Datasheet > LM2722MX/NOPB

LM2722MX/NOPB

更新时间： 2024-10-28 01:11:59

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德州仪器 - TI		/
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LM27222 High-Speed 4.5A Synchronous MOSFET Driver

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LM2722MX/NOPB 数据手册

LM27222

www.ti.com

SNVS306B –SEPTEMBER 2004–REVISED MARCH 2013

LM27222 High-Speed 4.5A Synchronous MOSFET Driver

Check for Samples: LM27222

FEATURES

DESCRIPTION

The LM27222 is a dual N-channel MOSFET driver

designed to drive MOSFETs in push-pull

configurations as typically used in synchronous buck

regulators. The LM27222 takes the PWM output from

a controller and provides the proper timing and drive

levels to the power stage MOSFETs. Adaptive shoot-

through protection prevents damaging and efficiency

reducing shoot-through currents, thus ensuring a

robust design capable of being used with nearly any

MOSFET. The adaptive shoot-through protection

circuitry also reduces the dead time down to as low

as 10ns, ensuring the highest operating efficiency.

The peak sourcing and sinking current for each driver

of the LM27222 is about 3A and 4.5Amps

respectively with a Vgs of 5V. System performance is

also enhanced by keeping propagation delays down

to 8ns. Efficiency is once again improved at all load

•

Adaptive Shoot-through Protection

10ns Dead Time

8ns Propagation Delay

30ns Minimum On-time

0.4Ω Pull-down and 0.9Ω Pull-up Drivers

4.5A Peak Driving Current

MOSFET Tolerant Design

5µA Quiescent Current

30V Maximum Input Voltage in Buck

Configuration

•

4V to 6.85V Operating Voltage

SOIC-8 and WSON Packages

APPLICATIONS

currents

supporting

synchronous,

non-

synchronous, and diode emulation modes through the

LEN pin. The minimum output pulse width realized at

the output of the MOSFETs is as low as 30ns. This

enables high operating frequencies at very high

conversion ratios in buck regulator designs. To

support low power states in notebook systems, the

LM27222 draws only 5µA from the 5V rail when the

IN and LEN inputs are low or floating.

•

High Current Buck And Boost Voltage

Converters

•

Fast Transient DC/DC Power Supplies

Single Ended Forward Output Rectification

CPU And GPU Core Voltage Regulators

Typical Application

VCC

4V to 6.85V

up to 30V

0.33 mF

(to controller)

OUT

LEN

LM27222

0.5V to

Vin - 0.5V

GND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...16

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与LM2722MX/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM27241	NSC	获取价格	Synchronous Buck Regulator Controller for Mobile Systems
LM27241MTC	NSC	获取价格	Synchronous Buck Regulator Controller for Mobile Systems
LM27241MTCX	NSC	获取价格	Synchronous Buck Regulator Controller for Mobile Systems
LM2724A	NSC	获取价格	High Speed 3A Synchronous MOSFET Driver
LM2724A	TI	获取价格	高速 3A 同步 MOSFET 驱动器
LM2724ALD	NSC	获取价格	High Speed 3A Synchronous MOSFET Driver
LM2724ALD/NOPB	TI	获取价格	3.2A HALF BRDG BASED MOSFET DRIVER, DSO8, LLP-8
LM2724ALDX	NSC	获取价格	High Speed 3A Synchronous MOSFET Driver
LM2724ALDX/NOPB	TI	获取价格	3.2A HALF BRDG BASED MOSFET DRIVER, DSO8, LLP-8
LM2724AM	NSC	获取价格	High Speed 3A Synchronous MOSFET Driver

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