Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TC1313-1G0EUN Datasheet(PDF) 19 Page - Microchip Technology

Part No. TC1313-1G0EUN
Description  500 mA Synchronous Buck Regulator, 300 mA LDO
Download  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1313-1G0EUN Datasheet(HTML) 19 Page - Microchip Technology

Back Button TC1313-1G0EUN Datasheet HTML 15Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 16Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 17Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 18Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 19Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 20Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 21Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 22Page - Microchip Technology TC1313-1G0EUN Datasheet HTML 23Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 19 / 32 page
background image
© 2009 Microchip Technology Inc.
DS21974B-page 19
TC1313
5.0
APPLICATION CIRCUITS/
ISSUES
5.1
Typical Applications
The TC1313 500 mA buck regulator + 300 mA LDO
operates over a wide input-voltage range (2.7V to 5.5V)
and is ideal for single-cell Li-Ion battery-powered
applications, USB-powered applications, three-cell
NiMH or NiCd applications and 3V to 5V regulated
input applications. The 10-pin MSOP and 3x3 DFN
packages provide a small footprint with minimal exter-
nal components.
5.2
Fixed-Output Application
A typical VOUT1 fixed-output voltage application is
shown in “Typical Application Circuits”. A 4.7 µF
VIN1 ceramic input capacitor, 4.7 µF VOUT1 ceramic
capacitor, 1.0 µF ceramic VOUT2 capacitor and 4.7 µH
inductor make up the entire external component
solution for this dual-output application. No external
dividers or compensation components are necessary.
For this application, the input-voltage range is 2.7V to
4.2V, VOUT1 = 1.5V at 500 mA, while VOUT2 =2.5V at
300 mA.
5.3
Adjustable-Output Application
A typical VOUT1 adjustable-output application is also
shown in “Typical Application Circuits”. For this
application, the buck regulator output voltage is adjust-
able by using two external resistors as a voltage
divider. For adjustable-output voltages, it is recom-
mended that the top resistor divider value be 200 kΩ.
The bottom resistor divider can be calculated using the
following formula:
EQUATION 5-1:
Example:
For adjustable output applications, an additional R-C
compensation is necessary for the buck regulator
control loop stability. Recommended values are:
An additional VIN2 capacitor can be added to reduce
high-frequency noise on the LDO input-voltage pin
(VIN2). This additional capacitor (1 µF) is not necessary
for typical applications.
5.4
Input and Output Capacitor
Selection
As with all buck-derived dc-dc switching regulators, the
input current is pulled from the source in pulses. This
places a burden on the TC1313 input filter capacitor. In
most
applications,
a
minimum
of
4.7 µF
is
recommended on VIN1 (buck regulator input-voltage
pin). In applications that have high source impedance,
or have long leads (10 inches) connecting to the input
source, additional capacitance should be used. The
capacitor type can be electrolytic (aluminum, tantalum,
POSCAP, OSCON) or ceramic. For most portable
electronic
applications,
ceramic
capacitors
are
preferred due to their small size and low cost.
For applications that require very low noise on the LDO
output, an additional capacitor (typically 1 µF) can be
added to the VIN2 pin (LDO input voltage pin).
Low ESR electrolytic or ceramic can be used for the
buck regulator output capacitor. Again, ceramic is
recommended because of its physical attributes and
cost. For most applications, a 4.7 µF is recommended.
Refer to Table 5-1 for recommended values. Larger
capacitors (up to 22 µF) can be used. There are some
advantages in load step performance when using
larger value capacitors. Ceramic materials, X7R and
X5R, have low temperature coefficients and are well
within the acceptable ESR range required.
TABLE 5-1:
TC1313 RECOMMENDED
CAPACITOR VALUES
RTOP =200 kΩ
VOUT1 =2.1V
VFB =0.8V
RBOT =200 kΩ x (0.8V/(2.1V – 0.8V))
RBOT =123 kΩ (Standard Value = 121 kΩ)
RCOMP =4.99 kΩ
CCOMP =33 pF
R
BOT
R
TOP
V
FB
V
OUT1
V
FB
--------------------------------
⎝⎠
⎛⎞
×
=
C (VIN1)C (VIN2)COUT1
COUT2
Min
4.7 µF
none
4.7 µF
1 µF
Max
none
none
22 µF
10 µF


Similar Part No. - TC1313-1G0EUN

ManufacturerPart No.DatasheetDescription
Microchip Technology
Microchip Technology
TC1313-AA0EMF MICROCHIP-TC1313-AA0EMF Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
TC1313-AA0EMFTR MICROCHIP-TC1313-AA0EMFTR Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
TC1313-AA0EUN MICROCHIP-TC1313-AA0EUN Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
TC1313-AA0EUNTR MICROCHIP-TC1313-AA0EUNTR Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
TC1313-AA1EMF MICROCHIP-TC1313-AA1EMF Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
More results

Similar Description - TC1313-1G0EUN

ManufacturerPart No.DatasheetDescription
Microchip Technology
Microchip Technology
TC1313 MICROCHIP-TC1313 Datasheet
542Kb / 28P
   500 mA Synchronous Buck Regulator, 300 mA LDO
2005
TC1303A MICROCHIP-TC1303A_08 Datasheet
791Kb / 38P
   500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output
2008
TC1303A MICROCHIP-TC1303A Datasheet
635Kb / 36P
   500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output
2005
TC1303B MICROCHIP-TC1303B Datasheet
601Kb / 30P
   500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output
2005
MCP1601 MICROCHIP-MCP1601 Datasheet
683Kb / 22P
   500 mA Synchronous BUCK Regulator
2003
MCP1601 MICROCHIP-MCP1601_13 Datasheet
511Kb / 24P
   500 mA Synchronous BUCK Regulator
11/29/12
MCP1603 MICROCHIP-MCP1603 Datasheet
774Kb / 26P
   2.0 MHz, 500 mA Synchronous Buck Regulator
2007
MCP1603 MICROCHIP-MCP1603_12 Datasheet
796Kb / 34P
   2.0 MHz, 500 mA Synchronous Buck Regulator
2007-2012 11/29/11
ON Semiconductor
ON Semiconductor
CAT6218 ONSEMI-CAT6218 Datasheet
166Kb / 9P
   300 mA CMOS LDO Regulator
December, 2009 ??Rev. 4
CAT6218 ONSEMI-CAT6218_11 Datasheet
158Kb / 9P
   300 mA CMOS LDO Regulator
January, 2011 ??Rev. 5
More results


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32 


Datasheet Download

Go To PDF Page


Link URL



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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz