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參數資料
| 型號： | LT1111IS8 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Voltage-Mode SMPS Controller |
| 中文描述： | 電壓模式開關電源控制器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 196K |
| 代理商： | LT1111IS8 |
1
LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
800mA Low Dropout
Positive Regulators
Adjustable and Fixed 2.85V,
3.3V, 5V
Active Terminator for SCSI-2 Bus
Dropout Voltage (V
IN
– V
OUT
)
I
Space Saving SOT-223 Surface Mount Package
I
3-Terminal Adjustable or Fixed 2.85V, 3.3V, 5V
I
Output Current of 800mA
I
Operates Down to 1V Dropout
I
Guaranteed Dropout Voltage at Multiple Current Levels
I
0.2% Line Regulation Max
I
0.4% Load Regulation Max
The LT
1117 is a positive low dropout regulator designed
to provide up to 800mA of output current. The device is
available in an adjustable version and fixed output voltages
of 2.85V, 3.3V and 5V. The 2.85V version is designed
specifically to be used in Active Terminators for the SCSI
bus. All internal circuitry is designed to operate down to 1V
input to output differential. Dropout voltage is guaranteed
at a maximum of 1.2V at 800mA, decreasing at lower load
currents. On chip trimming adjusts the reference/output
voltage to within
±
1%. Current limit is also trimmed in
order to minimize the stress on both the regulator and the
power source circuitry under overload conditions.
The low profile surface mount SOT-223 package allows
the device to be used in applications where space is
limited. The LT1117 requires a minimum of 10
μ
F of output
capacitance for stability. Output capacitors of this size or
larger are normally included in most regulator designs.
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the quiescent
current of the LT1117 flows into the load, increasing
efficiency.
I
Active SCSI Terminators
I
High Efficiency Linear Regulators
I
Post Regulators for Switching Supplies
I
Battery Chargers
I
5V to 3.3V Linear Regulators
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
18 TO 27
LINES
LT1117 TA01
10
μ
F
110
110
110
110
4.75V TO
5.25V
22
μ
F
LT1117-2.85
IN
GND
OUT
+
+
OUTPUT CURRENT (mA)
0
0
D
0.2
0.4
0.6
0.8
1.0
1.4
100
400
600
800
LT1117 TPC01
1.2
200 300
500
700
T
J
= 25
°
C
T
J
= 125
°
C
INDICATES GUARANTEED TEST POINT
0
°
C
≤
T
J
≤
125
°
C
–40
°
C
≤
T
J
< 0
°
C
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1111IS8#PBF | 功能描述:IC REG BUCK BOOST INV ADJ 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1111IS8#TR | 功能描述:IC REG BUCK BOOST INV ADJ 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LT1111IS8#TRPBF | 功能描述:IC REG BUCK BOOST INV ADJ 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LT1111IS8PBF | 制造商:Linear Technology 功能描述:DC/DC Converter Adj Micropower 2-30V SO8 |
| LT1111M | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
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