Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

LM3248 Datenblatt(PDF) 3 Page - Texas Instruments

Click here to check the latest version.
Teilenummer LM3248
Bauteilbeschribung  LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter
Download  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3248 Datenblatt(HTML) 3 Page - Texas Instruments

  LM3248 Datasheet HTML 1Page - Texas Instruments LM3248 Datasheet HTML 2Page - Texas Instruments LM3248 Datasheet HTML 3Page - Texas Instruments LM3248 Datasheet HTML 4Page - Texas Instruments LM3248 Datasheet HTML 5Page - Texas Instruments LM3248 Datasheet HTML 6Page - Texas Instruments LM3248 Datasheet HTML 7Page - Texas Instruments LM3248 Datasheet HTML 8Page - Texas Instruments LM3248 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 31 page
background image
LM3248
www.ti.com
SNVSA01A – JULY 2013 – REVISED SEPTEMBER 2013
Pin Descriptions
Pin #
Name
I/O
Description
A1
VDD_BOOST
-
Power supply voltage input for Boost Analog blocks. Connected to VBATT supply.
A2
PVIN_BOOST
-
Power supply voltage input for Boost Bypass FET.
A3
A4
Boost converter output. When Boost and Buck are active, OUT_BOOST must be externally
connected to PVIN_BUCK. A 10 µF capacitor must be placed between this node and GND.
OUT_BOOST
O
Internally connected to BUCK voltage input and feedback to inverting input of Boost error
A5
amplifier.
Digital input. A Low-to-High transition wakes up the boost converter and positions it to a high
B1
BOOST_GATE
I
level in preparation for a possible VCON change.
B2
SGND_BOOST
-
Analog Ground for the Boost Analog blocks.
B3
Boost converter switch node. When Boost and Buck are active, SW_BOOST is typically
B4
SW_BOOST
I/O
connected to VBATT supply through external power inductor.
B5
C1
MODE
I
Digital input. Low = 3G/4G (PWM/PFM) operation; High = 2G (PWM only) operation.
Power supply voltage input for Buck Analog PWM blocks. Internally connected to PVIN_BUCK
C2
VDD1_BUCK
when used with Boost. If Buck-only mode is used then must be directly connected to VBATT
supply.
C3
SGND_BUCK
-
Analog Ground for the Buck Analog Blocks.
C4
PGND
-
Power Ground for output FETs.
C5
Input. Chip enable. Setting ENABLE = High biases up the Buck and initiates VCON regulation
D1
ENABLE
I
by the Buck.
D2
VCON
I
Analog voltage control input which controls Buck output voltage.
D3
NC
-
No connect; leave this pin floating.
D4
SW_BUCK
O
Buck converter switch node for external filter inductor connection.
D5
E1
ATB1
-
Test pin. Connect to SGND or System Ground.
Feedback input to inverting input of error amplifier. Connect Buck output voltage directly to this
E2
FB_BUCK
-
node.
E3
DGND
-
Ground for Boost, Buck, and RFFE digital blocks.
E4
Power supply input for Buck PFET and ACB FET. A 10 µF capacitor must be placed between
PVIN_BUCK
-
this node and PGND. Must be externally connected to OUT_BOOST.
E5
F1
ATB2
-
Test pin. Connect to SGND or System Ground.
Power supply voltage input for Buck Analog PWM blocks. Internally connected to PVIN_BUCK
F2
VDD2_BUCK
-
when used with Boost.
F3
BGND
-
Ground for ACB bypass circuit.
F4
Active Current assist and Bypass output. Connected to the Buck converter output filter
ACB
-
capacitor.
F5
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Copyright © 2013, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: LM3248


Ähnliche Teilenummer - LM3248

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Texas Instruments
LM3248 TI1-LM3248 Datasheet
1Mb / 31P
[Old version datasheet]   LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter
REVISED SEPTEMBER 2013
LM3248TMENOPB TI1-LM3248TMENOPB Datasheet
1Mb / 31P
[Old version datasheet]   LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter
REVISED SEPTEMBER 2013
LM3248TMXNOPB TI1-LM3248TMXNOPB Datasheet
1Mb / 31P
[Old version datasheet]   LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter
REVISED SEPTEMBER 2013
More results

Ähnliche Beschreibung - LM3248

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Texas Instruments
LM3248 TI1-LM3248 Datasheet
1Mb / 31P
[Old version datasheet]   LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter
REVISED SEPTEMBER 2013
logo
Linear Technology
LTC3112 LINER-LTC3112_15 Datasheet
683Kb / 32P
   15V, 2.5A Synchronous Buck-Boost DC/DC Converter
logo
SiGe Semiconductor, Inc...
AATIAN28 SIGE-AATIAN28 Datasheet
130Kb / 6P
   1MHz 2.5A Buck DC/DC Converter
logo
STMicroelectronics
STBB1XX STMICROELECTRONICS-STBB1XX Datasheet
1Mb / 20P
   Buck-boost DC-DC converter
February 2009 Rev 1
logo
Murata Manufacturing Co...
LXDC2SCAAB-352 MURATA-LXDC2SCAAB-352 Datasheet
1Mb / 23P
   Buck-Boost DC-DC converter
logo
STMicroelectronics
STBB1-AXX STMICROELECTRONICS-STBB1-AXX Datasheet
1Mb / 24P
   Buck-boost DC-DC converter
October 2014 Rev 4
logo
Anachip Corp
AP1503 ANACHIP-AP1503 Datasheet
151Kb / 5P
   300Khz, 2.5A PWM Buck DC/DC Converter
logo
List of Unclassifed Man...
TD1507 ETC1-TD1507 Datasheet
381Kb / 11P
   2.5A 150KHZ PWM Buck DC/DC Converter
logo
Diodes Incorporated
ZXLD1322 DIODES-ZXLD1322 Datasheet
279Kb / 17P
   BUCK/BOOST MODE DC-DC CONVERTER
AL8811 DIODES-AL8811 Datasheet
496Kb / 11P
   Boost/Buck/Inverting DC-DC CONVERTER
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


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
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