TPS62350 具有 I2C 用于动态电压调节的 1A、3MHz 降压转换器
TPS62350 描述
The TPS6235x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6235x supports up to 800-mA load current and allows the use of small, low cost inductors and capacitors.
The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I2C interface down to 0.6 V, the device supports low-voltage DSPs and processors core power supplies in smart-phones, PDAs, and handheld computers.
The TPS6235x operates at 3-MHz fixed switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
|
TPS62350 |
TPS62351 |
TPS62352 |
TPS62353 |
TPS62354 |
TPS62355 |
TPS62356 |
| Iout(Max)(A) |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
1 |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
2.7 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
0.75 |
0.9 |
0.75 |
0.75 |
0.75 |
0.75 |
1.5 |
| Vout(Max)(V) |
1.5375 |
1.6875 |
1.4375 |
1.5375 |
1.5375 |
1.5375 |
1.975 |
| Iq(Typ)(mA) |
0.028 |
0.028 |
0.028 |
0.028 |
0.028 |
0.028 |
0.028 |
| Switching Frequency(Max)(kHz) |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
3000 |
| Switch Current Limit(Typ)(A) |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
1.35 |
| 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 |
12DSBGA |
10SON, 12DSBGA |
10SON, 12DSBGA |
12DSBGA |
12DSBGA |
10SON |
12DSBGA |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
80 |
80 |
80 |
80 |
80 |
80 |
80 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
TPS62350 特性
- 88% Efficiency at 3-MHz Operation
- 800-mA Output Current at VI = 2.7 V
- 3-MHz Fixed Frequency Operation
- Best in Class Load and Line Transient
- Complete 1-mm Component Profile Solution
- ±2% PWM DC Voltage Accuracy
- 35-ns Minimum On-Time
- Efficiency Optimized Power-Save Mode (Light PFM)
- Transient Optimized Power-Save Mode (Fast PFM)
- 28-µA Typical Quiescent Current
- I2C Compatible Interface up to 3.4 Mbps
- Pin-Selectable Output Voltage
- Synchronizable On the Fly to External Clock Signal
- Available in a 10-Pin QFN (3 × 3 mm) and 12-Pin NanoFree™ (CSP) Packaging
- APPLICATIONS
- SmartReflex™ Compliant Power Supply
- Split Supply DSPs and µP Solutions
OMAP™, XSCALE™
- Cell Phones, Smart-Phones
- PDAs, Pocket PCs
- Digital Cameras
TPS62350 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 |
| TPS62350YZGR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
DSBGA (YZG) | 12 |
3000 | LARGE T&R |
TPS62350 |
| TPS62350YZGT |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
DSBGA (YZG) | 12 |
250 | SMALL T&R |
TPS62350 |
TPS62350 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 |
| TPS62350YZGR |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
|
TPS62350YZGR |
| TPS62350YZGT |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
|
TPS62350YZGT |
TPS62350 应用技术支持与电子电路设计开发资源下载
- TPS62350 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)
TPS62350 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS62350EVM Evaluation Module |
TPS62350EVM-201 |
Texas Instruments |
开发电路板/EVM |
| Software for TPS6235x Evaluation Modules |
TPS6235XEVM-SW |
Texas Instruments |
应用软件 |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS62350 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 |
