TLV62566DBVT屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由美國(guó)德州儀器公司制造生產(chǎn)的TLV62566DBVT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。

1 Features

1? 2.7-V to 5.5-V Input Voltage Range

? 1.5-MHz Typical Switching Frequency

? Output Current up to 1.5 A (Max)

? Adaptive On-Time Current Control

? Power Save Mode for Light Load Efficiency

? 50-μA Operating Quiescent Current

? Up to 95% Efficiency

? Over Current Protection

? 95% Maximum Duty Cycle

? Excellent AC and Transient Load Response

? Power Good Output, TLV62566

? Internal Soft Startup of 250 μs (Typ)

? Adjustable Output Voltage

? Thermal Shutdown Protection

? Available in SOT-23 5-Pin Package

2 Applications

? Portable Devices

? DSL Modems

? Hard Disk Drivers

? Set Top Box

? Tablet

3 Description

The TLV62565/6 devices are synchronous step-down

converters optimized for small solution size and high

efficiency. The devices integrate switches capable of

delivering an output current up to 1.5 A.

The devices are based on an adaptive on time with

valley current mode control scheme. Typical

operating frequency is 1.5 MHz at medium to heavy

loads. The devices are optimized to achieve very low

output voltage ripple even with small external

components and feature an excellent load transient

response.

During light load, the TLV62565/6 automatically enter

into Power Save Mode at the lowest quiescent

current (50 μA typ) to maintain high efficiency over

the entire load current range. In shutdown, the

current consumption is reduced to less than 1 μA.

The TLV62565/6 provide an adjustable output voltage

via an external resistor divider. The output voltage

start-up ramp is controlled by an internal soft start,

typically 250 μs. Power sequencing is possible by

configuring the Enable (TLV62565) and Power Good

(TLV62566) pins. Other features like over current

protection and over temperature protection are builtin.

The TLV62565/6 devices are available in a SOT-

23 5-pin package.