- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382252 > LT1947 (Linear Technology Corporation) RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS PDF資料下載
參數(shù)資料
| 型號(hào)： | LT1947 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 177K |
| 代理商： | LT1947 |
LT1947
1
1947f
I
TFT-LCD Notebook Display Panels
I
TFT-LCD Desktop Monitor Display Panels
I
Digital Cameras
I
Handheld Computers
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Complete Solution Under 1.2mm
I
Develops Three Outputs from a 3.3V or 5V Supply
I
Externally Programmable V
ON
Delay
I
Fixed Frequency Low Noise Outputs
I
All Ceramic Capacitors
I
3MHz Switching Frequency
I
Fast Transient Response
I
Few External Components Required
I
2.7V to 8V Input Range
I
Adjustable AV
DD
and V
ON
Voltages
I
Tiny 10-Lead MSOP Package
Adjustable Output TFT-LCD
Triple Switching Regulator
Figure 1. 3.3V Powered TFT-LCD Bias Generator
The LT
1947 is a highly integrated multiple output DC/DC
converter designed for use in TFT-LCD panels. The device
contains two independent switching regulators. The main
regulator has an adjustable output voltage with an internal
1.1A switch that can generate a boosted voltage as high as
30V. The second regulator’s output is also adjustable up
to 30V and can deliver 10mA for positive bias. A simple
level-shift charge pump off the main switch node gener-
ates the negative bias voltage. An external capacitor sets
the delay time from AV
DD
’s final value to the rising edge at
the V
ON
pin. The 3MHz switching frequency allows the use
of tiny low profile chip inductors and capacitors through-
out, providing a low noise, low cost total solution with all
components under 1.2mm in height. The device operates
from an input range of 2.7V to 8V and is available in a
10-lead MSOP package.
SW2
D2
V
IN
SW1
L1
3.3
μ
H
L2
4.7
μ
H
D1
D3
D4
SHDN C
T
LT1947
GND
V
O2
R3
182k
R1
53.6k
C2
3.3
μ
F
CERAMIC
×
2
C1: TAIYO YUDEN LMK316BJ225MD
C2: TAIYO YUDEN LMK325BJ335MD
×
2
C3: AVX 0.22
μ
F 25V X7R
C4, C6: TAIYO YUDEN LMK107BJ684MA
C4
0.68
μ
F
CERAMIC
AV
DD
8V
200mA
C6
0.68
μ
F
V
ON
24V
10mA
V
–8V
10mA
R2
10k
1947 F01
R4
10k
FB1
V
ON
C5
10nF
C3
220nF
C1
2.2
μ
F
CERAMIC
V
IN
SHUTDOWN
FB2
D1: MBRM120LT3
D2: CMDSH-3
D3, D4: BAT54S DUAL DIODE
L1: SUMIDA CLQ4D103R3
L2: TAIYO YUDEN LB2012B4R7M
2ms/DIV
1947 TA01.tif
V
5V/DIV
V
ON
20V/DIV
AV
DD
10V/DIV
V
10V/DIV
Start-Up Waveforms
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1956 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1956-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1964 | 200mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT |
| LT1964ES5-5 | 200mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT |
| LT1964ES5-BYP | 200mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1947_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adjustable Output TFT-LCD Triple Switching Regulator |
| LT1947EMS | 功能描述:IC SW REG TFT-LCD TRPL ADJ10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1947EMS#PBF | 功能描述:IC SW REG TFT-LCD TRPL ADJ10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR) |
| LT1947EMS#TR | 功能描述:IC SW REG TFT-LCD TRPL ADJ10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1947EMS#TRPBF | 功能描述:IC SW REG TFT-LCD TRPL ADJ10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。