TPS54386 带有集成高端 MOSFET 的 3A 双路非同步降压转换器，600kHz
TPS54386 描述
The TPS54383 and TPS54386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.
With an internally-determined operating frequency, soft start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.
|
TPS54383 |
TPS54386 |
TPS55383 |
TPS55386 |
| Iout(Max)(A) |
3 |
3 |
3 |
3 |
| Iout2(Max)(A) |
3 |
3 |
3 |
3 |
| Vin(Min)(V) |
4.5 |
4.5 |
4.5 |
4.5 |
| Vin(Max)(V) |
28 |
28 |
28 |
28 |
| Vout(Min)(V) |
0.8 |
0.8 |
0.8 |
0.8 |
| Vout(Max)(V) |
25.2 |
25.2 |
25.2 |
25.2 |
| Iq(Typ)(mA) |
1.8 |
1.8 |
1.8 |
1.8 |
| Switching Frequency(Typ)(kHz) |
300 |
600 |
300 |
600 |
| Switch Current Limit(Typ)(A) |
4.5 |
4.5 |
4.5 |
4.5 |
| Topology |
Buck |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
-40 to 125 |
-40 to 125 |
-40 to 125 |
| Pin/Package |
14HTSSOP |
14HTSSOP |
16HTSSOP |
16HTSSOP |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
90 |
85 |
90 |
85 |
| Vout2(Min)(V) |
0.8 |
0.8 |
0.8 |
0.8 |
| Vout2(Max)(V) |
25.2 |
25.2 |
25.2 |
25.2 |
| Regulated Outputs(#) |
2 |
2 |
2 |
2 |
TPS54386 特性
- 4.5-V to 28-V Input Range
- Output Voltage Range 0.8 V to 90% of Input Voltage
- Output Current Up to 3 A
- Two Fixed Switching Frequency Versions:
- TPS54383: 300 kHz
- TPS54386: 600 kHz
- Three Selectable Levels of Overcurrent Protection (Output 2)
- 0.8-V 1.5% Voltage Reference
- 2.1-ms Internal Soft Start
- Dual PWM Outputs 180° Out-of-Phase
- Ratiometric or Sequential Startup Modes Selectable by a Single Pin
- 85-mOhm Internal High-Side MOSFETs
- Current Mode Control
- Internal Compensation (See Page 16)
- Pulse-by-Pulse Overcurrent Protection
- Thermal Shutdown Protection at +148°C
- 14-Pin PowerPADTM HTSSOP package
- APPLICATIONS
TPS54386 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 |
| TPS54386PWP |
ACTIVE |
-40 to 125 |
2.50 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
TPS54386 |
| TPS54386PWPG4 |
ACTIVE |
-40 to 125 |
2.50 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
TPS54386 |
| TPS54386PWPR |
ACTIVE |
-40 to 125 |
2.25 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
TPS54386 |
| TPS54386PWPRG4 |
ACTIVE |
-40 to 125 |
2.25 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
TPS54386 |
TPS54386 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 |
| TPS54386PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54386PWP |
| TPS54386PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54386PWPG4 |
TPS54386PWPG4 |
| TPS54386PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54386PWPR |
| TPS54386PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54386PWPRG4 |
TPS54386PWPRG4 |
TPS54386 应用技术支持与电子电路设计开发资源下载
- TPS54386 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)
TPS54386 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS54386 13.2V 输入、双路 5V 和 3.3V 输出、2A 评估模块 |
TPS54386EVM |
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 |
TPS54386 参考设计
| 说明 |
型号 |
公司 |
| 3-A, 600-kHz Dual Wide-Input Buck Converter |
PMP2808 |
Texas Instruments |