TPS54283 2A DUAL NON-SYNCHRONOUS CONVERTER
TPS54283 描述
TPS54283 and TPS54286 are dual output non-synchronous buck converters capable of supporting 2-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 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 3 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 not needing the full load capability of both outputs
|
TPS54283 |
TPS54286 |
| Iout(Max)(A) |
2 |
2 |
| Iout2(Max)(A) |
2 |
2 |
| Vin(Min)(V) |
4.5 |
4.5 |
| Vin(Max)(V) |
28 |
28 |
| Vout(Min)(V) |
0.8 |
0.8 |
| Vout(Max)(V) |
25.2 |
25.2 |
| Iq(Typ)(mA) |
1.8 |
1.8 |
| Switching Frequency(Typ)(kHz) |
300 |
600 |
| Switch Current Limit(Typ)(A) |
3 |
3 |
| Topology |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
14HTSSOP |
14HTSSOP |
| Rating |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
90 |
85 |
| Vout2(Min)(V) |
0.8 |
0.8 |
| Vout2(Max)(V) |
25.2 |
25.2 |
| Regulated Outputs(#) |
2 |
2 |
| Thermal Shutdown |
Yes |
Yes |
TPS54283 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 2 A
- Two Fixed Switching Frequency Versions:
- TPS54283: 300 kHz
- TPS54286: 600 kHz
- Two 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
- 100-mΩ 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 PowerPAD™ HTSSOP package
- APPLICATIONS
TPS54283 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 |
| TPS54283PWP |
ACTIVE |
-40 to 85 |
2.65 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
54283 |
| TPS54283PWPG4 |
ACTIVE |
-40 to 85 |
2.65 | 1ku |
HTSSOP (PWP) | 14 |
90 | TUBE |
54283 |
| TPS54283PWPR |
ACTIVE |
-40 to 85 |
2.40 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
54283 |
| TPS54283PWPRG4 |
ACTIVE |
-40 to 85 |
2.40 | 1ku |
HTSSOP (PWP) | 14 |
2000 | LARGE T&R |
54283 |
TPS54283 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 |
| TPS54283PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54283PWP |
| TPS54283PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54283PWPG4 |
TPS54283PWPG4 |
| TPS54283PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54283PWPR |
| TPS54283PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS54283PWPRG4 |
TPS54283PWPRG4 |
TPS54283 应用技术支持与电子电路设计开发资源下载
- TPS54283 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)
TPS54283 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS54283 12V 输入、双路 5V 和 3.3V 输出、2A 评估模块 |
TPS54283EVM |
Texas Instruments |
开发电路板/EVM |
| 用于 SWIFT DC/DC 的反向电源计算器，它具有集成 FET |
SWIFTINV-CALC |
Texas Instruments |
计算实用程序 |
| 用于 SWIFT DC/DC 转换器的正负输出电压分离轨计算器 |
SWIFTPOSNEG-CALC |
Texas Instruments |
计算实用程序 |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS54283 参考设计
| 说明 |
型号 |
公司 |
| Synchronous Buck Controller Doubles as a 2-A Buck Boost Inverter |
PMP4856 |
Texas Instruments |
