Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LP38856 Datasheet(PDF) 1 Page - Texas Instruments

Part No. LP38856
Description  3A Fast-Response High-Accuracy LDO Linear Regulator with Enable
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo 

LP38856 Datasheet(HTML) 1 Page - Texas Instruments

 
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
EN
VEN
IN
BIAS
GND
OUT
VOUT
VIN
VBIAS
CIN
10 PF Ceramic
COUT
10 PF
Ceramic
CBIAS
1 PF
GND
GND
LP38856-x.x
LP38856
www.ti.com
SNVS336D – JUNE 2006 – REVISED OCTOBER 2011
3A Fast-Response High-Accuracy LDO Linear Regulator with Enable
Check for Samples: LP38856
1
FEATURES
DESCRIPTION
The
LP38856
is
a
high-current,
fast-response
2
Standard VOUT Values of 0.8V and 1.2V
regulator
which
can
maintain
output
voltage
Wide VBIAS Supply Operating Range of 3.0V to
regulation with an extremely low input to output
5.5V
voltage drop. Fabricated on a CMOS process, the
Stable with 10 µF Ceramic Capacitors
device operates from two input voltages: VBIAS
provides power for the internal bias and control
Dropout Voltage of 240 mV (Typical) at 3A
circuits, as well as drive for the gate of the N-MOS
Load Current
power transistor, while VIN supplies power to the load.
Precision Output Voltage Across all Line and
The use of an external bias rail allows the part to
Load Conditions:
operate from ultra low VIN voltages. Unlike bipolar
regulators,
the
CMOS
architecture
consumes
±1.0% for TJ = 25°C
extremely low quiescent current at any output load
±2.0% for 0°C
≤ TJ ≤ +125°C
current. The use of an N-MOS power transistor
±3.0% for -40°C
≤ TJ ≤ +125°C
results in wide bandwidth, yet minimum external
Over-Temperature and Over-Current
capacitance is required to maintain loop stability.
Protection
The fast transient response of this device makes it
Available in 5 Lead TO-220 and DDPAK/TO-263
suitable for use in powering DSP, Microcontroller
Packages
Core voltages and Switch Mode Power Supply post
regulators. The LP38856 is available in TO-220 and
Custom VOUT Values Between 0.8V and 1.2V
DDPAK/TO-263 5-Lead packages.
are Available
Dropout Voltage: 240 mV (typical) at 3A load
-40°C to +125°C Operating Temperature Range
current.
APPLICATIONS
Low Ground Pin Current: 10 mA (typical) at 3A load
current.
ASIC Power Supplies In:
Desktops, Notebooks, and Graphics Cards,
Shutdown Current: 1 µA (typical) IIN(GND) when EN
pin is low.
Servers
Gaming Set Top Boxes, Printers and
Precision Output Voltage: ±1.0% for TJ = 25°C and
Copiers
±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
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn