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LP38852S-ADJ/NOPB PDF预览

LP38852S-ADJ/NOPB

更新时间： 2024-11-15 11:08:07
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德州仪器 - TI 电源电路线性稳压器IC
页数 文件大小 规格书
29页 1640K
描述
具有使能功能的 1.5A、低输入电压 (0.93V)、可调节超低压降稳压器 | KTW | 7 | -40 to 125

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LP38852S-ADJ/NOPB 数据手册

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LP38852  
www.ti.com  
SNVS482E –JANUARY 2007–REVISED APRIL 2013  
1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and  
Soft-Start  
Check for Samples: LP38852  
1
FEATURES  
DESCRIPTION  
The LP38852-ADJ is a high current, fast response  
regulator which can maintain output voltage  
regulation with extremely low input to output voltage  
drop. Fabricated on a CMOS process, the device  
operates from two input voltages: VBIAS provides  
voltage to drive the gate of the N-MOS power  
transistor, while VIN is the input voltage which  
supplies power to the load. The use of an external  
bias rail allows the part to operate from ultra low VIN  
voltages. Unlike bipolar regulators, the CMOS  
architecture consumes extremely low quiescent  
current at any output load current. The use of an N-  
MOS power transistor results in wide bandwidth, yet  
minimum external capacitance is required to maintain  
loop stability.  
2
•
Adjustable VOUT Range of 0.80V to 1.8V  
•
Wide VBIAS Supply Operating Range of 3.0V to  
5.5V  
•
•
Stable with 10µF Ceramic Capacitors  
Dropout Voltage of 130 mV (Typical) at 1.5A  
Load Current  
•
Precision Output Voltage across All Line and  
Load Conditions:  
–
–
–
±1.5% VADJ for TJ = 25°C  
±2.0% VADJ for 0°C ≤ TJ ≤ +125°C  
±3.0% VADJ for -40°C ≤ TJ ≤ +125°C  
•
•
•
Over-Temperature and Over-Current  
Protection  
The fast transient response of this device makes it  
suitable for use in powering DSP, Microcontroller  
Core voltages and Switch Mode Power Supply post  
regulators. The part is available in the TO-220 and  
DDPAK 7-pin packages.  
Available in 8 Lead SO PowerPAD, 7 Lead TO-  
220 and 7 Lead DDPAK Packages  
−40°C to +125°C Operating Junction  
Temperature Range  
Dropout Voltage: 130 mV (typical) at 1.5A load  
current.  
APPLICATIONS  
•
ASIC Power Supplies In:  
Low Ground Pin Current: 10 mA (typical) at 1.5A  
load current.  
–
Desktops, Notebooks, and Graphics Cards,  
Servers  
Soft-Start: Programmable Soft-Start time.  
–
Gaming Set Top Boxes, Printers and  
Copiers  
Precision ADJ Voltage: ±1.5% for TJ = 25°C, and  
±2.0% for 0°C ≤ TJ ≤ +125°C, across all line and load  
conditions  
•
•
•
Server Core and I/O Supplies  
DSP and FPGA Power Supplies  
SMPS Post-Regulator  
Typical Application Circuit  
LP38852-ADJ  
V
V
OUT  
IN  
IN  
OUT  
C
IN  
C
FF  
10 mF Ceramic  
V
BIAS  
BIAS  
R1  
R2  
C
BIAS  
C
OUT  
10 mF  
Ceramic  
1 mF  
ADJ  
V
EN  
EN  
SS  
GND  
C
SS  
GND  
GND  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2013, Texas Instruments Incorporated  
 
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LP38852S-ADJ/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP38852SX-ADJ/NOPB TI

类似代替

 具有使能功能的 1.5A、低输入电压 (0.93V)、可调节超低压降稳压器 | KTW |
LP38852SX-ADJ TI

类似代替

 1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Star
LP38852S-ADJ TI

类似代替

 1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Star

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 		1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Star
LP38852SX-ADJ/NOPB NSC

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 		IC VREG 0.8 V-1.8 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PSSO7, TO-263, 7 PI
LP38852SX-ADJ/NOPB TI

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 		具有使能功能的 1.5A、低输入电压 (0.93V)、可调节超低压降稳压器 | KTW |
LP38852T-ADJ NSC

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 		1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Star
LP38852T-ADJ TI

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 		1.5A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Star
LP38852T-ADJ/NOPB TI

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 		具有使能功能的 1.5A、低输入电压 (0.93V)、可调节超低压降稳压器 | NDZ |
LP38853 TI

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 		LP38853 3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Sof
LP38853 NSC

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 		3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start
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