LTC4557EUD Linear Technology, LTC4557EUD Datasheet - Page 10
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LTC4557EUD
Manufacturer Part Number
LTC4557EUD
Description
IC DUAL SIM/SMART CARD PS 16QFN
Manufacturer
Linear Technology
Datasheet
1.LTC4557EUD.pdf
(12 pages)
Specifications of LTC4557EUD
Function
Power Management, Signal Level Translation
Rf Type
Cellular, 3G, GSM
Secondary Attributes
SIM & Smart Card Interface
Package / Case
16-WFQFN Exposed Pad
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC4557EUD
Manufacturer:
LT
Quantity:
10 000
Part Number:
LTC4557EUD
Manufacturer:
LINEAR
Quantity:
20 000
APPLICATIO S I FOR ATIO
LTC4557
Shutdown Modes
The LTC4557 can enter a low current shutdown mode by
one of two methods. First, the ENABLE pin can be brought
LOW by the controller to directly shut down the part. The
other way is to lower DV
power-on-reset circuit automatically puts the part into
shutdown mode.
10
U
CC
U
below 1.2V, at which point the
W
U
Ultralow Shutdown Current
In either of the two shutdown modes, the shutdown
current is less than 1 A. For applications that require
virtually zero shutdown current, the DV
grounded. This will reduce the V
a single microampere.
BATT
current to well under
CC
pin can be
4557f