TPS62000-HT - 高温高效降压低功耗 DC-DC 转换器

TPS62000-HT是TI德州仪器公司的一款转换器（集成开关）产品，TPS62000-HT是高温高效降压低功耗 DC-DC 转换器，本站介绍了TPS62000-HT的封装应用图解、特点和优点、功能等，并给出了与TPS62000-HT相关的TI元器件型号供参考。

TPS62000-HT - 高温高效降压低功耗 DC-DC 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS62000 device is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS62000 operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS62000 is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62000-HT is available in the 10-pin (HKK). The device operates a free-air temperature range of –55°C to 210°C.

产品特性

High-Efficiency Synchronous Step-Down Converter With Greater Than 95% Efficiency
2 V to 5.5 V Operating Input Voltage Range
Adjustable Output Voltage Range From 0.8 V to VI
Synchronizable to External Clock Signal up to 1 MHz
Up to 300 mA Output Current
Pin-Programmable Current Limit
High Efficiency Over a Wide Load Current Range in Power Save Mode
100% Maximum Duty Cycle for Lowest Dropout
Low-Noise Operation Antiringing Switch and PFM/PWM Operation Mode
Internal Softstart
50-µA Quiescent Current (TYP)
Evaluation Module Available for Commercial Temperature Range
APPLICATIONS
- Down-Hole Drilling
- High Temperature Environments
SUPPORTS EXTREME TEMPERATURE APPLICATIONS
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Extreme (–55°C/210°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
- Texas Instruments high temperature products utilize highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures.

(1) Custom temperature ranges available.

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