LTC4555EUD Linear Technology, LTC4555EUD Datasheet - Page 5

• Manufacturer Part Number: LTC4555EUD
• Description: IC SIM PWR SUP/LVL TRNSLTR 16QFN
• Manufacturer: Linear Technology

Specifications of LTC4555EUD

• Function: Power Management, Signal Level Translation
• Rf Type: Cellular
• Secondary Attributes: SIM & Smart Card Interface
• Package / Case: 16-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BLOCK DIAGRAM
CELL PHONE
PROCESSOR
INTERFACE
PROCESSOR
PROCESSOR
PROCESSOR
SHUTDOWN
FROM SIM
DATA TO/
VOLTAGE
SELECT
CLOCK
RESET
FROM
FROM
V
V
PIN
SIM
CC
0.1μF
C3
14
13
15
1
2
SHDN
V
R
C
DATA
LTC4555
SEL
IN
IN
3
20k
DV
CC
50mA LDO
10
(3V TO 6V)
V
GND
BAT
5
V
BAT
10k
RST
CLK
I/0
V
CC
11
7
9
8
C2
0.1μF
C1
1μF
CLOCK
1.8V/3V
AT 50mA
RESET
BIDIRECTIONAL
I/O
SMART CARD
INTERFACE
SIM/
4555 BD
LTC4555
4555fb
5