Microchip LX7178 Manual

Microchip Ikke kategoriseret LX7178

Læs gratis den danske manual til Microchip LX7178 (24 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 14 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 7.5 anmeldelser. Har du et spørgsmål om Microchip LX7178, eller vil du spørge andre brugere om produktet?

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Copyright © Page 12014 Microsemi
Rev. 1.1, 8/7/2014 Analog Mixed Signal Group
One Enterprise Aliso Viejo, CA 92656 USA - - -4113, 949- -6100, fax 949- -4996 , 1 800 713 380 215
LX7178
3V to 5.5V, 5A Constant Frequency Hysterec
Synchronous Buck Regulator with I2C
Producon Datasheet
Descripon
The LX71 is a digitally controlled step-down regulator 78
IC with an integrated 40mΩ high-side P-channel
MOSFET and a 14mΩ low-side N-channel MOSFET. It
features Microsemi’s proprietary constant-frequency
hysterec control engine for near-instantaneous
correction to line/load transients. It does not require
high-ESR output capacitors and incorporates energy-
saving “PSM Power Save or Pulse Skip Mode) at light ” (
loads, to extend battery life in mobile applicaons.
The LX7178 has Ian 2C serial interface port for output
voltage margining and monitoring if required (it can
also operate in default mode). In addion it includes
robust fault monitoring funcons.
The LX71 will operate from 3V to 5.5V, and is 78
available in 0.8V xed output voltage opon (no voltage
divider is necessary). The output voltage can also be
adjusted with an external voltage divider up to 3.3V.
Features
Constant Frequency Hysterec Control
Extremely Fast Line/Load Transient Response
I2C for Output Adjustment (3.4Mbps)
1.875 MHz Switching Frequency
Extremely Low-RDSON MOSFETS
Input Voltage Rail 3.3V to 5V
Greater than 5A Output Current
I2C Selectable Power Save Mode for Light-Load
Eciency
UVLO, OVP, OCP
0°C to +85°C Ambient Temperature
Available in WLCSP-20 (0.4mm pitch)
RoHS Compliant
Applicaons
High Performance HDD
Notebooks/Netbooks/Tablets/Slates
Figure 1: Typical 5V to 0.8V applicaon with I 2C implemented
Copyright © Page 22014 Microsemi
Rev. 1.1, 8/7/2014 Analog Mixed Signal Group
One Enterprise Aliso Viejo, CA 92656 USA - - -4113, 949- -6100, fax 949- -4996 , 1 800 713 380 215
LX7178
3V to 5.5V, 5A Constant Frequency Hysterec
Synchronous Buck Regulator with I2C
Producon Datasheet
Other Applicaon Diagrams
Figure 2: Typical 5V to 0. applicaon without I96V 2C implemented
Figure 3: Typical 5V to 0. applicaon with I96V 2C implemented

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: LX7178

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