Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

TDA3672AT Datasheet(PDF) 7 Page - NXP Semiconductors

Part # TDA3672AT
Description  Very low dropout voltage/quiescent current 3.0 V voltage regulator with enable
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA3672AT Datasheet(HTML) 7 Page - NXP Semiconductors

Back Button TDA3672AT Datasheet HTML 3Page - NXP Semiconductors TDA3672AT Datasheet HTML 4Page - NXP Semiconductors TDA3672AT Datasheet HTML 5Page - NXP Semiconductors TDA3672AT Datasheet HTML 6Page - NXP Semiconductors TDA3672AT Datasheet HTML 7Page - NXP Semiconductors TDA3672AT Datasheet HTML 8Page - NXP Semiconductors TDA3672AT Datasheet HTML 9Page - NXP Semiconductors TDA3672AT Datasheet HTML 10Page - NXP Semiconductors TDA3672AT Datasheet HTML 11Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 16 page
background image
2000 Apr 26
7
Philips Semiconductors
Preliminary specification
Very low dropout voltage/quiescent current
3.0 V voltage regulator with enable
TDA3672
EXAMPLE 1
The regulator is stabilized with an electrolytic capacitor of
68
µF (ESR = 0.5 Ω). At Tamb = −40 °C, the capacitor
value is decreased to 22
µF and the ESR is increased
to 3.5
Ω. The regulator will remain stable at a temperature
of Tamb = −40 °C.
EXAMPLE 2
The regulator is stabilized with an electrolytic capacitor of
10
µF (ESR = 3.3 Ω). At Tamb = −40 °C, the capacitor
value is decreased to 3
µF and the ESR is increased
to 20
Ω. The regulator will remain stable at a temperature
of Tamb = −40 °C.
EXAMPLE 3
The regulator is stabilized with a 100 nF MKT capacitor
connected to the output. Full stability is guaranteed when
the output current is larger then 200
µA.
Because the thermal influence on this capacitor value is
almost zero, the regulator will remain stable at a
temperature of Tamb = −40 °C.
EXAMPLE 4
The regulator is stabilized with a 100 nF capacitor in
parallel with a electrolytic capacitor of 10
µF connected to
the output.
The regulator is now stable under all conditions and
independent of:
• The ESR of the electrolytic capacitor
• The value of the electrolytic capacitor
• The output current.
Application circuits
The maximum output current of the regulator equals:
When Tamb =21 °C and VP = 14 V the maximum output
current equals 117 mA.
For successful operation of the IC (maximum output
current capability) special attention has to be given to the
copper area required as heatsink (connected to all
GND pins), the thermal capacity of the heatsink and its
ability to transfer heat to the external environment.
It is possible to reduce the total thermal resistance from
120 to 50 K/W.
Application circuit with backup function
Sometimes a backup function is needed to supply, for
example, a microcontroller for a short period of time when
the supply voltage spikes to 0 V (or even
−1 V).
This function can be easily built with the TDA3672 by using
a large output capacitor. When the supply voltage is 0 V
(or
−1 V), only a small current will flow into pin REG from
this output capacitor (a few
µA).
The application circuit is given in Fig.6.
I
REG max
()
150
T
amb
R
th j
a
()
V
P
V
REG
()
×
-----------------------------------------------------------
=
150
T
amb
100
V
P
3.0
()
×
------------------------------------------ mA
()
=
ndbook, halfpage
MBL124
VP
81
2, 3, 6, 7
C2
VI(EN)
5
TDA3672
C1
1
µF
VREG = 3.0 V
Fig.6 Application circuit with backup function.
VI(EN) =5V.
C1 is optional (to minimize supply noise only).
C2
≤ 4700 µF.


Similar Part No. - TDA3672AT

ManufacturerPart #DatasheetDescription
logo
NXP Semiconductors
TDA3673 PHILIPS-TDA3673 Datasheet
83Kb / 16P
   Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable
2000 Feb 01
TDA3673AT PHILIPS-TDA3673AT Datasheet
83Kb / 16P
   Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable
2000 Feb 01
TDA3673T PHILIPS-TDA3673T Datasheet
83Kb / 16P
   Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable
2000 Feb 01
TDA3674 PHILIPS-TDA3674 Datasheet
83Kb / 16P
   Low dropout voltage/quiescent current 5 V voltage regulator with enable
2000 Feb 01
TDA3674AT PHILIPS-TDA3674AT Datasheet
83Kb / 16P
   Low dropout voltage/quiescent current 5 V voltage regulator with enable
2000 Feb 01
More results

Similar Description - TDA3672AT

ManufacturerPart #DatasheetDescription
logo
NXP Semiconductors
TDA3662 PHILIPS-TDA3662 Datasheet
93Kb / 20P
   Very low dropout voltage/quiescent current 3.0 V voltage regulator
2000 Apr 26
TDA3673 PHILIPS-TDA3673 Datasheet
83Kb / 16P
   Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable
2000 Feb 01
TDA3674 PHILIPS-TDA3674 Datasheet
83Kb / 16P
   Low dropout voltage/quiescent current 5 V voltage regulator with enable
2000 Feb 01
TDA3675 PHILIPS-TDA3675 Datasheet
83Kb / 16P
   Low dropout voltage/quiescent current 8.5 V voltage regulator with enable
2000 Feb 01
TDA3676 PHILIPS-TDA3676 Datasheet
83Kb / 16P
   Low dropout voltage/quiescent current 10 V voltage regulator with enable
2000 Feb 01
TDA3664 PHILIPS-TDA3664 Datasheet
88Kb / 16P
   Very low dropout voltage/quiescent current 5 V voltage regulator
1999 Sep 01
TDA3665 PHILIPS-TDA3665 Datasheet
93Kb / 20P
   Very low dropout voltage/quiescent current 8.5 V voltage regulator
2000 Apr 25
TDA3666 PHILIPS-TDA3666 Datasheet
93Kb / 20P
   Very low dropout voltage/quiescent current 10 V voltage regulator
2000 Apr 26
TDA3664 NXP-TDA3664 Datasheet
98Kb / 16P
   Very low dropout voltage/quiescent current 5 V voltage regulator
Rev. 07-25 June 2007
TDA3663 NXP-TDA3663 Datasheet
91Kb / 15P
   Very low dropout voltage/quiescent current 3.3 V voltage regulator
Rev. 06-26 June 2007
More results


Html Pages

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


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
Family Site : ic2ic.com  |   icmetro.com