TPS62005-Q1 - 汽车类高效率、步降、低功率 DC-DC 转换器

TPS62005-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS62005-Q1是汽车类高效率、步降、低功率 DC-DC 转换器，本站介绍了TPS62005-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS62005-Q1相关的TI元器件型号供参考。

TPS62005-Q1 - 汽车类高效率、步降、低功率 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 TPS6200x devices are a family of low-noise synchronous step-down dc-dc converters that are 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 TPS6200x operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS6200x 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 TPS6200x is available in the 10-pin (DGS) microsmall outline package (MSOP). The devices operate over a junction temperature range of –40°C to 125°C.

产品特性

Qualified for Automotive Applications
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
Fixed Output Voltage Options Available in 0.9 V, 1 V, 1.2 V, 1.5 V, 1.8 V, 1.9 V, 2.5 V, and 3.3 V
Synchronizable to External Clock Signal up to 1 MHz
Up to 600-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)
Available in the 10-Pin Microsmall Outline Package (MSOP)
Evaluation Module Available
APPLICATIONS
- Low-Power CPUs and DSPs
- Cellular Phones
- Organizers, PDAs, and Handheld PCs
- MP-3 Portable Audio Players
- Digital Cameras
- USB-Based DSL Modems and Other Network Interface Cards

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