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參數(shù)資料
| 型號(hào)： | LTC1555L-1.8 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | SIM Power Supply and Level Translator(SMI電源和電平轉(zhuǎn)換器) |
| 中文描述： | SIM卡電源和電平轉(zhuǎn)換（學(xué)校管理新措施電源和電平轉(zhuǎn)換器） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 138K |
| 代理商： | LTC1555L-1.8 |
LTC1555L-1.8
1
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
The LTC
1555L-1.8 provides power conversion and level
shifting needed for low voltage GSM and WCDMA cellular
telephones to interface with either 1.8V, 3V or 5V sub-
scriber identity modules (SIMs). The part contains a
buck/boost charge pump DC/DC converter that delivers a
regulated V
CC
supply voltage to the SIM card. Input
voltage may range from 2.6V to 6V allowing direct connec-
tion to the battery. The output voltage may be programmed
to 1.8V, 3V, 5V or direct connection to the V
IN
pin.
Internal level translators allow controllers operating with
supplies as low as 1.425V to interface with 1.8V, 3V and
5V SIMs. A soft-start feature limits inrush current at turn-
on, mitigating start-up problems that may result when the
input is supplied by another low-power DC/DC converter.
Battery life is maximized by 30
μ
A operating current, and
1
μ
A shutdown current. Board area is minimized by the
miniature 16-pin narrow SSOP packages and the need for
only three small external capacitors.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
SIM Interface in GSM Cellular Telephones
I
WCDMA SIM Interface
I
Smart Card Readers
APPLICATIOU
FEATURES
DESCRIPTIO
U
SIM Power Supply and
Level Translator
October 2000
I
Buck/Boost Charge Pump Generates 1.8V, 3V or 5V
I
Input Voltage Range: 2.6V to 6V
I
Controller Voltage Range: 1.425V to 4.4V
I
1.8V to 5V Signal Level Translators
I
>10kV ESD on All SIM Contact Pins
I
Short-Circuit and Overtemperature Protected
I
Very Low Operating Current: 30
μ
A
I
Very Low Shutdown Current: <1
μ
A
I
Soft-Start Limits Inrush Current at Turn-On
I
1MHz Switching Frequency
I
Available in 16-Pin Narrow SSOP Package
TYPICAL APPLICATIO
U
GSM Cellular Telephone SIM Interface
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CIN
RIN
DATA
DDRV
DV
CC
M2
M1
M0
CLK
RST
I/O
V
CC
= 1.8V,3V,5V
I
VCC
=
10mA
GND
CLK
RST
I/O
V
CC
V
IN
C1
+
C1
–
GND
0.1
μ
F
1
μ
F
LTC1555L-1.8
GSM
CONTROLLER
SIM
V
2.6V TO 6V
1.425V TO 4.4V
2.2
μ
F
1555L TA01
V
CC
Final Electrical Specifications
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| LTC1555LEGN | 功能描述:IC LEVEL TRANSLATER 16-SSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Logic Packages 標(biāo)準(zhǔn)包裝:2,500 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類型:電壓 輸出類型:電壓 數(shù)據(jù)速率:- 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:1.5ns 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:帶卷 (TR) 其它名稱:935284857118GTL2002DP/S440-TGTL2002DP/S440-T-ND |
| LTC1555LEGN#PBF | 功能描述:IC LEVEL TRANSLATOR 16-SSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Logic Packages 標(biāo)準(zhǔn)包裝:2,500 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類型:電壓 輸出類型:電壓 數(shù)據(jù)速率:- 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:1.5ns 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:帶卷 (TR) 其它名稱:935284857118GTL2002DP/S440-TGTL2002DP/S440-T-ND |
| LTC1555LEGN#TR | 功能描述:IC LEVEL XLATOR/SIM PS 16SSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Logic Packages 標(biāo)準(zhǔn)包裝:2,500 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類型:電壓 輸出類型:電壓 數(shù)據(jù)速率:- 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:1.5ns 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:帶卷 (TR) 其它名稱:935284857118GTL2002DP/S440-TGTL2002DP/S440-T-ND |
| LTC1555LEGN#TRPBF | 功能描述:IC LEVEL TRANSLATOR 16-SSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Logic Packages 標(biāo)準(zhǔn)包裝:2,500 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類型:電壓 輸出類型:電壓 數(shù)據(jù)速率:- 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:1.5ns 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:帶卷 (TR) 其它名稱:935284857118GTL2002DP/S440-TGTL2002DP/S440-T-ND |
| LTC1555LEGN-1.8 | 功能描述:IC LEVEL TRANSLATER 16-SSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Logic Packages 標(biāo)準(zhǔn)包裝:2,500 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類型:電壓 輸出類型:電壓 數(shù)據(jù)速率:- 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:1.5ns 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:帶卷 (TR) 其它名稱:935284857118GTL2002DP/S440-TGTL2002DP/S440-T-ND |
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