TPS40002 低输入 (2.25V-5.5V) 300kHz 频率同步降压控制器，仅用作源控制器
TPS40002 描述
The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate DriveTM technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.
|
TPS40000 |
TPS40002 |
TPS40007 |
TPS40009 |
| Topology |
Buck |
Buck |
Buck |
Buck |
| Vin(Min)(V) |
2.25 |
2.25 |
2.25 |
2.25 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
0.7 |
0.7 |
0.7 |
0.7 |
| Vout(Max)(V) |
4 |
4 |
4 |
4 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
| Iout(Max)(A) |
15 |
15 |
15 |
15 |
| Switching Frequency(Max)(kHz) |
300 |
600 |
300 |
600 |
| Iq(Typ)(mA) |
1.5 |
1.5 |
1.5 |
1.5 |
| Pin/Package |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
10MSOP-PowerPAD |
| Thermal Shutdown |
Yes |
Yes |
Yes |
Yes |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
87 |
83 |
87 |
83 |
TPS40002 特性
- Operating Input Voltage 2.25 V to 5.5 V
- Output Voltage as Low as 0.7 V
- 1% Internal 0.7 V Reference
- Predictive Gate DriveTM N-Channel MOSFET Drivers for Higher Efficiency
- Externally Adjustable Soft-Start and Overcurrent Limit
- Source-Only Current or Source/Sink Current
- Versions for Starting into VOUT Pre-Bias
- 10-Lead MSOP PowerPadTM Package for Higher Performance
- Thermal Shutdown
- Internal Boostrap Diode
- Fixed-Frequency, Voltage-Mode Control
- TPS40000/1/4 300-kHz
- TPS40002/3/5 600-kHz
- APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules
TPS40002 芯片订购指南
TPS40002 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 |
| TPS40002DGQ |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40002DGQ |
| TPS40002DGQG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40002DGQG4 |
TPS40002DGQG4 |
| TPS40002DGQR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40002DGQR |
| TPS40002DGQRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40002DGQRG4 |
TPS40002DGQRG4 |
TPS40002 应用技术支持与电子电路设计开发资源下载
- TPS40002 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)
TPS40002 参考设计
| 说明 |
型号 |
公司 |
| 具有 3.0-3.6V 输入电压的同步降压控制器 |
PR070 |
Texas Instruments |
| 输入电压 2.25-3.3V 的同步降压 |
PR072 |
Texas Instruments |
| 输入电压 3.0-5V 的同步降压 |
PR073 |
Texas Instruments |
| 输入电压 3.0-5V 的同步降压控制器 |
PR071 |
Texas Instruments |