Datasheet > ADM7171ACPZ-1.3-R7

ADM7171ACPZ-1.3-R7

更新时间： 2024-01-01 19:40:10

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管输出元件调节器
页数	文件大小	规格书
24页	1101K
描述
Fast transient response

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ADM7171ACPZ-1.3-R7 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	HVSON, SOLCC8,.11,20
针数：	8	Reach Compliance Code：	compliant
风险等级：	1.64	可调性：	FIXED
最大绝对输入电压：	7 V	最大输入电压：	6.5 V
最小输入电压：	2.3 V	JESD-30 代码：	S-PDSO-N8
JESD-609代码：	e3	长度：	3 mm
最大电网调整率：	0.00611%	最大负载调整率：	0.0052%
湿度敏感等级：	3	功能数量：	1
输出次数：	1	端子数量：	8
工作温度TJ-Max：	125 °C	工作温度TJ-Min：	-40 °C
最大输出电流 1：	1 A	最大输出电压 1：	1.3195 V
最小输出电压 1：	1.2805 V	标称输出电压 1：	1.3 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVSON
封装等效代码：	SOLCC8,.11,20	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	0.8 mm
表面贴装：	YES	技术：	CMOS
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	30	最大电压容差：	1.5%
宽度：	3 mm	Base Number Matches：	1

ADM7171ACPZ-1.3-R7 数据手册

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6.5 V, 1 A, Ultralow Noise, High PSRR,

Fast Transient Response CMOS LDO

ADM7171

Data Sheet

FEATURES

TYPICAL APPLICATION CIRCUIT

Input voltage range: 2.3 V to 6.5 V

Maximum load current: 1 A

Low noise: 5 µV rms independent of output voltage at

100 Hz to 100 kHz

ADM7171

= 5V

= 3.3V

OUT

VIN

VOUT

OUT

4.7µF

VIN

VOUT

4.7µF

SENSE

Fast transient response: 1.5 μs for 1 mA to 500 mA load step

60 dB PSRR at 100 kHz

1nF

OFF

GND

Low dropout voltage: 42 mV at 500 mA load, V_OUT= 3 V

Initial accuracy: −0.5% (minimum), +1% (maximum)

Accuracy over line, load, and temperature: 1.5%

Quiescent current, I_GND= 0.7 mA with no load

Low shutdown current: 0.25 μA at V_IN= 5 V

Stable with small 4.7 µF ceramic output capacitor

Adjustable and fixed output voltage options: 1.2 V to 5.0 V

Adjustable output from 1.2 V to V_IN− V_DO

Precision enable

Figure 1. ADM7171 with Fixed Output Voltage, 3.3 V

The ADM7171 regulator output noise is 5 μV rms independent

of the output voltage. The ADM7171 is available in an 8-lead,

3 mm × 3 mm LFCSP, making it not only a very compact solution,

but also providing excellent thermal performance for applications

requiring up to 1 A of output current in a small, low profile

footprint.

Adjustable soft start

8-lead, 3 mm × 3 mm LFCSP package

Supported by ADIsimPower tool

APPLICATIONS

Regulation to noise sensitive applications: ADC and DAC

circuits, precision amplifiers, PLLs/VCOs, and clocking ICs

Communications and infrastructure

Medical and healthcare

Industrial and instrumentation

GENERAL DESCRIPTION

The ADM7171 is a CMOS, low dropout linear regulator (LDO)

that operates from 2.3 V to 6.5 V and provides up to 1 A of output

current. This high output current LDO is ideal for regulation of

high performance analog and mixed signal circuits operating

from 6 V down to 1.2 V rails. Using an advanced proprietary

architecture, the device provides high power supply rejection and

low noise, and achieves excellent line and load transient response

with just a small 4.7 µF ceramic output capacitor. Load transient

response is typically 1.5 μs for a 1 mA to 500 mA load step.

CH1 200mA Ω

CH2 10mV

M400ns A CH3

T 0.40%

100mV

Figure 2. Transient Response (Trace 2), 1 mA to 500 mA Load Step in 400 ns (Trace 1)

Table 1. Related Devices

Device

Input Voltage

2.3 V to 6.5 V

Output Current

500 mA

Package

ADM7170

ADM7172

8-lead LFCSP

2 A

The ADM7171 is available in 17 fixed output voltage options.

The following voltages are available from stock: 1.3 V, 1.8 V,

2.5 V, 3.0 V, 3.3 V, 4.2 V, and 5.0 V. Additional voltages that are

available by special order are: 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.7 V,

2.75 V, 2.8 V, 2.85 V, 3.8 V, and 4.6 V. An adjustable version is

also available that allows output voltages that range from 1.2 V

to V_IN− V_DOwith an external feedback divider.

Inrush current can be controlled by adjusting the start-up time

via the soft start pin. The typical start-up time with a 1 nF soft

start capacitor is 1.0 ms.

Rev. C

Document Feedback

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

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

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

Trademarks andregisteredtrademarks are the property of their respective owners.

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

Technical Support

www.analog.com

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