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參數(shù)資料
| 型號： | LT1372CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Synchronous 4-Bit Up/Down Binary Counters With 3-State Outputs 20-SOIC 0 to 70 |
| 中文描述： | 2.7 A SWITCHING REGULATOR, 580 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 274K |
| 代理商： | LT1372CS8 |
1
LT1372/LT1377
500kHz and 1MHz
High Efficiency
1.5A Switching Regulators
I
Boost Regulators
I
CCFL Backlight Driver
I
Laptop Computer Supplies
I
Multiple Output Flyback Supplies
I
Inverting Supplies
APPLICATIO
S
U
The LT
1372/LT1377 are monolithic high frequency
switching regulators. They can be operated in all standard
switching configurations including boost, buck, flyback,
forward, inverting and “Cuk.” A 1.5A high efficiency switch
is included on the die, along with all oscillator, control and
protection circuitry. All functions of the LT1372/LT1377
are integrated into 8-pin SO/PDIP packages.
The LT1372/LT1377 typically consumes only 4mA quies-
cent current and has higher efficiency than previous parts.
High frequency switching allows for very small inductors
to be used. All surface mount components consume less
than 0.5 square inch of board space.
New design techniques increase flexibility and maintain
ease of use. Switching is easily synchronized to an exter-
nal logic level source. A logic low on the shutdown pin
reduces supply current to 12
μ
A. Unique error amplifier
circuitry can regulate positive or negative output voltage
while maintaining simple frequency compensation tech-
niques. Nonlinear error amplifier transconductance re-
duces output overshoot on start-up or overload recovery.
Oscillator frequency shifting protects external compo-
nents during overload conditions.
DESCRIPTIO
N
U
I
Faster Switching with Increased Efficiency
I
Uses Small Inductors: 4.7
μ
H
I
All Surface Mount Components
I
Only 0.5 Square Inch of Board Space
I
Low Minimum Supply Voltage: 2.7V
I
Quiescent Current: 4mA Typ
I
Current Limited Power Switch: 1.5A
I
Regulates Positive or Negative Outputs
I
Shutdown Supply Current: 12
μ
A Typ
I
Easy External Synchronization
I
8-Pin SO or PDIP Packages
FEATURES
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
5V-to-12V Boost Converter
12V Output Efficiency
OUTPUT CURRENT (A)
0.01
50
E
60
70
80
90
0.1
1
LT1372 TA02
100
V
IN
= 5V
LT1372/LT1377
V
IN
V
C
5V
1
2
8
5
4
6, 7
GND
FB
LT1372 TA01
V
SW
S/S
L1*
4.7
μ
H
C1**
22
μ
F
C4**
22
μ
F
C2
0.047
μ
F
C3
0.0047
μ
F
R3
2k
R2
6.19k
1%
R1
53.6k
1%
V
OUT
12V
D1
MBRS120T3
ON
OFF
*COILCRAFT DO1608-472 (4.7
μ
H) OR
COILCRAFT DT3316-103 (10
μ
H) OR
SUMIDA CD43-4R7 (4.7
μ
H) OR
SUMIDA CD73-100KC (10
μ
H) OR
**AVX TPSD226M025R0200
L1
4.7
μ
H
10
μ
H
0.35A
I
OUT
0.25A
MAX I
OUT
+
+
相關PDF資料 |
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| LT1372HV | Synchronous 4-Bit Up/Down Binary Counters With 3-State Outputs 20-SOIC 0 to 70 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1372CS8#PBF | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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(shù):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(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1372CS8#TR | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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(shù):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 |
| LT1372CS8#TRPBF | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)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(shù):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 |
| LT1372CS8PBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Up/Down 25V SOIC8 |
| LT1372HV | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500kHz and 1MHz High Efficiency 1.5A Switching Regulators |
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