TPS62403 Dual Channel Step-Down Converter with 1-Pin EasyScale Interface
TPS62403 描述
The TPS6240x device series are synchronous dual step-down DC-DC converters optimized for battery powered portable applications. They provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3V or 5V voltage rail.
With an input voltage range of 2.5V to 6V the TPS62403 is ideal to power portable applications like smart phones, PDAs and other portable equipment.
With the EasyScale™ serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403, and TPS62404 support one pin controlled simple Dynamic Voltage Scaling for low power processors.
|
TPS62400 |
TPS62401 |
TPS62402 |
TPS62403 |
TPS62404 |
TPS62410 |
TPS62420 |
| Iout(Max)(A) |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.8 |
0.6 |
| Iout2(Max)(A) |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.8 |
1 |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
| Vin(Max)(V) |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
| Vout(Min)(V) |
0.6 |
1.1 |
1.2 |
1.1 |
1.2 |
0.6 |
0.6 |
| Vout(Max)(V) |
6 |
1.575 |
1.8 |
1.575 |
1.9 |
6 |
6 |
| Iq(Typ)(mA) |
0.032 |
0.032 |
0.032 |
0.032 |
0.032 |
0.032 |
0.032 |
| Switching Frequency(Max)(kHz) |
2250 |
2250 |
2250 |
2250 |
2250 |
2250 |
2250 |
| Switch Current Limit(Typ)(A) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Topology |
Buck |
Buck |
Buck |
Buck |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10SON |
10SON |
10SON |
10SON |
10SON |
10SON |
10SON |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
| Vout2(Min)(V) |
0.6 |
2.8 |
3.3 |
2.8 |
3.3 |
0.6 |
0.6 |
| Vout2(Max)(V) |
6 |
2.8 |
3.3 |
2.8 |
3.3 |
6 |
6 |
| Regulated Outputs(#) |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Thermal Shutdown |
No |
No |
No |
No |
No |
No |
No |
TPS62403 特性
- High Efficiency—Up to 95%
- VIN Range From 2.5 V to 6 V
- 2.25 MHz Fixed Frequency Operation
- Output Current 400 mA and 600 mA
- Adjustable Output Voltage From 0.6V to VIN
- Pin Selectable Output Voltage Supports Simple Dynamic Voltage Scaling
- EasyScale™ Optional One-Pin Serial Interface
- Power Save Mode at Light Load Currents
- 180° Out of Phase Operation
- Output Voltage Accuracy in PWM Mode ±1%
- Typical 32-µA Quiescent Current for Both Converters
- 100% Duty Cycle for Lowest Dropout
- Available in a 10-Pin QFN (3×3mm)
- APPLICATIONS
- Cell Phones, Smart-phones
- PDAs, Pocket PCs
- OMAP™ and Low Power DSP Supply
- Portable Media Players
- Digital Radio
- Digital Cameras
TPS62403 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 |
| TPS62403DRCR |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BQE |
| TPS62403DRCRG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BQE |
| TPS62403DRCT |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BQE |
| TPS62403DRCTG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BQE |
TPS62403 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 |
| TPS62403DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS62403DRCR |
| TPS62403DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS62403DRCRG4 |
TPS62403DRCRG4 |
| TPS62403DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS62403DRCT |
| TPS62403DRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS62403DRCTG4 |
TPS62403DRCTG4 |
TPS62403 应用技术支持与电子电路设计开发资源下载
- TPS62403 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)
TPS62403 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS62403 评估模块 |
TPS62403EVM-167 |
Texas Instruments |
开发电路板/EVM |
| Software for TPS624xx Evaluation Modules |
TPS624XXEVM-SW |
Texas Instruments |
应用软件 |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS62403 参考设计
| 说明 |
型号 |
公司 |
| LDO、降压/升压、2 相同步降压、同步升压参考设计 |
PR038 |
Texas Instruments |
| 以太网电源 - 同步反向参考设计 |
PMP386 |
Texas Instruments |
| 同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V |
PMP146 |
Texas Instruments |
| 降压/升压参考设计 |
PMP379 |
Texas Instruments |
