Datasheet > FAN5182_08

FAN5182_08

更新时间： 2024-01-31 09:16:39

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
19页	780K
描述
Adjustable Output, 1-, 2-, or 3-Phase Synchronous Buck Controller

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FAN5182_08 数据手册

March 2008

FAN5182 — Adjustable Output, 1-, 2-, or 3-Phase

Synchronous Buck Controller

Features

Description

The FAN5182 is

highly efficient, multiphase,

Selectable 1-, 2-, or 3-Phase Operation at up to

1MHz per Phase

synchronous buck switching regulator controller

optimized for converting a 12V main supply into a high-

current, low-voltage supply for use in point-of-load

Accuracy: 1%

(POL) applications. It uses

multi-loop PWM

Externally Adjustable 0.8V to 5V Output from a

12V Supply

architecture to drive the logic-level outputs at a

programmable switching frequency that can be

optimized for regulator size and efficiency. The phase

relationship of the output signals can be programmed to

provide 1-, 2-, or 3-phase operation, allowing for

construction of up to three complementary, interleaved

buck switching stages.

Logic-Level PWM Outputs for Interface to External

High-Power Drivers

Active Current Balancing Between all Phases

Built-in Power-Good / Crowbar Functions

Programmable Over-Current Protection with

Adjustable Latch-Off Delay

The FAN5182 provides accurate and reliable over-

current protection and adjustable current limiting.

The FAN5182 is specified over the commercial

temperature range of 0°C to +85°C and is available in a

20-lead Quarter-Size Outline Package (QSOP).

Applications

Auxiliary Supplies

DDR Memory Supplies

Point-of-Load Supplies

Ordering Information

Part Number

Temperature Range

Package

Packing Method Quantity per Reel

FAN5182QSCX_NA3E229

0°C to 85°C

QSOP-20L

Tape and Reel

2500

All packages are lead free per JEDEC: J-STD-020B standard.

FAN5182 • Rev. 1.1.3

www.fairchildsemi.com

12 3 4 5 6 7...19

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