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AAT2689IRN-AI-T1

更新时间： 2024-02-29 10:05:11

品牌	Logo	应用领域
ANALOGICTECH		转换器稳压器开关式稳压器或控制器电源电路开关式控制器集成电源管理电路
页数	文件大小	规格书
20页	3328K
描述
PMIC Solution for 12V Adapter Systems with 2-Output High Performance Step-Down Converters

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技术参数
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AAT2689IRN-AI-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.77
Is Samacsys：	N	Base Number Matches：	1

AAT2689IRN-AI-T1 数据手册

PRODUCT DATASHEET

AAT2689

SystemPower PMIC Solution for 12V Adapter Systems with 2-Output High Performance Step-Down Converters

General Description

Features

•

The AAT2689 provides two independently regulated DC

outputs, consisting of a high voltage step-down (Buck)

regulator and a low input voltage low dropout (LDO) regu-

lator. The PMIC is optimized for low cost 12V adapter

inputs, making the device the ideal system-on-a-chip

power solution for consumer communications equipment.

2-Output Step-Down Converters:

Channel 1 (Buck): V_IN1= 6V to 24V

▪

•

V_OUT1adjustable from 1.5V to 5.5V

I_OUT1up to 2.5A

High Switching Frequency

Voltage Mode Control

PWM Fixed Frequency for Low-Ripple

Channel 1 is a step-down (Buck) regulator with an input

voltage range of 6V to 24V providing up to 2500mA out-

put current. 490kHz fixed switching frequency allows

small L/C filtering components. Channel 1 utilizes volt-

age mode control configured for optimum performance

across the entire output voltage and load range.

Channel 2 (LDO): V_IN2= 2.7V to 5.5V

▪

•

I_OUT2up to 600mA

1V Dropout Voltage at 600mA

High Accuracy ±1.5%

•

Small Solution Size

System on a Chip

Ultra-small External L/C

Shutdown Current <35μA

▪

Channel 2 is a low-dropout (LDO) regulator providing up

to 600mA output current. The device provides extremely

low output noise, low quiescent current and excellent

transient response.

•

Independent Enable Pins

Adjustable Over-Current Protection

Over-Temperature Protection

Internal Soft Start

3x4mm 16-Pin TDFN Low Profile Thermally Enhanced

Package

The controller includes integrated cycle-by-cycle over-

current protection, soft-start and over-temperature dis-

able features. Independent input and enable pins pro-

vide maximum design flexibility.

•

-40°C to 85°C Temperature Range

The AAT2689 is available in the Pb-free 3x4mm 16-pin

TDFN package. The rated operating temperature range is

-40°C to 85°C.

Applications

•

DSL and Cable Modems

Notebook Computers

Satellite Settop Box

Wireless LAN Systems

Typical Application

V_OUT1

3.3V/2.5A

0.1µF

TDFN34-16

L1 4.7µH/5.3A

LX1

BST1

V_IN1

VL1

2.2µF

6.0V -24.0V

330pF

220nF

27.4k

C9,C11

2x22µF

IN1

RS1

499

AAT26^O8^S9¹

EN1

FB1

R1 24.3K

C2 470pF

V_IN2

220µF

25V

C15

1µF

25V

IN2 COMP1

6.04k

C3 56pF

2.2µF

EN2

OUT2

GND

V_OUT2

1.8V/600mA

C10

2.2µF

w w w . a n a l o g i c t e c h . c o m

2689.2008.06.1.0

12 3 4 5 6 7...20

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与AAT2689IRN-AI-T1相关器件

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AAT2713IVN-AA-T1	SKYWORKS	Switching Regulator,	获取价格
AAT2749IUR-ID-T1	SKYWORKS	Switching Regulator,	获取价格
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