LM21215

更新时间： 2024-11-24 11:07:55

品牌	Logo	应用领域
德州仪器 - TI		开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数	文件大小	规格书
33页	1166K
描述
具有可调频率的 2.95V 至 5.5V、15A 电压模式同步降压稳压器

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LM21215 数据手册

LM21215

www.ti.com

SNVS625E –FEBRUARY 2011–REVISED MARCH 2013

15A High Efficiency Point of Load Synchronous Buck Regulator

Check for Samples: LM21215

FEATURES

APPLICATIONS

•

Integrated 7.0 mΩ High Side and 4.3 mΩ Low

Side FET Switches

•

Broadband, Networking and Wireless

Communications

•

Adjustable Current Limit

High-Performance FPGAs, ASICs and

Microprocessors

Adjustable Output Voltage From 0.6V to V_IN

(100% Duty Cycle Capable), ±1% Reference

Simple to Design, High Efficiency Point of

Load Regulation From a 5V or 3.3V Bus

•

Input Voltage Range 2.95V to 5.5V

500 kHz Fixed Switching Frequency

Startup Into Pre-Biased Loads

DESCRIPTION

The LM21215 is a monolithic synchronous point of

load buck regulator that is capable of delivering up to

15A of continuous output current while producing an

output voltage down to 0.6V with outstanding

efficiency. The device is optimized to work over an

input voltage range of 2.95V to 5.5V, making it suited

for a wide variety of low voltage systems. The voltage

mode control loop provides high noise immunity,

narrow duty cycle capability and can be compensated

to be stable with any type of output capacitance,

providing maximum flexibility and ease of use.

Output Voltage Tracking Capability

Wide Bandwidth Voltage Loop Error Amplifier

Adjustable Soft-Start With External Capacitor

Precision Enable Pin With Hysteresis

Integrated OVP, OTP, UVLO and Power-Good

Thermally Enhanced HTSSOP-20 Exposed Pad

Package

Simplified Application Circuit

HTSSOP-20

OUT

5,6,7

11-16

PVIN

OUT

AVIN

FB1

LM21215

optional

COMP

FB2

SS/

TRK

PGOOD

ILIM

PGND AGND

R_ILIM

8,9,10

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...33

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与LM21215相关器件

型号	品牌	获取价格	描述	数据表
LM212-155.52M	CONNOR-WINFIELD	获取价格	5.0x7.0mm Surface Mount LVDS Clock Oscillator Series
LM21215A	TI	获取价格	LM21215A-1 15A High Efficiency Synchronous Buck Regulator with Frequency Synchronization
LM21215AMH-1/NOPB	TI	获取价格	具有频率同步功能的 2.95-5.5V、15A、电压模式同步降压稳压器 \| PWP \| 2
LM21215AMHE-1/NOPB	TI	获取价格	具有频率同步功能的 2.95-5.5V、15A、电压模式同步降压稳压器 \| PWP \| 2
LM21215AMHX-1/NOPB	TI	获取价格	具有频率同步功能的 2.95-5.5V、15A、电压模式同步降压稳压器 \| PWP \| 2
LM21215MH/NOPB	TI	获取价格	15A High Efficiency Point of Load Synchronous Buck Regulator
LM21215MHE/NOPB	TI	获取价格	15A High Efficiency Point of Load Synchronous Buck Regulator
LM21215MHX	TI	获取价格	15A High Efficiency Point of Load Synchronous Buck Regulator
LM21215MHX/NOPB	TI	获取价格	15A High Efficiency Point of Load Synchronous Buck Regulator
LM212B	ETC	获取价格	Optoelectronic

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