DataSheetWiki


LTM4618 fiches techniques PDF

Holtek Semiconductor - 6A DC/DC uModule Regulator

Numéro de référence LTM4618
Description 6A DC/DC uModule Regulator
Fabricant Holtek Semiconductor 
Logo Holtek Semiconductor 





1 Page

No Preview Available !





LTM4618 fiche technique
www.DataSheet4U.com
LTM4618
6A DC/DC µModule
Regulator with Tracking and
Frequency Synchronization
FEATURES
n Complete Standalone Power Supply
n Wide Input Voltage Range: 4.5V to 26.5V
n 6A DC Typical, 8A Peak Output Current
n 0.8V to 5V Output
n Output Voltage Tracking
n ±1.75% Maximum Total DC Error
n Current Mode Control/Fast Transient Response
n Phase-Lockable Fixed Frequency 250kHz to 780kHz
n On-Board Frequency Synchronization
n Selectable Burst Mode® Operation
n Power Good Voltage Indicator
n Output Overvoltage Protection
n Output Current Foldback Limiting
n 9mm × 15mm × 4.32mm LGA Package
APPLICATIONS
n Telecom and Networking Equipment
n Servers
n Storage Cards
n ATCA Cards
n Industrial Equipment
n Point of Load Regulation
n Medical Systems
DESCRIPTION
The LTM®4618 is a complete 6A output switching mode
DC/DC power supply in a 9mm × 15mm × 4.32mm LGA
package. Included in the package are the switching con-
troller, power FETs, inductor and all support components.
Operating over an input voltage range of 4.5V to 26.5V,
the LTM4618 supports an output voltage range of 0.8V
to 5V set by a single external resistor. Its high efficiency
design delivers 6A continuous current (8A peak). Only a
few input and output capacitors are needed.
High switching frequency and a current mode architecture
enable a very fast transient response to line and load
changes without sacrificing stability. The device supports
frequency synchronization and output voltage tracking for
supply rail sequencing. Burst Mode operation or pulse-
skipping mode can be selected for light load operations.
Fault protection features include overvoltage protection,
overcurrent protection and foldback current limit for
short-circuit protection.
The LTM4618 is Pb-free and RoHS compliant.
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and μModule are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
TYPICAL APPLICATION
2.5V/6A DC/DC Power μModule® with 6V to 26.5V Input
VIN
6V to 26.5V
CIN
0.1μF
MODE/PLLIN INTVCC EXTVCC
VIN FREQ
COMP
TK/SS
LTM4618
VOUT
VFB
RUN
SGND
PGOOD
PGND
4618 TA01
28.7k
VOUT
2.5V/6A
COUT
Efficiency and Power Loss vs Load Current
95 3.0
EFFICIENCY
90
2.5
2.0
85
1.5
80
1.0
POWER LOSS
75 0.5
12VIN TO 2.5VOUT
24VIN TO 2.5VOUT
70 0
0123456
LOAD CURRENT (A)
4618 TA01b
4618f
1

PagesPages 24
Télécharger [ LTM4618 ]


Fiche technique recommandé

No Description détaillée Fabricant
LTM4611 15A DC/DC uModule Regulator Linear Technology
Linear Technology
LTM4611 15A DC/DC uModule Regulator Linear Technology
Linear Technology
LTM4612 DC/DC uModule Linear Technology
Linear Technology
LTM4613 DC/DC uModule Regulator Linear Technology
Linear Technology

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche