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參數(shù)資料
| 型號： | LTC1986 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 3V/5V SIM Power Supply,Micropower Charge Pump DC/DC Converter(用于3V/5V SMI電源,微功耗電荷泵DC/DC變換器) |
| 中文描述： | 3V/5V SIM卡電源，微功耗電荷泵DC / DC轉(zhuǎn)換器（用于3V/5V管理新措施電源，微功耗電荷泵型DC / DC變換器） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 149K |
| 代理商： | LTC1986 |
1
LTC1986
I
V
IN
Range: 2.6V to 4.4V
I
Step-Up Charge Pump Generates 5V
I
Output Current: 10mA
I
V
IN
to V
OUT
Direct Connection for 3V SIMs
I
Ultralow Power
Operating Current: 14
μ
A
Shutdown Current: <1
μ
A
I
No Inductors
I
Short-Circuit/Thermal Protected
I
Switching Frequency: 900kHz
I
Soft-Start Limits Inrush Current at Turn-On
I
Output Driven to Ground During Shutdown
I
Ultrasmall Application Circuit (<0.045in
2
)
I
6-Lead SOT-23 Package
The LTC
1986 is a micropower charge pump DC/DC
converter that provides power for either 3V or 5V GSM
SIM cards. It operates in one of three modes: V
OUT
= 5V
(5V mode), V
OUT
= V
IN
(3V mode) or shutdown. The input
voltage range is 2.6V to 4.4V and the part can provide
10mA of output current. The LTC1986 allows V
IN
to drop
as low as 2.6V by providing a boost feature in 3V mode. In
3V mode, V
OUT
is connected directly to V
IN
through a 2.5
switch until V
IN
drops below 2.85V. When V
IN
is below
2.85V, the part automatically boosts V
OUT
to maintain a
regulated 2.9V output, thereby ensuring V
OUT
stays within
the 3V SIM V
CC
specification.
Extremely low operating current (14
μ
A typical with no
load) and low external parts count make the part ideally
suited for small, light load battery-powered applications.
The total PCB area of the application circuit shown below
is less than 0.045in
2
. Protection features include inrush
current limiting, undervoltage lockout, short circuit and
thermal overload protection. The LTC1986 is available in
a 6-lead SOT-23 package.
I
GSM Cellular Telephones
I
PCS/DCS Cellular Telephones
I
Portable POS Terminals
3V/5V SIM Power Supply
in SOT-23
, LTC and LT are registered trademarks of Linear Technology Corporation.
V
OUT
GND
MODE
V
IN
C1
+
C1
–
1
2
3
6
5
4
V
OUT
= 5V
IN
GSM
CONTROLLER
2.2
μ
F
0.047
μ
F
0.1
μ
F
V
IN
= 2.6V TO 4.4V
LTC1986
750k
1M
3/5
SHDN
1986 TA01
SHDN
0
0
1
1
3/5
0
1
0
1
MODE
SHUTDOWN
SHUTDOWN
V
OUT
= 5V
V
OUT
= V
IN
3V/5V SIM Power Supply
INPUT VOLTAGE (V)
2.5
O
4
5
4.5
1986 TA02
3
2
3.0
3.5
4.0
6
T
A
= 25
°
C
I
OUT
= 10mA
5V MODE
3V MODE
(V
OUT
= V
IN
)
Output Voltage vs Input Voltage
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1986ES6#PBF | 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Cut Tape SIM Pwr Supply in SOT-23 6-lead |
| LTC1986ES6#TR | 功能描述:IC REG BOOST SWITCHED CAP SOT23 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LTC1986ES6#TRM | 功能描述:IC REG BOOST SWITCHED CAP SOT23 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LTC1986ES6#TRMPBF | 功能描述:IC REG BOOST SWITCHED CAP SOT23 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LTC1986ES6#TRPBF | 功能描述:IC REG BOOST SWITCHED CAP SOT23 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
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