Datasheet > LTM4650A

LTM4650A

更新时间： 2024-02-04 16:14:31

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
34页	695K
描述
25A DC/DC Step-Down Î¼Module Regulator

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中文翻译

获取价格

数据手册

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LTM4650A 数据手册

LTM4645

25A DC/DC Step-Down

µModule Regulator

FeaTures

DescripTion

TheLTM^®4645isa25Aoutputswitchingmodestep-down

DC/DC µModule^®(power module) regulator. Included in

the package are the switching controller, power FETs, in-

ductor and all supporting components. Operating over an

input voltage range of 4.7V to 15V, the LTM4645 supports

an output voltage range of 0.6V to 1.8V, set by a single

external resistor. Only a few input and output capacitors

are needed.

4.7V to 15V Input Voltage Range

0.6V to 1.8V Output Voltage Range

25A DC Output Current

1.2ꢀTotalDCOutputVoltageError(–40°Cto125°C)

HighReliabilityN+1PhaseRedundancySupported

InternalorExternalControlLoopCompensation

Differential Remote Sense Amplifier for Precision

Regulation

Current Mode Control/Fast Transient Response

Its high efficiency design delivers about 86% efficiency

from 12V input to 1.0V output with 25A continuous load

current. High switching frequency and a current-mode

architecture enable a very fast transient response to line

and load changes without sacrificing stability. The device

supports frequency synchronization, programmable

multiphase operation, N+1 phase redundancy, and output

voltage tracking for supply rail sequencing.

Multiphase Current Sharing Up to 150A

Built-In Temperature Monitoring

Selectable Pulse-Skipping, Burst Mode^®Operation

Soft-Start/Voltage Tracking

Frequency Synchronization

Output Overvoltage Protection

Output Overcurrent Foldback Protection

9mm × 15mm × 3.51mm BGA Package

Fault protection features include overvoltage and overcur-

rent protection. The power module is offered in a space

saving 9mm × 15mm × 3.51mm BGA package. The

LTM4645 is available with SnPb (BGA) or RoHS compli-

ant terminal finish.

applicaTions

Telecom, Networking and Industrial Equipment

Point of Load Regulation

L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode, µModule, LTpowerCAD

and PolyPhase are registered trademarks of Analog Devices, Inc. All other trademarks are the

property of their respective owners.

Typical applicaTion

Efficiency vs Output Current

at 1V Output

12V_IN, 1V_OUT, 25A DC/DC µModule Regulator

100

4.7µF

1µF

6.3V

2.2Ω

DRV

INTV

6V TO 15V

22µF

25V

×2

HIZB

FREQ

LTM4645

OUT

25A

43.2k

47pF

COMPa

COMPb

OSNS

–

100µF

6.3V

×4

TRACK/SS

OSNS

90.9k

5V INPUT

12V INPUT

0.1µF

SGND GND

4645 TA01a

PINS NOT USED IN THIS CIRCUIT:

LOAD CURRENT (A)

CLKOUT, MODE/PLLIN, PGOOD,

–

4645 TA01b

PHASMD, PWM, RUN, SW, TEMP , TEMP

4645f

For more information www.linear.com/LTM4645

12 3 4 5 6 7...34

中文翻译

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与LTM4650A相关器件

型号	品牌	获取价格	描述	数据表
LTM4650A-1	Linear	获取价格	Dual 25A or Single 50A DC/DC Î¼Module Regulat
LTM4651	Linear	获取价格	EN55022B Compliant 58V, 4A Step-Down DC/DC Î¼
LTM4651	ADI	获取价格	符合 EN55022B 规格的 58V、24W、负输出 DC/DC μModule 稳压器
LTM4651IY	Linear	获取价格	LTM4651 - EN55022B Compliant 58V, 24W Inverting-Output DC/DC µModule Regulator; P
LTM4651IY#PBF	Linear	获取价格	LTM4651 - EN55022B Compliant 58V, 24W Inverting-Output DC/DC µModule Regulator; P
LTM4653	Linear	获取价格	EN55022B Compliant 58V, 4A Step-Down DC/DC Î¼
LTM4653	ADI	获取价格	符合 EN55022B 标准的 58V 4A 降压直流/直流 μModule 稳压器
LTM4655	ADI	获取价格	EN55022B Compliant 40V, Dual 4A or Single 8A
LTM4655IY	ADI	获取价格	EN55022B Compliant 40V, Dual 4A or Single 8A
LTM4655MPY	ADI	获取价格	EN55022B Compliant 40V, Dual 4A or Single 8A

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