LTC3704EMS Linear Technology, LTC3704EMS Datasheet - Page 18

• Manufacturer Part Number: LTC3704EMS
• Description: IC INV SYNC 5.2V 50MA 10MSOP
• Manufacturer: Linear Technology
• Type: Invertingr

Specifications of LTC3704EMS

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -5.2V
• Current - Output: 50mA
• Frequency - Switching: 50kHz ~ 1MHz
• Voltage - Input: 2.5 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

APPLICATIO S I FOR ATIO
LTC3704
It should be noted that these equations assume no cou-
pling between the inductors. If the inductors are wound on
the same core, the ripple currents at the input and output
can be tuned to very low values, and so the equations
above would be extremely conservative. It is highly rec-
ommended that the user experiment in the lab with the
same magnetics and capacitors which will be used in
production.
Note that the ripple current ratings from capacitor manu-
facturers are often based on only 2000 hours of life. This
18
I
RMS COUT
(
)
≥
12
Table 1. Recommended Component Manufacturers
VENDOR
AVX
BH Electronics
Coilcraft
Coiltronics
Diodes, Inc
Fairchild
General Semiconductor
International Rectifier
IRC
Kemet
Magnetics Inc
Microsemi
Murata-Erie
Nichicon
On Semiconductor
Panasonic
Sanyo
Sumida
Taiyo Yuden
TDK
Thermalloy
Tokin
Toko
United Chemicon
Vishay/Dale
Vishay/Siliconix
Vishay/Sprague
Zetex
U
1
•
( –
1
U
D
f
MAX
)
W
•
V
L
O
2
Inductors, Transformers
Small-Signal Discretes
Inductors, Capacitors
Capacitors, Inductors
Tantalum Capacitors
MOSFETs, Diodes
Sense Resistors
COMPONENTS
Toroid Cores
Capacitors
Capacitors
Capacitors
Capacitors
Capacitors
Heat Sinks
Capacitors
Capacitors
Capacitors
Inductors
Inductors
MOSFETs
Inductors
Inductors
Resistors
MOSFETs
Diodes
Diodes
Diodes
Diodes
U
makes it advisable to further derate the capacitor or to
choose a capacitor rated at a higher temperature than
required. Several capacitors may also be placed in parallel
to meet size or height requirements in the design.
Manufacturers such as Nichicon, United Chemicon and
Sanyo should be considered for high performance through-
hole capacitors. The OS-CON semiconductor dielectric
capacitor available from Sanyo has the lowest product of
ESR and size of any aluminum electrolytic, at a somewhat
higher price.
In surface mount applications, multiple capacitors may
have to be placed in parallel in order to meet the ESR or
RMS current handling requirements of the application.
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[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
TELEPHONE
generalsemiconductor.com
aavidthermalloy.com
component.tdk.com
bhelectronics.com
fairchildsemi.com
chemi-com.com
WEB ADDRESS
coiltronics.com
microsemi.com
panasonic.com
nichicon.com
mag-inc.com
avxcorp.com
coilcraft.com
murata.co.jp
t-yuden.com
tokoam.com
onsemi.com
sumida.com
diodes.com
sanyo.co.jp
vishay.com
vishay.com
vishay.com
kemet.com
tokin.com
zetex.com
irctt.com
irf.com
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