TPS40195 4.5V TO 20V SYNCHRONOUS BUCK CONTROLLER WITH SYNCHRONIZATION AND POWER GOOD
|
TPS40195 |
| Topology |
Buck |
| Vin(Min)(V) |
4.5 |
| Vin(Max)(V) |
20 |
| Vout(Min)(V) |
0.591 |
| Vout(Max)(V) |
17 |
| Regulated Outputs(#) |
1 |
| Iout(Max)(A) |
20 |
| Switching Frequency(Max)(kHz) |
600 |
| Iq(Typ)(mA) |
4 |
| Pin/Package |
16TSSOP, 16VQFN |
| Thermal Shutdown |
Yes |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
85 |
TPS40195 描述
The TPS40195 is a flexible synchronous buck controller that operates from a nominal 4.5 V to 20 V supply. This controller implements voltage mode control with the switching frequency adjustable from 100 kHz to 600 kHz. Flexible features found on this device include selectable soft-start time, programmable short circuit limit, programmable undervoltage lockout (UVLO) and synchronization capability. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs. Over-current detection is done by sensing the voltage drop across the low-side MOSFET when it is on, and comparing it with a user programmable threshold.
The threshold is set with a single external resistor connected from ILIM to GND.
TPS40195 特性
- Input Operating Voltage Range: 4.5 V to 20 V
- Output Voltage as Low as 0.591 V ±0.5%
- 180° Bi-Directional Out-of-Phase Synchronization
- Internal 5-V Regulator
- High and Low MOSFET Sense Overcurrent
- 100 kHz to 600 kHz Switching Frequency
- Enable and Power Good
- Programmable UVLO and Hysteresis
- Thermal Shutdown at 150°C
- Selectable Soft-Start
- Pre-Bias Output Safe
- APPLICATIONS
- Digital TV
- Entry-Level and Midrange Servers
- Networking Equipment
- Non-Isolated DC-DC modules
TPS40195 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 |
| TPS40195PW |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
40195 |
| TPS40195PWG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
40195 |
| TPS40195PWR |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
40195 |
| TPS40195PWRG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
40195 |
| TPS40195RGYR |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
VQFN (RGY) | 16 |
3000 | LARGE T&R |
40195 |
| TPS40195RGYRG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
VQFN (RGY) | 16 |
3000 | LARGE T&R |
40195 |
| TPS40195RGYT |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
VQFN (RGY) | 16 |
250 | SMALL T&R |
40195 |
| TPS40195RGYTG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
VQFN (RGY) | 16 |
250 | SMALL T&R |
40195 |
TPS40195 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 |
| TPS40195PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40195PW |
| TPS40195PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40195PWG4 |
TPS40195PWG4 |
| TPS40195PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS40195PWR |
| TPS40195PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS40195PWRG4 |
TPS40195PWRG4 |
| TPS40195RGYR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS40195RGYR |
| TPS40195RGYRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS40195RGYRG4 |
TPS40195RGYRG4 |
| TPS40195RGYT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS40195RGYT |
| TPS40195RGYTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS40195RGYTG4 |
TPS40195RGYTG4 |
TPS40195 应用技术支持与电子电路设计开发资源下载
- TPS40195 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)
TPS40195 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS40195 20V 输入、3.3V 输出、20A 评估模块 |
TPS40195EVM-001 |
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 |
TPS40195 参考设计
| 说明 |
型号 |
公司 |
| High-Frequency Synchronous Buck Converter for Optimized Efficiency |
PMP3080 |
Texas Instruments |
