MP2905 Datasheet: Step-Down Converter





MP2905 Step-Down Converter Datasheet

Part Number MP2905
Description Step-Down Converter
Manufacture MPS
Total Page 17 Pages
PDF Download Download MP2905 Datasheet PDF

Features: The Future of Analog IC Technology MP29 05 3V-28V Input, Hysteretic Synchronous Step-Down Controller DESCRIPTION The MP2905 is a hysteretic voltage-mode con trol, synchronous PWM buck controller. The output voltage can be regulated fro m 0.6V to 0.9*VIN. It achieves high out put current over a wide input supply ra nge from 3V-28V. MP2905 integrates an i nternal LDO regulator that makes the co ntroller function at a wide input suppl y. Hysteretic voltage-mode control prov ides fast transient response without ad ditional loop compensation. An adjustab le soft-start prevents inrush current a t turn-on. The device senses high-side switch voltage drop for hiccup current limit and short current protection. The frequency is adjustable from 200kHz to 500kHz. The MP2905 is available in 10- pin MSOP package, provides a very compa ct system solution with minimal relianc e on external components. FEATURES • Wide 3V to 28V Operating Input Range Output Adjustable from 0.6V to 0.9*Vin • Switching frequency fro.

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The Future of Analog IC Technology
MP2905
3V-28V Input, Hysteretic
Synchronous Step-Down Controller
DESCRIPTION
The MP2905 is a hysteretic voltage-mode control,
synchronous PWM buck controller. The output
voltage can be regulated from 0.6V to 0.9*VIN. It
achieves high output current over a wide input
supply range from 3V-28V.
MP2905 integrates an internal LDO regulator that
makes the controller function at a wide input
supply.
Hysteretic voltage-mode control provides fast
transient response without additional loop
compensation.
An adjustable soft-start prevents inrush current at
turn-on. The device senses high-side switch
voltage drop for hiccup current limit and short
current protection. The frequency is adjustable
from 200kHz to 500kHz.
The MP2905 is available in 10-pin MSOP
package, provides a very compact system
solution with minimal reliance on external
components.
FEATURES
Wide 3V to 28V Operating Input Range
Output Adjustable from 0.6V to 0.9*Vin
Switching frequency from 200kHz to 500kHz
Programmable Soft-Start
Hiccup current limit
Lossless peak current sensing
MSOP-10 package
APPLICATIONS
Motherboard Power Supplies
AGP and PCI-Express Power Supplies
Graphic-Card Power Supplies
Set-Top Boxes
Point-of-Load Power Supplies
TYPICAL APPLICATION
MP2905 Rev. 1.0
9/18/2015
www.monolithicpower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2015. All Rights Reserved.
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