TPS62698 - 800mA、3MHz 高效降压转换器。3.0V 固定输出电压。

TPS62698是TI德州仪器公司的一款转换器（集成开关）产品，TPS62698是800mA、3MHz 高效降压转换器。3.0V 固定输出电压。，本站介绍了TPS62698的封装应用图解、特点和优点、功能等，并给出了与TPS62698相关的TI元器件型号供参考。

TPS62698 - 800mA、3MHz 高效降压转换器。3.0V 固定输出电压。 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-mA load current, and allows the use of low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. Different fixed output voltage versions are available in the range from 2.2 V up to 3.3 V.

The TPS62693 operates at a regulated 3-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 21 µA (typical) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

产品特性

95% Efficiency at 3MHz Operation
21 µA Quiescent Current
3 MHz Regulated Frequency Operation
Spread Spectrum, PWM Frequency Dithering
High Duty-Cycle Operation
±2% Total DC Voltage Accuracy
Load and Line Transient
Excellent AC Load Regulation
Low Ripple Light-Load PFM Mode
≥40 dB VIN PSRR (1 kHz to 10 kHz)
Internal Soft Start, 350-μs Start-Up Time
Integrated Active Power-Down Sequencing (Optional)
Current Overload and Thermal Shutdown Protection
Three Surface-Mount External Components Required (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors)
Complete Sub 1-mm Component Profile Solution
Total Solution Size <12 mm2 (CSP)
Available in a 6-Pin NanoFree (CSP)

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