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PM6681A Fiches technique (PDF) - STMicroelectronics

PM6681A Datasheet PDF - STMicroelectronics
No de pièce PM6681A
Télécharger  PM6681A Télécharger

Taille du fichier   474.53 Kbytes
Page   12 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description Dual step-down controller with adjustable LDO

PM6681A Datasheet (PDF)

Go To PDF Page Télécharger Fiches technique
PM6681A Datasheet PDF - STMicroelectronics

No de pièce PM6681A
Télécharger  PM6681A Click to download

Taille du fichier   474.53 Kbytes
Page   12 Pages
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description Dual step-down controller with adjustable LDO

PM6681A Fiches technique (HTML) - STMicroelectronics

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PM6681A Détails du produit

Description
PM6681A is a dual step-down controller specifically designed to provide extremely high efficiency conversion, with lossless current sensing technique. The constant on-time architecture assures fast load transient response and the embedded voltage feed-forward provides nearly constant switching frequency operation. An embedded integrator control loop compensates the DC voltage error due to the output ripple. Pulse skipping technique increases efficiency at very light load. Moreover a minimum switching frequency of 33 kHz is selectable to avoid audio noise issues. The PM6681A provides a selectable switching frequency, allowing three different values of switching frequencies for the two switching sections. The output voltages OUT1 and OUT2 can be adjusted from 0.9 V to 5 V and from 0.9 V to 3.3 V respectively. The device provides also 2 LDOs, 5 V fixed and 0.9 V - 3.3 V adjustable.

Features
■ 6 V to 36 V input voltage range
■ Adjustable output voltages
■ 0.9 - 3.3 V LDO adjustable delivers 100 mA peak current
■ 5 V LDO delivers 100 mA peak current
■ 1.237 V ±1 % reference voltage available
■ No RSENSE current sensing using low side MOSFETs RDS(on)
■ Negative current limit
■ Soft-start internally fixed at 2 ms
■ Soft output discharge
■ Latched UVP
■ Not-latched OVP
■ Selectable pulse skipping at light loads
■ Selectable minimum frequency (33 kHz) in pulse skip mode
■ 5 mW maximum quiescent power
■ Independent Power Good signals
■ Output voltage ripple compensation

Applications
■ Embedded computer system
■ FPGA system power
■ Industrial applications on 24 V
■ High performance and high density DC-DC modules
■ Notebook computer




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À propos de STMicroelectronics


Stmicroelectronics est un fabricant multinational d'électronique et de semi-conducteurs basé à Genève, en Suisse.

La société propose une large gamme de produits, notamment des microcontrôleurs, des capteurs, des amplificateurs de puissance et des circuits intégrés pour diverses applications sur les marchés automobiles, industriels et consommateurs.

Fondée en 1987, Stmicroelectronics a des opérations dans plus de 100 pays et est l'une des plus grandes sociétés de semi-conducteurs au monde.

*Ces informations sont fournies à titre informatif uniquement, nous ne serons pas responsables des pertes ou dommages causés par les informations ci-dessus.




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