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ADP1754ACPZ-0.75R7

更新时间： 2024-11-29 12:33:19
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
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20页 709K
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1.2 A, Low VIN, Low Dropout Linear Regulator

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ADP1754ACPZ-0.75R7 数据手册

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1.2 A, Low VIN, Low Dropout  
Linear Regulator  
Data Sheet  
ADP1754/ADP1755  
FEATURES  
TYPICAL APPLICATION CIRCUITS  
V
IN  
= 1.8V  
V
= 1.5V  
OUT  
Maximum output current: 1.2 A  
Input voltage range: 1.6 V to 3.6 V  
Low shutdown current: <2 µA  
Very low dropout voltage: 105 mV @ 1.2 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 (ADP1754)  
4.7µF  
4.7µF  
14  
VIN VIN VOUT VOUT  
13  
16  
15  
1 VIN  
2 VIN  
3 VIN  
4 EN  
VOUT 12  
ADP1754  
TOP VIEW  
(Not to Scale)  
VOUT 11  
VOUT 10  
SENSE 9  
100kΩ  
PG  
Adjustable output voltage option with soft start  
0.75 V to 3.3V (ADP1755)  
High PSRR  
PG GND SS NC  
7
8
5
6
65 dB @ 1 kHz  
10nF  
65 dB @ 10 kHz  
54 dB @ 100 kHz  
Figure 1. ADP1754 with Fixed Output Voltage, 1.5 V  
23 μV rms at 0.75 V output  
V
= 1.8V  
V
= 0.5V(1 + R1/R2)  
IN  
OUT  
Stable with small 4.7 µF ceramic output capacitor  
Excellent load and line transient response  
Current-limit and thermal overload protection  
Power-good indicator  
Logic-controlled enable  
Reverse current protection  
4.7µF  
4.7µF  
14  
VIN VIN VOUT VOUT  
13  
16  
15  
1 VIN  
2 VIN  
3 VIN  
4 EN  
VOUT 12  
ADP1755  
TOP VIEW  
(Not to Scale)  
VOUT 11  
VOUT 10  
100kΩ  
R1  
APPLICATIONS  
PG  
ADJ  
PG GND SS NC  
9
Server computers  
Memory components  
R2  
7
8
5
6
Telecommunications equipment  
Network equipment  
10nF  
DSP/FPGA/microprocessor supplies  
Instrumentation equipment/data acquisition systems  
Figure 2. ADP1755 with Adjustable Output Voltage, 0.75 V to 3.3 V  
GENERAL DESCRIPTION  
voltages that range from 0.75 V to 3.3 V via an external divider.  
The ADP1754/ADP1755 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 ADP1754/ADP1755 are low dropout (LDO) CMOS linear  
regulators that operate from 1.6 V to 3.6 V and provide up to  
1.2 A of output current. These low VIN/VOUT LDOs are ideal for  
regulation 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 ADP1754/  
ADP1755 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 ADP1754/ADP1755 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 applications that  
require up to 1.2 A of output current in a small, low profile  
footprint.  
The ADP1754 is available in seven fixed output voltage options.  
The ADP1755 is the adjustable version, which allows output  
Rev. F  
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.  
Tel: 781.329.4700 ©2008–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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