DataSheet8.cn


PDF ( 数据手册 , 数据表 ) TC1070

零件编号 TC1070
描述 CMOS LDOs
制造商 Microchip Technology
LOGO Microchip Technology LOGO 


1 Page

No Preview Available !

TC1070 数据手册, 描述, 功能
TC1070/TC1071/TC1187
50 mA, 100 mA and 150 mA Adjustable CMOS LDOs with Shutdown
Features:
• 50 µA Ground Current for Longer Battery Life
• Adjustable Output Voltage
• Very Low Dropout Voltage
• Choice of 50 mA (TC1070), 100 mA (TC1071)
and 150 mA (TC1187) Output
• Power-Saving Shutdown mode
• Overcurrent and Overtemperature Protection
• Space-Saving 5-Pin SOT-23 Package
• Pin Compatible with Bipolar Regulators
Applications:
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
VIN 1 VIN
VOUT 5
TC1070
TC1071
2
TC1187
GND
C1 +
1 µF
VOUT
R1
3
SHDN
4
ADJ
R2
Shutdown Control
(from Power Control Logic)
VOUT = VREF RR-----12- + 1
Description:
The TC1070, TC1071 and TC1187 devices are
adjustable LDOs designed to supersede a variety of
older (bipolar) voltage regulators. Total supply current
is typically 50 µA at full load (20 to 60 times lower than
in bipolar regulators).
The devices’ key features include ultra low-noise
operation, very low dropout voltage – typically 85 mV
(TC1070), 180 mV (TC1071) and 270 mV (TC1187) at
full load and fast response to step changes in load.
Supply current is reduced to 0.5 µA (maximum) when
the shutdown input is low. The devices incorporate both
overtemperature and overcurrent protection. Output
voltage is programmed with a simple resistor divider
from VOUT to ADJ to GND.
The TC1070, TC1071 and TC1187 devices are stable
with an output capacitor of only 1 µF and have a
maximum output current of 50 mA, 100 mA and
150 mA, respectively. For higher output versions
please see the TC1174 (IOUT = 300 mA) data sheet
(DS21363).
Package Type
5-Pin SOT-23
VOUT
ADJ
54
TC1070
TC1071
TC1187
1 23
VIN GND SHDN
2010 Microchip Technology Inc.
DS21353E-page 1







TC1070 pdf, 数据表
TC1070/TC1071/TC1187
3.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
TC1070/TC1071/TC1187
SOT-23
1
2
3
4
5
Symbol
Description
VIN
GND
SHDN
ADJ
VOUT
Unregulated supply input
Ground terminal
Shutdown control input
Output voltage adjust terminal
Regulated voltage output
3.1 Input Voltage Supply (VIN)
Connect unregulated input supply to the VIN pin. If
there is a large distance between the input supply and
the LDO regulator, some input capacitance is
necessary for proper operation. A 1 µF capacitor
connected from VIN to ground is recommended for
most applications.
3.2 Ground (GND)
Connect the unregulated input supply ground return to
GND. Also connect the negative side of the 1 µF typical
input decoupling capacitor close to GND and the
negative side of the output capacitor C1 to GND.
3.4 Output Voltage Adjust (ADJ)
Output voltage setting is programmed with a resistor
divider from VOUT to this input.
3.5 Regulated Voltage Output (VOUT)
Connect the output load to VOUT of the LDO. Also
connect the positive side of the LDO output capacitor
as close as possible to the VOUT pin.
3.3 Shutdown Control Input (SHDN)
The regulator is fully enabled when a logic high is
applied to this input. The regulator enters shutdown
when a logic low is applied to this input. During
shutdown, output voltage falls to zero and supply
current is reduced to 0.5 µA (maximum).
DS21353E-page 8
2010 Microchip Technology Inc.







TC1070 equivalent, schematic
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC32 logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified
logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance,
TSHARC, UniWinDriver, WiperLock and ZENA are
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2010, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-60932-685-2
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS21353E-page 16
2010 Microchip Technology Inc.










页数 17 页
下载[ TC1070.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
TC1070CMOS LDOsMicrochip Technology
Microchip Technology
TC107050mA ADJUSTABLE CMOS LDO WITH SHUTDOWNTelCom Semiconductor
TelCom Semiconductor
TC1071CMOS LDOsMicrochip
Microchip
TC107250mA CMOS LDO WITH SHUTDOWN / ERROR OUTPUT AND VREF BYPASSTelCom Semiconductor
TelCom Semiconductor

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap