LTM4681集成电路（IC）的电源管理-专用规格书PDF中文资料

LTM4681属于集成电路（IC）的电源管理-专用。由亚德诺半导体技术有限公司制造生产的LTM4681电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。

DESCRIPTION

The LTM®4660 is a complete 300W output switching

mode hybrid-topology step-down DC/DC μModule®

micromodule) nonisolated bus converter. Its exposed

power inductor resides on the top of the package, providing

an intrinsic path for heat to dissipate up and out

of the module—away from one’s printed circuit board.

Included in the package are the switching controller IC,

power MOSFETs and supporting components. Only flying

charge-pump) capacitors, bulk input and output bypass

capacitors, and a few configuration passives are needed.

The LTM4660 features frequency synchronization,

Burst Mode® operation and output voltage soft-start and

tracking. An onboard temperature diode is available for

temperature monitoring. The LTM4660 protects against

short-circuit, overcurrent, and overtemperature faults. For

higher power applications, multiple LTM4660 modules

can be easily paralleled.

The LTM4660 is offered in a 16mm × 16mm × 10.34mm

BGA package with RoHS compliant terminal finish.

FEATURES

- Input Voltage Range: 30V to 60V (65V Abs. Max.)

- Wide Output Voltage: 4.5V to 18V (VOUT < VIN/2)

- 97.3 Peak Efficiency (12VOUT at 15A, 48VIN)

- ±1.5 Maximum Total DC Output Error

- Up to 300W Output Power

- Scalable: Parallel LTM4660s for Higher Power

- Fixed Frequency Current Mode Control

- Phase-Lockable External Synchronization from 200kHz to 1MHz

- Low Start-Up Inrush Current with Flying Capacitor

Voltage-Balancing Prior to DC/DC Switching Action

- Output Voltage Tracking with Soft-Start

- Short-Circuit Protection with Adjustable Retry-Timer

- Overcurrent and Overtemperature Protection

- Onboard Diode Temperature Monitor

- Optional External Reference Input

- Power Good and FAULT Indicators

- 16mm × 16mm × 10.34mm BGA Package

APPLICATIONS

- Telecom, Data Centers and Networking Equipment

- Industrial and Test Equipment