGG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS5140PAGG4 |
TPS5140PAGG4 |
| TPS5140PAGR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS5140PAGR |
| TPS5140PAGRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS5140PAGRG4 |
TPS5140PAGRG4 |
TPS5140 应用技术支持与电子电路设计开发资源下载
- TPS5140 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)
TPS5140 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 使用 TPS5140 的高性能双路输出同步降压评估模块 |
TPS5140EVM-476 |
Texas Instruments |
开发电路板/EVM |
TPS5140 参考设计
| 说明 |
型号 |
公司 |
| 二相同步 降压，输入电压为 5V 或 12V。 多路输出电压：1.8V 和 3.3V |
PMP176 |
Texas Instruments |
| 同步降压时，输入电压为 19.5V |
PMP070 |
Texas Instruments |
| 同步降压，输入电压为 12V |
PMP217 |
Texas Instruments |
| 热插拔、推挽、同步 降压、负反向、双路同步 降压参考设计 |
PMP156 |
Texas Instruments |
| 集成 FET、正向、双路同步的同步降压 降压参考设计 |
PMP041 |
Texas Instruments |