TPS61202 采用 3x3 QFN 封装、具有 1.3A 开关和“降压模式”的 0.3V 输入电压升压转换器
TPS61202 描述
The TPS6120x devices provide a power supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. It is also used in fuel cell or solar cell powered devices where the capability of handling low input voltages is essential. Possible output currents are depending on the input to output voltage ratio. The devices provides output currents up to 600 mA at a 5-V output while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters the Power Save mode to maintain a high efficiency over a wide load current range.
|
TPS61200 |
TPS61201 |
TPS61202 |
| Iout(Max)(A) |
1.2 |
1.2 |
1.2 |
| Iq(Typ)(mA) |
0.05 |
0.05 |
0.05 |
| Vin(Min)(V) |
0.3 |
0.3 |
0.3 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
1.8 |
3.3 |
5 |
| Vout(Max)(V) |
5.5 |
3.3 |
5 |
| Preset Vout(V) |
|
3.3 |
5 |
| Switching Frequency(Max)(kHz) |
1250 |
1250 |
1250 |
| Regulated Outputs(#) |
1 |
1 |
1 |
| Duty Cycle(Max)(%) |
95 |
95 |
95 |
| Switch Current Limit(Typ)(A) |
1.35 |
1.35 |
1.35 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10SON |
10SON |
10SON |
| Topology |
Boost |
Boost |
Boost |
TPS61202 特性
- More than 90% Efficiency at
- 300 mA Output Current at 3.3 V (VIN ≥ 2.4 V)
- 600 mA Output Current at 5 V (VIN ≥ 3 V)
- Automatic Transition between Boost Mode and Down Conversion Mode
- Device Quiescent Current less than 55 µA
- Startup into Full Load at 0.5 V Input Voltage
- Operating Input Voltage Range from 0.3 V to 5.5 V
- Programmable Undervoltage Lockout Threshold
- Output Short Circuit Protection Under all Operating Conditions
- Fixed and Adjustable Output Voltage Options from 1.8 V to 5.5 V
- Power Save Mode for Improved Efficiency at Low Output Power
- Forced fixed Frequency Operation possible
- Load Disconnect During Shutdown
- Overtemperature Protection
- Small 3 mm x 3 mm QFN-10 Package
- APPLICATIONS
- All Single-Cell, Two-Cell and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery Powered Products
- Fuel Cell And Solar Cell Powered Products
- Portable Audio Players
- PDAs
TPS61202 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 |
| TPS61202DRCR |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BRT |
| TPS61202DRCRG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BRT |
| TPS61202DRCT |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BRT |
| TPS61202DRCTG4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BRT |
TPS61202 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 |
| TPS61202DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61202DRCR |
| TPS61202DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61202DRCRG4 |
TPS61202DRCRG4 |
| TPS61202DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61202DRCT |
| TPS61202DRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61202DRCTG4 |
TPS61202DRCTG4 |
TPS61202 应用技术支持与电子电路设计开发资源下载
- TPS61202 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)
TPS61202 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS61202 评估模块 |
TPS61202EVM-179 |
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 |
