Datasheet > LTM4657

LTM4657

更新时间： 2022-05-14 22:18:33

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	1995K
描述
20VIN, 8A Step-Down DC/DC Î¼Module Regulator

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LTM4657 数据手册

LTM4657

20V_IN, 8A Step-Down DC/DC

µModule Regulator

FEATURES

DESCRIPTION

Complete Solution in <1cm (Single-Sided PCB) or

The LTM^®4657 is a complete 8A step-down switching

mode µModule (micromodule) regulator in a tiny 6.25mm

× 6.25mm × 3.87mm BGA package. Included in the pack-

age are the switching controller, power FETs, inductor and

support components. Operating over an input voltage

range of 3.1V to 20V, the LTM4657 supports an output

voltage range of 0.5V to 5.5V, set by a single external

resistor. Its high efficiency design delivers up to 8A con-

tinuous output current. Only bulk input and output capac-

itors are needed.

0.5cm (Dual-Sided PCB)

6.25mm × 6.25mm × 3.87mm BGA Package

Wide Input Voltage Range: 3.1V to 20V

0.5V to 5.5V Output Voltage

8A DC Output Current

1.5ꢀ Maximum Total DC Output Voltage Error

Over Line, Load and Temperature

Differential Remote Sensing Amp

Current Mode Control, Fast Transient Response

External Frequency Synchronization

Multiphase Parallel Current Sharing with

Multiple LTM4657s

The LTM4657 supports selectable discontinuous mode

operation and output voltage tracking for supply rail

sequencing. Its high switching frequency and current

mode control enable a very fast transient response to

line and load changes without sacrificing stability.

Output Voltage Tracking

Selectable Discontinuous Mode

Power Good Indicator

Overvoltage, Overcurrent and Overtemperature

Protection

Pin Compatible with LTM4626(12A) and LTM4638(15A)

Fault protection features incl0ude overvoltage, overcur-

rent and overtemperature protection.

The LTM4657 is available with SnPb or RoHS compliant

terminal finish.

APPLICATIONS

All registered trademarks and trademarks are the property of their respective owners.

Telecom, Datacom, Networking and

Industrial Equipment

Medical Diagnostic Equipment

Data Storage Rack Units and Cards

Test and Debug Systems

TYPICAL APPLICATION

Efficiency vs Load Current for V_OUT= 1V

8A, 1.0V Output DC/DC µModule^®Step-Down Regulator

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