LTC4557EUD Linear Technology, LTC4557EUD Datasheet - Page 4

• Manufacturer Part Number: LTC4557EUD
• Description: IC DUAL SIM/SMART CARD PS 16QFN
• Manufacturer: Linear Technology

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

LTC4557
4
TYPICAL PERFOR A CE CHARACTERISTICS
70
80
75
65
60
55
2.7
No Load Supply Current vs V
3.1
DROPOUT
3.5
SUPPLY VOLTAGE (V)
V
1V/DIV
1V/DIV
CCX
DATA
I/0X
3.9
3.0
2.5
1.0
2.0
1.5
0.5
= 3V
0
2.7
V
vs Supply Voltage
Data – I/O Channel, C
C
4.3
V
L
BATT
DVCC
= 40pF
T
I
3.1
V
CCA
A
CCX
= 25 C
= 1.8V
4.7
Shutdown Current
= I
= 1.8V
3.5
W
CCB
SUPPLY VOLTAGE (V)
5.1
BATT
= 0 A
4557 G01
3.9
200ns/DIV
U
5.5
T
A
4.3
= 25 C
T
T
A
L
A
= 85 C
4.7
= –40 C
= 40pF
4.5
4.0
6.0
5.5
5.0
–40
5.1
I/O X Short-Circuit Current
vs Temperature
4557 G04
V
V
4557 G06
DVCC
CCX
5.5
= 3V
–15
= V
BATT
TEMPERATURE ( C)
= 5.5V
10
35
5V/DIV
5V/DIV
5V/DIV
2V/DIV
RSTX
CLKX
60
V
I/OX
CCX
0.7
0.4
0.2
0.6
0.5
0.3
0.1
0
4557 G02
1.2
DV
vs Supply Voltage
Deactivation Sequence,
C
C
V
T
VCCX
VCCX
BATT
A
85
1.6
CC
= –40 C TO 85 C
= 1 F
Shutdown Current
= 5.5V
2 2.4
= 1 F
SUPPLY VOLTAGE (V)
140
120
100
2.8
80
60
40
20
0
10 s/DIV
10
3.2
V
(I
T
V
BATT
VBATT
A
BATT
3.6
= 25 C
= 3.1V
Quiescent Current
4
100
– I
4.4
LOAD CURRENT ( A)
CC
4.8
) vs Load Current
5.2
1000
4557 G05
4557 G07
5.6
10000
4557 G03
100000
4557f