TPS62651 具有 I2C 兼容接口的 800mA、6MHz 高效降压转换器
|
TPS62650 |
TPS62651 |
| Iout(Max)(A) |
0.8 |
0.8 |
| Vin(Min)(V) |
2.3 |
2.3 |
| Vin(Max)(V) |
5.5 |
5.5 |
| Vout(Min)(V) |
0.75 |
0.75 |
| Vout(Max)(V) |
1.4375 |
1.4375 |
| Iq(Typ)(mA) |
0.038 |
0.038 |
| Switching Frequency(Typ)(kHz) |
6000 |
6000 |
| Topology |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
9DSBGA |
9DSBGA |
| Rating |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
100 |
100 |
| Regulated Outputs(#) |
1 |
1 |
| Thermal Shutdown |
Yes |
Yes |
TPS62651 描述
The TPS6265x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to 800mA 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 0.75V, the device supports low-voltage DSPs and processors core power supplies in smart-phones and handheld computers.
The TPS6265x operates at a regulated 6MHz 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.
TPS62651 特性
- 86% Efficiency at 6 MHz Operation
- 38µA Quiescent Current
- Wide VIN Range From 2.3 V to 5.5 V
- 6MHz Regulated Frequency Operation
- Best-In-Class Load and Line Transient
- ±2% PWM DC Voltage Accuracy
- Automatic PFM/PWM Mode Switching
- Low Ripple Light-Load PFM
- I2C Compatible Interface up to 3.4 Mbps
- Pin-Selectable Output Voltage (VSEL)
- Internal Soft-Start, <150-µs Start-Up Time
- Current Overload and Thermal Shutdown Protection
- Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors)
- Complete Sub 1-mm Component Profile Solution
- Total Solution Size <13mm2
- Available in a 9-Pin NanoFree™ (CSP) Packaging
- APPLICATIONS
- SmartReflex™ Compliant Power Supply
- OMAP™ Application Processor Core Supply
- Cell Phones, Smart-Phones
TPS62651 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 |
| TPS62651YFFR |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
DSBGA (YFF) | 9 |
3000 | LARGE T&R |
GE |
| TPS62651YFFT |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
DSBGA (YFF) | 9 |
250 | SMALL T&R |
GE |
TPS62651 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 |
| TPS62651YFFR |
|
|
|
TPS62651YFFR |
TPS62651YFFR |
| TPS62651YFFT |
|
|
|
TPS62651YFFT |
TPS62651YFFT |
TPS62651 应用技术支持与电子电路设计开发资源下载
- TPS62651 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)
TPS62651 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS62651 评估模块 |
TPS62651EVM-419 |
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 |
TPS62651 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 |
