- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382260 > LTC4557EUD (LINEAR TECHNOLOGY CORP) Dual SIM/Smart Card Power Supply and Interface PDF資料下載
參數(shù)資料
| 型號： | LTC4557EUD |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Dual SIM/Smart Card Power Supply and Interface |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16 |
| 封裝： | 3 X 3 MM, PLASTIC, MO-220WEED-2, QFN-16 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 231K |
| 代理商： | LTC4557EUD |
1
LTC4557
4557f
I
GSM and 3G Cellular Phones
I
Wireless P.O.S. Terminals
I
Multiple SAM Card Interface
I
Power Management and Signal Level Translators
for Two SIM Cards or Smart Cards
I
Independent 1.8V/3V V
CC
Control for Both Cards
I
Automatic Level Translation
I
ISO7816, ETSI and EMV Compatible
I
Dynamic Pull-Ups Deliver Fast Signal Rise Times*
I
Built-In Fault Protection Circuitry
I
Automatic Activation/Deactivation Sequencing
Circuitry
I
Low Operating/Shutdown Current
I
>10kV ESD on SIM Card Pins
I
Compatible with EMV Fault Tolerance Requirements
I
Available in 16-Lead (3mm
×
3mm) QFN Package
APPLICATIU
Dual SIM/Smart Card
Power Supply and Interface
Deactivation Sequence
, LTC and LT are registered trademarks of Linear Technology Corporation.
*U.S. Patent No. 6,356,140
The LTC
4557 provides power conversion and signal level
translation needed for 2.5G and 3G cellular telephones to
interface with 1.8V or 3V subscriber identity modules
(SIMs). The part meets all requirements for 1.8V and 3V
SIMs. The part contains LDO regulators to power 1.8V or
3V SIM cards from a 2.7V to 5.5V input. The output
voltages can be set using the two voltage selection pins
and up to 50mA of load current can be supplied.
Internal level translators allow controllers operating with
supplies as low as 1.2V to interface with 1.8V or 3V smart
cards. Battery life is maximized by a low operating current
of less than 100
μ
A and a shutdown current of less than
1
μ
A. Board area is minimized by the low profile 3mm
×
3mm
×
0.75mm leadless QFN package.
DV
CC
CLKIN
V
BATT
I/OA
V
3V TO 6V
DV
1.2V TO 4.4V
LTC4557
μ
CONTROLLER
V
CCA
DV
CC
RSTA
CLKA
C1
C1
C5
C5
C3
C2
C7
C7
C2
C3
GND
V
CCB
CLKB
RSTB
I/OB
0.1
μ
F
1
μ
F
1
μ
F
RSTIN
DATA
ENABLE
M0
M1
0.1
μ
F
4557 TA01
1.8V/3V
SIM
CARD
1.8V/3V
SMART
CARD
V
CC
I/O
RST
CLK
GND
GND
V
CC
CLK
RST
I/O
RSTX
5V/DIV
CLKX
5V/DIV
I/OX
5V/DIV
V
2V/DIV
10
μ
s/DIV
C
VCCX
= 1
μ
F
4557 G07
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC490IN8 | Differential Driver and Receiver Pair |
| LT490 | PC BOARD FR4 9.19X6.3 FOR D-SUB |
| LTC490 | Differential Driver and Receiver Pair |
| LTC490C | Differential Driver and Receiver Pair |
| LTC490CN8 | Differential Driver and Receiver Pair |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4557EUD#PBF | 功能描述:IC DUAL SIM/SMART CARD PS 16QFN RoHS:是 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:* |
| LTC4557EUD#TR | 功能描述:IC DUAL SIM/SMART CARD PS 16QFN RoHS:否 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:* |
| LTC4557EUD#TRPBF | 功能描述:IC DUAL SIM/SMART CARD PS 16QFN RoHS:是 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:* |
| LTC4558EUD#PBF | 功能描述:IC SIM/SMART CARD PS 20-QFN RoHS:是 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:* |
| LTC4558EUD#TRPBF | 功能描述:IC SIM/SMART CARD PS 20-QFN RoHS:是 類別:RF/IF 和 RFID >> RF 其它 IC 和模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:* |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。