LTC3605集成電路（IC）的穩(wěn)壓器-DC-DC開關穩(wěn)壓器規(guī)格書PDF中文資料

LTC3605屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關穩(wěn)壓器。由亞德諾半導體技術有限公司制造生產的LTC3605穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器DC-DC 開關穩(wěn)壓器 PMIC（電源管理集成電路）產品族中的產品是元器件級設備，用于需要穩(wěn)定 DC 輸入電壓和/或將其轉換為不同幅度的輸出電壓的應用。這些器件與稱為“控制器”PMIC 的類似產品的區(qū)別在于集成了主開關元件，設備提供的電力會通過該元件。

DESCRIPTION

The LT?7200S is a quad-channel, high efficiency

monolithic synchronous buck regulator, capable of

sinking/sourcing 5A to the load per channel. Its multichannel

flexibility is ideal for powering complex

systems with the compact layout. The operating

supply voltage range is from 2.9V to 18V, making it

suitable for various supply applications from a 3.3V,

5V to 12V supply.

The operating frequency is programmable from

400kHz to 3MHz with an external resistor, or externally

synchronized for switching noise sensitive

applications. The unique “phase lockable, controlled

on-time, constant frequency, current mode”

architecture, is ideal for high frequency, high stepdown

applications while demanding fast transient

responses. The high frequency capability allows

smaller surface mount inductors and capacitors. The

MODE/SYNC pin selects low noise Forced Continuous

Mode (FCM) or high efficiency Discontinuous Mode

(DCM). The PHMODE pin allows to run out-of-phase

among 4 channels, which lessens the required input

and output capacitors. The LT7200S uses second

generation Silent Switcher technology with

integrated bypass capacitors to deliver a highly

efficient solution at high frequencies with excellent

EMI performance.

FEATURES

? Silent Switcher 2 Architecture:

? Ultralow EMI

? Eliminated PCB Layout Sensitivity

? Internal Bypass Caps Reduce Radiated EMI

? Wide SVIN Range: 2.9V to 18V; PVIN: 1.5V to 18V

? Wide VOUT Range: 0.5V to 0.9VIN

? Output Current: ±5A/ Channel; up to ±20A

? Accurate Reference: 0.5V ± 0.8 Over Temp

? High Efficiency: Up to 96

? 12ns Min on-time: True 12V to 1V at 2MHz

? Programmable Multi-phase, Synchronizable

Frequency: 400kHz to 3MHz

? Current Mode: Excellent Line and Load

Transient Response

? User Selectable Discontinuous Mode? (DCM) or

Forced Continuous Mode (FCM) Operation

? Flexible Individual Internal Compensation for

Ease of Use; External for Fast Transient

? Accurate Individual 1.2V EN/ Run Pin Threshold

? Individual Output Tracking and Soft-Start

? Individual Power Good Status Output

? Low Profile 5mm x 6mm 48-Lead LQFN Package

APPLICATIONS

? Distributed Power Systems, Server Power

? Point of Load Supply for ASIC, FPGA, Etc.