Datasheet > LT3380

LT3380

更新时间： 2023-12-20 18:45:43

品牌	Logo	应用领域
亚德诺 - ADI		开关稳压器
页数	文件大小	规格书
30页	1543K
描述
集成4个降压开关和3个LDO线性稳压器（带 I2C）的多输出电源管理解决方案

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中文翻译

获取价格

数据手册

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LT3380 数据手册

LT3380

Multioutput Power Management Solution

with Four Buck Switching and Three LDO Linear

Regulators with I²C

FEATURES

DESCRIPTION

The LT^®3380 is a complete power management solution

for advanced portable application processor-based sys-

tems. The device contains four synchronous step-down

DC/DC converters for core, memory, I/O, and system on-

chip (SoC) rails and three 300mA LDO regulators for low

noise analog supplies. An I²C serial port may be used

to control regulator enables, power-down sequencing,

output voltage levels, dynamic voltage scaling, operating

modes, and status reporting.

Quad I C Adjustable High Efficiency Step-Down

DC/DC Converters: 2.5A, 2.5A, 1.5A, 1.5A

Three 300mA LDO Regulators (Two Adjustable)

Independent Enable Pin-Strap or I C Sequencing

Programmable Autonomous Power-Down Control

Warnings and Faults

IRQ Pin and IRQ Status Register

Power Good Pin and Status Register

150°C T Operation (LT3380H)

Dynamic Voltage Scaling

Selectable 2.25MHz or 1.12MHz Switching Frequency

12µA Standby Current

Regulator start-up is sequenced by connecting outputs to

enable pins in the desired order or via the I C port. The

LT3380 outputs may be sequenced off in one of four time

Side Wettable 40-Lead 6mm × 6mm QFN Package

AEC-Q100 Qualified for Automotive Applications

slots selected using I C command registers.

The device is available in a 40-lead 6mm × 6mm QFN with

wettable flanks for optical inspection.

APPLICATIONS

Automotive

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

Industrial

Communications

General Purpose Multichannel Power Supplies

TYPICAL APPLICATION

1µH

Start-Up Sequence

2.5A

SW1

2.7V TO 5.5V

1.7V TO V

IN_L1

PWR_ON

FB_B1

47µF

300mA

LDO1

5V/DIV

LDO1

LT3380

1µF

FB_L1

1µH

2.5A

SW2

LDO2

1V/DIV

FB_B2

47µF

BUCK1 AND BUCK2

BUCK3

1.7V TO V

IN_L2

300mA

LDO2

1.5A

SW3

1µF

FB_L2

BUCK4

1V/DIV

FB_B3

47µF

1.8V TO V

IN_L3

3380 TA01b

1ms/DIV

1.8V

300mA

1µH

LDO3

1.5A

SW4

1µF

FB_B4

47µF

1.6V TO 5.5V

I C

ENABLES

PWR_ON

IRQ

PGOOD

3380 TA01a

Rev. B

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For more information www.analog.com

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中文翻译

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与LT3380相关器件

型号	品牌	获取价格	描述	数据表
LT3383	ADI	获取价格	集成4个降压开关和3个LDO线性稳压器的多输出电源管理解决方案
LT338A	Linear	获取价格	5A Positive Adjustable Voltage Regulator
LT338AK	Linear	获取价格	5A Positive Adjustable Voltage Regulator
LT338AMK	Linear	获取价格	IC VREG 1.2 V-32 V ADJUSTABLE POSITIVE REGULATOR, MBFM4, METAL, TO-3, 8 PIN, Adjustable Po
LT338AP	Linear	获取价格	IC VREG 1.2 V-32 V ADJUSTABLE POSITIVE REGULATOR, MBFM2, PLASTIC, TO-3, 3 PIN, Adjustable
LT3407	Linear	获取价格	Dual Synchronous,400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
LT3407-2	Linear	获取价格	Dual Synchronous,400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
LT3407EDD-2	Linear	获取价格	IC 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, PLASTIC
LT3407EDD-2#PBF	Linear	获取价格	IC 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, LEAD FR
LT3407EDD-2#TR	Linear	获取价格	IC 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, PLASTIC

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