Moteur de recherche de fiches techniques de composants électroniques
Selected language     French  ▼
Nom de la pièce
         Description


LM3370 Datasheet(Fiches technique) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numéro de pièce LM3370
Description  Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
Télécharger  23 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo 

 6 page
background image
Electrical Characteristics (Notes 2, 8, 10)Typical limits appearing in normal type apply for T
J = 25˚C. Limits
appearing in boldface type apply over the entire junction temperature range (T
A =TJ = −30˚C to +85˚C). Unless otherwise
noted, V
IN1 =VIN2 = 3.6V. (Continued)
Note 6: In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be
de-rated. Maximum ambient temperature (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX-OP = 125
oC), the maximum power
dissipation of the device in the application (PD-MAX), and the junction-to-ambient thermal resistance of the part/package in the application (θJA), as given by the
following equation: TA-MAX =TJ-MAX-OP –(θJA xPD-MAX).
Note 7: Junction-to-ambient thermal resistance (
θJA) is taken from a thermal modeling result, performed under the conditions and guidelines set forth in the JEDEC
standard JESD51-7. The test board is a 4-layer FR-4 board measuring 102 mm x 76 mm x 1.6 mm witha2x1 array of thermal vias. Thickness of copper layers
are 2/1/1/2oz.
Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power dissipation exists, special care
must be paid to thermal dissipation issues in board design.
The value of
θJA of this product can vary significantly, depending on PCB material, layout, and environmental conditions. In applications where high maximum power
dissipation exists (high VIN, high IOUT), special care must be paid to thermal dissipation issues. For more information on these topics, please refer to Application Note
1187: Leadless Leadframe Package (LLP) and the Power Efficiency and Power Dissipation section of this datasheet.
Note 8: Min. and Max are guaranteed by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested during
production with TJ = 25˚C. All hot and cold limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying
statistical process control.
Note 9: Guaranteed by design.
Note 10: Input voltage range for all voltage options is 2.7V to 5.5V. The voltage range recommended for the specified output voltages:
VIN = 2.7V to 5.5V for 1V ≤ VOUT ≤ 1.7V and for VOUT = 1.8V or greater, VIN =VOUT +1V
or
VIN,MIN =ILOAD *(RDSON_PFET +RDCR_INDUCTOR)+VOUT
Note 11: Test condition: for VOUT less than 2.5V, VIN = 3.6V; for VOUT greater than or equal to 2.5V, VIN =VOUT +1V
www.national.com
6




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 


Datasheet Download



Numéro de composants électroniques

Numéro de pièceDescription des composantsHtml ViewFabricant
MB38818-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down 1 2 3 4 5 MoreFujitsu Component Limited.
MB38836-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down 1 2 3 4 5 MoreFujitsu Component Limited.
ST777LOW VOLTAGE INPUT 3-3.3V/5V/ADJUSTABLE OUTPUT DC-DC CONVERTER WITH SYNCHRONOUS RECTIFIER 1 2 3 4 5 MoreSTMicroelectronics
SI9175High Performance Step-Down DC-DC Converter With Adjustable Output Voltage 1 2 3 4 5 MoreVishay Siliconix
XC9510Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator In Series plus Voltage Detector 1 2 3 4 5 MoreTorex Semiconductor
MB38276-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down 1 2 3 4 5 MoreFujitsu Component Limited.
LM5642High Voltage Dual Synchronous Buck Converter with Oscillator Synchronization 1 2 3 4 5 MoreNational Semiconductor (TI)
XC9509Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel plus Voltage Detector 1 2 3 4 5 MoreTorex Semiconductor
SI9176High Performance Step-Down DC-DC Converter With Adjustable Output Voltage 1 2 3 4 5 MoreVishay Siliconix
PCM1715Dual Voltage Output CMOS Delta-Sigma DIGITAL-TO-ANALOG CONVERTER With On-Chip Digital Filter 1 2 3 4 5 MoreBurr-Brown (TI)

Lien URL

AllDATASHEET vous a-t-il été utile ?   [ DONATE ]  

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Favoris   |   Echange de liens   |   Fabricants
All Rights Reserved © Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , 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