DataSheetWiki


LTM4604A fiches techniques PDF

Linear Technology - 4A DC/DC uModule

Numéro de référence LTM4604A
Description 4A DC/DC uModule
Fabricant Linear Technology 
Logo Linear Technology 





1 Page

No Preview Available !





LTM4604A fiche technique
www.DataSheet4U.com
LTM4604A
Low Voltage, 4A DC/DC
µModule with Tracking
FEATURES
Complete Standalone Power Supply
±1.75% Total DC Output Error (–40°C to 125°C)
Wide Input Voltage Range: 2.375V to 5.5V
4A DC, 5A Peak Output Current
0.8V to 5V Output
Output Voltage Tracking
UltraFastTM Transient Response
Power Good Indicator
Current Mode Control
Current Foldback Protection, Parallel/Current Sharing
Up to 95% Efficiency
Programmable Soft-Start
Micropower Shutdown: IQ ≤ 7μA
Overtemperature Protection
Small and Very Low Profile Package:
15mm × 9mm × 2.3mm LGA (0.630mm Pads)
APPLICATIONS
Telecom and Networking Equipment
Servers
Storage Cards
ATCA Cards
Industrial Equipment
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
μModule and UltraFast are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
DESCRIPTION
The LTM®4604A is a complete 4A switch mode DC/DC
power supply with ±1.75% total output voltage error.
Included in the package are the switching controller, power
FETs, inductor and all support components. Operating over
an input voltage range of 2.375V to 5.5V, the LTM4604A
supports an output voltage range of 0.8V to 5V, set by a
single resistor. This high efficiency design delivers up to
4A continuous current (5A peak). Only bulk output capaci-
tors are needed to complete the design.
The 0.630mm LGA pads with 1.27mm pitch simplify
PCB layout by providing standard trace routing and via
placement. (The LTM4604A has smaller pads than the
LTM4604.) The low profile package (2.3mm) enables
utilization of unused space on the bottom of PC boards
for high density point of load regulation. High switching
frequency and a current mode architecture enable a very
fast transient response to line and load changes without
sacrificing stability.
Fault protection features include foldback current protec-
tion, thermal shutdown and a programmable soft-start
function. The LTM4604A is offered in a small thermally
enhanced 15mm × 9mm × 2.3mm LGA package and is
Pb free and RoHS compliant.
TYPICAL APPLICATION
3.3V to 2.5V/4A μModule™ Regulator
VIN
3.3V
10μF
6.3V
VIN
PGOOD VOUT
LTM4604A
COMP
FB
RUN/SS TRACK
GND
VIN
2.37k
VOUT
2.5V
4A
22μF
6.3V
×2
4604A TA01a
Efficiency vs Output Current
100
VIN = 3.3V
95 VOUT = 2.5V
90
85
80
75
70
65
0
1 23
OUTPUT CURRENT (A)
4
4604A TA01b
4604af
1

PagesPages 20
Télécharger [ LTM4604A ]


Fiche technique recommandé

No Description détaillée Fabricant
LTM4604 4A DC/DC uModule Linear Technology
Linear Technology
LTM4604A 4A DC/DC uModule 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