TPS62320中文資料可調(diào)節(jié)、500mA、3MHz 降壓轉(zhuǎn)換器，采用 QFN 或芯片級(jí)封裝數(shù)據(jù)手冊(cè)TI規(guī)格書

描述 Description

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, 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 or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers. The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 μA. The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).

特性 Features

? Up to 93% Efficiency at 3-MHz Operation
? 3-MHz Fixed Frequency Operation
? Complete 1-mm Component Profile Solution
? 35-ns Minimum On-Time
? Fixed and Adjustable Output Voltage
? 100% Duty Cycle for Lowest Dropout
? Integrated Active Power-Down Sequencing (TPS6232x only)
? APPLICATIONS
? WLAN and Bluetooth? Applications
? PDAs, Pocket PCs
? Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments. Bluetooth is a trademark of Bluetooth SIG, Inc. PowerPAD is a trademark of Texas Instruments.

簡介

TPS62320屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由TI制造生產(chǎn)的TPS62320穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會(huì)通過該元件。