TPS61241 5V、400mA、4MHz 升压 DC/DC 转换器
TPS61241 描述
The TPS6124x device is a high efficient synchronous step up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450mA. The TPS61240 has an input valley current limit of 500mA, and the TPS61241 has an input valley current of 600mA.
With an input voltage range of 2.3V to 5.5V the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.
The TPS6124x presents a high impedance at the VOUT pin when shut down.
|
TPS61240 |
TPS61241 |
| Iout(Max)(A) |
0.5 |
0.6 |
| Iq(Typ)(mA) |
0.03 |
0.03 |
| Vin(Min)(V) |
2.3 |
2.3 |
| Vin(Max)(V) |
5.5 |
5.5 |
| Vout(Min)(V) |
5 |
5 |
| Vout(Max)(V) |
5 |
5 |
| Preset Vout(V) |
5 |
5 |
| Switching Frequency(Max)(kHz) |
4000 |
4000 |
| Regulated Outputs(#) |
1 |
1 |
| Switch Current Limit(Typ)(A) |
0.6 |
0.7 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
6DSBGA, 6SON |
6DSBGA |
| Topology |
Boost |
Boost |
TPS61241 特性
- Efficiency > 90% at Nominal Operating Conditions
- Total DC Output Voltage Accuracy 5.0V±2%
- Typical 30 µA Quiescent Current
- Best in Class Line and Load Transient
- Wide VIN Range From 2.3V to 5.5V
- Output current up to 450mA
- Automatic PFM/PWM Mode transition
- Low Ripple Power Save Mode for Improved Efficiency at Light Loads
- Internal Softstart, 250µs typical Start-Up time
- 3.5MHz Typical Operating Frequency
- Load Disconnect During Shutdown
- Current Overload and Thermal Shutdown Protection
- Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors)
- Total Solution Size <13 mm2
- Available in a 6-pin WCSP and 2×2-SON Package
- APPLICATIONS
- USB-OTG Applications
- Portable HDMI Applications
- Cell Phones, Smart-Phones
- PDAs, Pocket PCs
TPS61241 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS61241YFFR |
ACTIVE |
-40 to 85 |
0.80 | 1ku |
DSBGA (YFF) | 6 |
3000 | LARGE T&R |
GM |
| TPS61241YFFT |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
DSBGA (YFF) | 6 |
250 | SMALL T&R |
GM |
TPS61241 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 |
| TPS61241YFFR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS61241YFFR |
| TPS61241YFFT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS61241YFFT |
TPS61241 应用技术支持与电子电路设计开发资源下载
- TPS61241 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)
TPS61241 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS61241 评估模块 |
TPS61241EVM-360 |
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 |
