Datasheet > 电源电路 > 线性稳压器IC> ADP1740ACPZ-1.1-R7

ADP1740ACPZ-1.1-R7

更新时间： 2024-10-30 12:27:59

品牌	Logo	应用领域
亚德诺 - ADI		线性稳压器IC 调节器电源电路输出元件 PC
页数	文件大小	规格书
20页	743K
描述
2 A, Low VIN, Low Dropout Linear Regulator

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2 A, Low V_IN, Low Dropout

Linear Regulator

Data Sheet

ADP1740/ADP1741

FEATURES

TYPICAL APPLICATION CIRCUITS

= 1.8V

= 1.5V

OUT

Maximum output current: 2 A

Input voltage range: 1.6 V to 3.6 V

Low shutdown current: 2 µA

Low dropout voltage: 160 mV @ 2 A load

Initial accuracy: 1%

Accuracy over line, load, and temperature: 2%

7 fixed output voltage options with soft start:

0.75 V to 2.5 V (ADP1740)

4.7µF

VIN VIN VOUT VOUT

1 VIN

2 VIN

3 VIN

4 EN

VOUT 12

ADP1740

TOP VIEW

(Not to Scale)

VOUT 11

VOUT 10

SENSE 9

100kΩ

Adjustable output voltage options with soft start:

0.75 V to 3.3 V (ADP1741)

High PSRR

PG GND SS NC

65 dB @ 1 kHz

10nF

65 dB @ 10 kHz

54 dB @ 100 kHz

23 μV rms at 0.75 V output

Stable with small 4.7 µF ceramic output capacitor

Excellent load and line transient response

Current-limit and thermal overload protection

Power-good indicator

Figure 1. ADP1740 with Fixed Output Voltage, 1.5 V

= 1.8V

= 0.5V(1 + R1/R2)

OUT

4.7µF

VIN VIN VOUT VOUT

1 VIN

2 VIN

3 VIN

4 EN

VOUT 12

Logic-controlled enable

Reverse current protection

ADP1741

TOP VIEW

(Not to Scale)

VOUT 11

VOUT 10

100kΩ

APPLICATIONS

ADJ

PG GND SS NC

Server computers

Memory components

Telecommunications equipment

Network equipment

10nF

DSP/FPGA/microprocessor supplies

Instrumentation equipment/data acquisition systems

Figure 2. ADP1741 with Adjustable Output Voltage, 0.75 V to 3.3 V

GENERAL DESCRIPTION

voltages ranging from 0.75 V to 3.3 V via an external divider.

The ADP1740/ADP1741 allow an external soft start capacitor

to be connected to program the startup. A digital power-good

output allows power system monitors to check the health of the

output voltage.

The ADP1740/ADP1741 are low dropout (LDO) CMOS linear

regulators that operate from 1.6 V to 3.6 V and provide up to 2 A

of output current. These low V_IN/V_OUTLDOs are ideal for regu-

lation of nanometer FPGA geometries operating from 2.5 V down

to 1.8 V I/O rails, and for powering core voltages down to 0.75 V.

Using an advanced, proprietary architecture, the ADP1740/

ADP1741 provide high power supply rejection ratio (PSRR) and

low noise, and achieve excellent line and load transient response

with only a small 4.7 µF ceramic output capacitor.

The ADP1740/ADP1741 are available in a 16-lead, 4 mm ×

4 mm LFCSP, making them not only very compact solutions,

but also providing excellent thermal performance for applica-

tions that require up to 2 A of output current in a small, low

profile footprint.

The ADP1740 is available in seven fixed output voltage options.

The ADP1741 is an adjustable version that allows output

Rev. E

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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ADP1740ACPZ-1.1-R7 替代型号

型号	品牌	替代类型	描述	数据表
ADP1754ACPZ-1.1-R7	ADI	类似代替	1.2 A, Low VIN, Low Dropout Linear Regulator
ADP1752ACPZ-1.1-R7	ADI	类似代替	0.8 A, Low VIN, Low Dropout Linear Regulator

与ADP1740ACPZ-1.1-R7相关器件

型号	品牌	获取价格	描述	数据表
ADP1740ACPZ-1.2-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-1.3-R7	ADI	获取价格	2 A, Low VIN Dropout, Linear Regulator
ADP1740ACPZ-1.5-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-1.8-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1740ACPZ-2.5-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1741	ADI	获取价格	2 A, Low Dropout, CMOS Linear Regulator
ADP1741ACPZ	ADI	获取价格	IC VREG 0.75 V-3 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.28 V DROPOUT, QCC16, 4 X 4 MM, ROH
ADP1741ACPZ-R7	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1741-EVALZ	ADI	获取价格	2 A, Low VIN, Low Dropout Linear Regulator
ADP1752	ADI	获取价格	0.8 A, Low VIN, Low Dropout Linear Regulator

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