ADP5034AREZ-1-R7 datasheet, PDF

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ADP5034AREZ-1-R7: DescriptionBuck Regulator with LDO 2.3V to 5.5V 28-Pin TSSOP EP T/R; File Size770KB，28 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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ADP5034AREZ-1-R7 Overview

Buck Regulator with LDO 2.3V to 5.5V 28-Pin TSSOP EP T/R

ADP5034AREZ-1-R7 Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Function	Buck Regulator with LDO
Switching Frequency (kHz)	3000(Typ)
Input Voltage (V)	2.3 to 5.5
Minimum Operating Supply Voltage (V)	2.3
Maximum Operating Supply Voltage (V)	5.5
Maximum Supply Current (mA)	0.175(Typ)
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	125
Packaging	Tape and Reel
Maximum Storage Temperature (°C)	150
Minimum Storage Temperature (°C)	-65
Standard Package Name	SOP
Supplier Package	TSSOP EP
Pin Count	28
Mounting	Surface Mount
Package Height	1
Package Length	9.7
Package Width	4.4
PCB changed	28
Lead Shape	Gull-wing

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内½两个300

mA LDO的双通道、

3 MHz、1200 mA降压稳压器

ADP5034

产品特性

主要输入电压范围：2.3

V至5.5 V

两个1200

mA降压稳压器和两个300 mA LDO

24引脚4 mm × 4 mm LFCSP或28引脚TSSOP封装

稳压器精度：

±1.8%

工厂编程设½或外部可调的VOUTx

3 MHz降压工½，支持强制PWM模式和自动PWM/PSM模式

BUCK1/BUCK2：输出电压范围0.8 V至3.8 V

LDO1/LDO2：输出电压范围0.8 V至5.2 V

LDO1/LDO2：输入电源电压范围1.7 V至5.5 V

LDO1/LDO2：高PSRR、½输出噪声

时，如果负½½高于预定义阈值，则降压稳压器以PWM模

式工½。½负½½电流降至预定义阈值以下时，稳压器以省

电模式(PSM)工½，以便改善½负½½效率。

表1. 该系列产品型号

型号

ADP5023

ADP5024

ADP5034

ADP5037

ADP5033

最大电流

800 mA,

300 mA

1.2 A,

2个降压、1个LDO

300 mA

1.2 A,

2个降压、2个LDO

300 mA

800 mA,

2个降压、2个LDO

300 mA

2个降压、2个LDO， 800 mA,

300 mA

带2个EN引脚

通道

2个降压、1个LDO

封装

LFCSP (CP-24-10)

LFCSP (CP-24-10),

TSSOP (RE-28-1)

LFCSP (CP-24-10)

WLCSP (CB-16-8)

应用

适用于处理器、ASIC、FPGA和RF芯片组的电源

便携式仪器仪表和医疗设备

空间受限设备

为降½输入电容要求，两个降压器以错相工½。ADP5034

LDO的½静态电流、½压差和½输入电压范围可延长便携

式设备的电池½用时间。在频率高达10

kHz时，ADP5034

LDO½保持60 dB以上的电源抑制性½，而所需的电压裕量

则很½。

ADP5034中的稳压器通过专用½½引脚激活。可调版本的

默认输出电压可以在外部设½，固定电压版本的默认输出

电压则可在工厂编程设½；预设值范围广泛。

概述

ADP5034集成两个高性½降压稳压器和两个½压差稳压器

(LDO)，采用24引脚4 mm × 4 mm LFCSP或28引脚TSSOP封装。

降压稳压器的高开关频率支持小型多层外部器件，并½电

路板空间降至最小。½MODE引脚设½为高电平时，降压

稳压器以强制PWM模式工½。½MODE引脚设½为½电平

典型应用电路

AVIN

0.1µF

2.3V TO

5.5V

VIN1

4.7µF

OFF

EN1

BUCK1

HOUSEKEEPING

VOUT1

SW1

FB1

PGND1

MODE

VIN2

4.7µF

EN2

EN3

1.7V TO

5.5V

VIN3

1µF

OFF

EN4

VIN4

1µF

EN4

VOUT4

LDO2

(DIGITAL)

FB4

1µF

09703-001

L1 1µH

PWM

10µF

OUT1

1200mA

MODE

BUCK2

EN2

EN3

LDO1

(ANALOG)

VOUT2

SW2

FB2

PGND2

VOUT3

FB3

L2 1µH

PSM/PWM

OUT2

1200mA

10µF

OUT3

300mA

1µF

OUT4

300mA

ADP5034

AGND

图1.

Rev. E

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Speci cations subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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

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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

ADP5034

目½

特性.....................................................................................................

应用.....................................................................................................

概述.....................................................................................................

应用电路

............................................................................................ 1

修订历史

............................................................................................ 3

技术规格

............................................................................................ 4

通用规格.......................................................................................

BUCK1和BUCK2技术规格....................................................... 5

LDO1和LDO2技术规格 ............................................................ 5

推荐规格：输入和输出电容....................................................

绝对最大额定值...............................................................................

热阻

............................................................................................... 7

ESD警告........................................................................................ 7

引脚配½和功½描述

...................................................................... 8

典型性½参数

................................................................................... 9

工½原理

.......................................................................................... 16

电源管理单元

............................................................................ 16

BUCK1和BUCK2 ...................................................................... 18

LDO1和LDO2............................................................................ 19

应用信息

.......................................................................................... 20

降压器外部元件选择...............................................................

LDO外部元件选择 ................................................................... 22

功耗与散热考虑.............................................................................

降压稳压器功耗........................................................................

结温

............................................................................................. 24

PCB布局指南 .................................................................................. 25

典型应用原理图.............................................................................

物料清单.....................................................................................

外½尺寸

.......................................................................................... 27

订购指南.....................................................................................

Rev. E | Page 2 of 28

ADP5034

修订历史

2013年5月 —

修订版D至修订版E

增加表1；重新排序

......................................................................... 1

更改图1

............................................................................................... 1

更改NC引脚描述

.............................................................................. 8

更改图49

........................................................................................... 19

更改图51

........................................................................................... 21

更改图53和图54

.............................................................................. 26

2013年1月 —

修订版C至修订版D

更改“订购指南”

.............................................................................. 28

2012年11月 —

修订版B至修订版C

更改“订购指南”

.............................................................................. 28

2012年7月—修订版A至修订版B

增加28引脚TSSOP封装(通篇)........................................................

更改表2的输出电压精度参数，增加TSSOP开关导通电阻规

格，更改电压反馈最大值和最小值，更改有源下拉电阻条

件

.......................................................................................................... 5

更改表3的输出电压精度参数和电压反馈最小值与最大值；

更改表

4 .............................................................................................. 6

表6增加TSSOP封装的热阻值

........................................................ 7

增加图3，表7增加TSSOP引脚

...................................................... 8

更改图7、图8和图9

......................................................................... 9

更改图10

........................................................................................... 10

更改图18标题

.................................................................................. 11

更改图31和图32

.............................................................................. 13

更改图35和图39的标题

................................................................. 14

更改欠压闭锁部分

......................................................................... 17

更改表8

............................................................................................. 20

更改表9和11.....................................................................................

更改公式9及其后的段½...............................................................

“PCB布局布线指南”部分增加UG-349 ....................................... 25

更改表12

........................................................................................... 26

更新“外½尺寸”...............................................................................

更改“订购指南”...............................................................................

2011年10月—修订版0至修订版A

更改特性部分

.................................................................................... 1

更改概述部分

.................................................................................... 1

更改图1

............................................................................................... 1

更改表1“½UVLO输入电压下降”参数的“符号”栏

................... 3

更改表2“输出电压精度”参数的“测试条件/注释”栏.................

更改表2“电压调整率”参数的符号栏

........................................... 4

更改表2“负½½调整率”参数的符号栏

........................................... 4

更改表2，调换导通电阻参数的RPFET和RNFET符号，更改

典型值栏和最大值栏

....................................................................... 4

更改表3“输出精度”参数的“测试条件/注释”栏

......................... 4

更改表3“电压调整率”参数的“符号”栏和“测试条件/注释”

栏

.......................................................................................................... 4

更改表3的“压差”参数，增加“压差”参数的规格

...................... 5

更改表3的尾注3

................................................................................ 5

更改表4“BUCK1、BUCK2输出电容”参数的最小值栏............

更改表4的尾注1

................................................................................ 5

更改表5的绝对最大额定值

............................................................ 6

更改表7的引脚功½描述.................................................................

更改TPC部分.....................................................................................

移动“功耗与散热考虑”部分.........................................................

更改公式5的参数说明...................................................................

更改公式6.........................................................................................

更改欠压闭锁部分

......................................................................... 16

更改图46

........................................................................................... 16

更改图47

........................................................................................... 17

更改LDO1/LDO2部分

................................................................... 18

更改输出电容部分和表8...............................................................

更改VRIPPLE公式、表9和图50

.................................................. 20

更改“输入和输出电容特性”部分

................................................ 21

更改公式3.........................................................................................

更改“结温”部分...............................................................................

更改“LDO稳压器功耗”部分.........................................................

更改图52和图53

.............................................................................. 25

移动“物料清单”部分......................................................................

更改“订购指南”

.............................................................................. 26

2011年6月—修订版0：初始版

Rev. E | Page 3 of 28

ADP5034AREZ-1-R7 Related Products

	ADP5034AREZ-1-R7	ADP5034-2-EVALZ	ADP5034AREZ-1
Description	Buck Regulator with LDO 2.3V to 5.5V 28-Pin TSSOP EP T/R	2.3 A SWITCHING REGULATOR, 3500 kHz SWITCHING FREQ-MAX, QCC24	Buck Regulator with LDO 2.3V to 5.5V 28-Pin TSSOP EP Tube
EU restricts the use of certain hazardous substances	Compliant	-	Compliant
ECCN (US)	EAR99	-	EAR99
Part Status	Active	-	Active
HTS	8542.39.00.01	-	8542.39.00.01
Function	Buck Regulator with LDO	-	Buck Regulator with LDO
Switching Frequency (kHz)	3000(Typ)	-	3000(Typ)
Input Voltage (V)	2.3 to 5.5	-	2.3 to 5.5
Minimum Operating Supply Voltage (V)	2.3	-	2.3
Maximum Operating Supply Voltage (V)	5.5	-	5.5
Maximum Supply Current (mA)	0.175(Typ)	-	0.175(Typ)
Minimum Operating Temperature (°C)	-40	-	-40
Maximum Operating Temperature (°C)	125	-	125
Packaging	Tape and Reel	-	Tube
Maximum Storage Temperature (°C)	150	-	150
Minimum Storage Temperature (°C)	-65	-	-65
Standard Package Name	SOP	-	SOP
Supplier Package	TSSOP EP	-	TSSOP EP
Pin Count	28	-	28
Mounting	Surface Mount	-	Surface Mount
Package Height	1	-	1
Package Length	9.7	-	9.7
Package Width	4.4	-	4.4
PCB changed	28	-	28
Lead Shape	Gull-wing	-	Gull-wing

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