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SC1218STRT

更新时间： 2024-11-19 04:05:35

品牌	Logo	应用领域
商升特 - SEMTECH		驱动器
页数	文件大小	规格书
12页	396K
描述
High Speed Synchronous MOSFET Driver

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数据手册

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SC1218STRT 数据手册

SC1218

High Speed

Synchronous MOSFET Driver

POWER MANAGEMENT

Features

Description

The SC1218 is a high speed, robust, dual output driver to Advanced Digital Timing to Filter Out Very Narrow PWM

drive high-side and low-side N-MOSFETs in synchronous

buck converters. Combined with Semtech’s multi-phase

PWM controller SC2649, one can build high performance,

versatile voltage regulators for next generation micropro-

cessors.

Pulses

+12V Gate Drive Voltage

Integrated Bootstrap Diode

High Peak Drive Current

Adaptive Non-overlapping Gate Drives Provide Shoot-

through Protection

Support Dynamic VID operation

Ultra-low Propagation Delay

Floating Top Gate Drive

Crowbar Function for Over Voltage Protection

High Frequency (up to 2 MHz) Operation Allows Use of

Small Inductors and Low Cost Ceramic Capacitors

SC1218 is built upon a CMOS technology which provides

enough voltage capacity to handle computer applications.

In addition, the advanced timing circuitry is adopted to

filter out very narrow PWM pulses at the input of the driver.

The latched UVLO and enhanced adaptive shoot-through

protection further enhance the robustness of the SC1218.

With integrated bootstrap diode, the SC1218 is offered in Under Voltage Lockout

both SOIC-8 package and MLPQ-8 3x3mm package. These

features further reduce the thermal stress and BOM cost.

Low Quiescent Current

Enable Function for Both Gate OFF Shut Down

Lead-free Part and Fully WEEE and RoHS Compliant

Applications

Intel Next Generation Processor Power Supplies

AMD Athlon^TMand AMD-K8^TMProcessor Power

Supplies

High Current Low Voltage DC-DC Converters

Typical Application Circuit

VIN

Cbst

Mtop

Cin

1uF

BST

Lout

Rdrn

VOUT

PWM

DRN

PGND

(optional)

Rvin

2R2

Mbot

VIN

Cout

SC1218

Cvin

1uF

Revision: October 14, 2005

www.semtech.com

12 3 4 5 6 7...12

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