LTC4557EUD Linear Technology, LTC4557EUD Datasheet - Page 12

• 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
RELATED PARTS
PART NUMBER
LTC1514
LTC1515
LTC1555/LTC1556
LTC1555L
LTC1555L-1.8
LTC1755/LTC1756
LTC1955
LTC1986
LTC3250-1.5
LTC3251
LTC4555
LTC4556
12
TYPICAL APPLICATIO
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
50mA, 650kHz, Step-Up/Down Charge Pump with
Low-Battery Comparator
50mA, 650kHz, Step-Up/Down Charge Pump with
Power On Reset
SIM Power Supply and Level Translator for 3V/5V SIM Cards
SIM Power Supply and Level Translator for 3V/5V SIM Cards
SIM Power Supply and Level Translator for
1.8V/3V/5V SIM Cards
Smart Card Interface with Serial Control for 3V/5V
Smart Card Applications
Dual Smart Card Interface with Serial Control for 1.8V/3V/5V
Smart Card Applications
SIM Power Supply for 3V/5V SIM Cards
250mA, 1.5MHz, High Efficiency Step-Down Charge Pump
500mA, 1MHz to 16MHz, Spread Spectrum Step-Down
Charge Pump
SIM Power Supply and Level Translator for 1.8V/3V SIM Cards
Smart Card Interface with Serial Control for 1.8V/3V/5V
CONTROLLER
U
DV
CC
www.linear.com
C3
0.1 F
10
13
12
11
1.2V TO 4.4V
9
8
DV
CLKIN
RSTIN
DATA
ENABLE
M0
M1
DV
CC
CC
2
LTC4557
3V TO 6V
V
V
RSTA
RSTB
CLKA
CLKB
V
V
BATT
BATT
GND
I/OA
I/OB
CCA
CCB
3
17
1
16
15
14
5
6
7
4
COMMENTS
V
V
V
I
V
I
V
I
V
SSOP24
V
V
I
85% Efficiency, V
I
85% Efficiency, V
I
V
V
QFN24
SD
SD
Q
SD
SD
Q
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
C4
0.1 F
= 32 A, I
= 9 A, I
: 2.7V to 10V, V
: 2.7V to 10V, V
: 2.7V to 10V, V
: 2.6V to 6.6V, V
: 2.6V to 6.6V, V
: 2.7V to 7V, V
: 3V to 6V, V
: 2.6V to 4.4V, V
: 3V to 6V, V
: 2.7V to 5.5V, V
< 1 A, SSOP16, SSOP20
< 1 A, SSOP16
< 1 A, ThinSOT
< 1 A, ThinSOT
C1
1 F
C2
1 F
SD
SD
C7
C2
C3
C1
C1
C3
C2
C7
< 1 A, MS10
< 1 A, SSOP16
OUT
OUT
CLK
RST
I/O
V
V
CLK
RST
I/O
IN
OUT
IN
CC
CC
OUT
OUT
OUT
: 3.1V to 5.5V, V
: 3.1V to 5.5V, V
OUT
OUT
= 1.8V/3V, I
OUT
= 1.8V/3V, I
OUT
GND
GND
1.8V/3V
1.8V/3V
SMART
= 3V/5V, I
CARD
CARD
C5
C5
= 3V/5V, I
= 3.3V or 5V, I
= 3V/5V, Frequency = 650kHz, I
SIM
= 3V/5V, Frequency = 1MHz, I
= 1.8V/3V/5V, Frequency = 1MHz,
= 3V/5V, Frequency = 900kHz, I
= 1.8V/3V/5V, I
4557 TA02
LINEAR TECHNOLOGY CORPORATION 2004
Q
Q
Q
Q
= 60 A, I
= 200 A, I
= 40 A, I
= 60 A, I
OUT
OUT
Q
LT/TP 0204 1K • PRINTED IN USA
Q
= 60 A, I
: 0.9V to 1.6V, 1.2V/1.5V,
= 1.2V/1.5V, I
= 250 A, I
SD
SD
SD
SD
< 1 A, SSOP16,
< 1 A, QFN16
= 10 A, SO-8
< 1 A, QFN32
SD
SD
< 1 A, SO-8
Q
Q
< 1 A,
Q
Q
= 40 A,
= 35 A,
= 60 A,
= 14 A,
4557f