TPS61020裕鼎祥咨询电话：139 2843 4054
TPS61020 采用 QFN-10 封装的可调节、1.5A 开关、96% 高效升压转换器，具有降压模式
TPS61020描述
The TPS61020 devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline, and discharge it down to 0.9 V. TPS61020 can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The TPS61020 is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the TPS61020 enters the Power Save mode to maintain a high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency。
TPS61020技术特性
- 【TPS61020】96% Efficient Synchronous Boost Converter
- 【TPS61020】Output Voltage Remains Regulated When Input Voltage Exceeds Nominal Output Voltage
- 【TPS61020】Device Quiescent Current: 25 µA (Typ)
- 【TPS61020】Input Voltage Range: 0.9 V to 6.5 V
- 【TPS61020】Fixed and Adjustable Output Voltage Options Up to 5.5 V
- 【TPS61020】Power Save Mode for Improved Efficiency at Low Output Power
- 【TPS61020】Low Battery Comparator
- 【TPS61020】Low EMI-Converter (Integrated Antiringing Switch)
- 【TPS61020】Load Disconnect During Shutdown
- 【TPS61020】Over-Temperature Protection
- 【TPS61020】Small 3 mm × 3 mm QFN-10 Package
TPS61020应用领域
- All One-Cell, Two-Cell and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery Powered Products
- Portable Audio Players
- PDAs
- Cellular Phones
- Personal Medical Products
- Camera White LED Flash Light
| TPS61020 | TPS61024 | TPS61025 | TPS61026 | TPS61027 | TPS61028 | TPS61029 | |
| Iout(Max)(A) | 1.2 | 1.2 | 1.2 | 1.5 | 1.2 | 0.8 | 1.5 |
| Iq(Typ)(mA) | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Vin(Min)(V) | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
| Vin(Max)(V) | 6.5 | 6.5 | 6.5 | 5.5 | 6.5 | 6.5 | 5.5 |
| Vout(Min)(V) | 1.8 | 1.8 | 1.8 | ||||
| Vout(Max)(V) | 5.5 | 5.5 | 5.5 | ||||
| Preset Vout(V) | 3 | 3.3 | 5 | 5 | |||
| Switching Frequency(Max)(kHz) | 720 | 720 | 720 | 720 | 720 | 720 | 720 |
| Regulated Outputs(#) | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Duty Cycle(Max)(%) | 100 | 100 | 100 | 100 | 100 | 100 | |
| Switch Current Limit(Typ)(A) | 1.5 | 1.5 | 1.5 | 1.8 | 1.5 | 0.8 | 1.8 |
| 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 |
| Topology | Boost | Boost | Boost | Boost | Boost | Boost | Boost |
