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CDRH4D18-100 PDF预览

CDRH4D18-100

更新时间: 2024-01-14 15:46:41
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
8页 144K
描述
Dual Micropower DC/DC Converter with Positive and Negative Outputs

CDRH4D18-100 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active包装说明:2020
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8504.50.80.00风险等级:5.39
大小写代码:2020构造:Magnetic Shielded
型芯材料:Ferrite直流电阻:0.2 Ω
标称电感 (L):10 µH电感器应用:POWER INDUCTOR
电感器类型:GENERAL PURPOSE INDUCTOR功能数量:1
端子数量:2封装高度:2 mm
封装长度:5 mm封装形式:SMT
封装宽度:5 mm包装方法:Tape
最大额定电流:0.61 A系列:CDRH4D18NP
形状/尺寸说明:RECTANGULAR PACKAGE屏蔽:NO
表面贴装:YES端子位置:DUAL ENDED
端子形状:ONE SURFACE测试频率:0.1 MHz
容差:30%Base Number Matches:1

CDRH4D18-100 数据手册

 浏览型号CDRH4D18-100的Datasheet PDF文件第2页浏览型号CDRH4D18-100的Datasheet PDF文件第3页浏览型号CDRH4D18-100的Datasheet PDF文件第4页浏览型号CDRH4D18-100的Datasheet PDF文件第5页浏览型号CDRH4D18-100的Datasheet PDF文件第6页浏览型号CDRH4D18-100的Datasheet PDF文件第7页 
LT1945  
Dual Micropower DC/DC  
Converter with Positive and  
Negative Outputs  
U
FEATURES  
DESCRIPTIO  
The LT®1945 is a dual micropower DC/DC converter in a  
10-pin MSOP package. Each converter is designed with a  
350mA current limit and an input voltage range of 1.2V to  
15V, making the LT1945 ideal for a wide variety of appli-  
cations. Both converters feature a quiescent current of  
only 20µA at no load, which further reduces to 0.5µA in  
shutdown.Acurrentlimited,fixedoff-timecontrolscheme  
conserves operating current, resulting in high efficiency  
over a broad range of load current. The 36V switch allows  
high voltage outputs up to ±34V to be easily generated  
without the use of costly transformers. The LT1945’s low  
off-time of 400ns permits the use of tiny, low profile  
inductors and capacitors to minimize footprint and cost in  
space-conscious portable applications.  
Generates Well-Regulated Positive and  
Negative Outputs  
Low Quiescent Current:  
20  
µ
A in Active Mode (per Converter)  
<1  
µA in Shutdown Mode  
Operates with VIN as Low as 1.2V  
Low VCESAT Switch: 250mV at 300mA  
Uses Small Surface Mount Components  
High Output Voltage: Up to ±34V  
Tiny 10-Pin MSOP Package  
U
APPLICATIO S  
Small TFT LCD Panels  
Handheld Computers  
Battery Backup  
Digital Cameras  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Dual Output (+12V, –20V) Converter  
C4  
0.1µF  
L1  
10µH  
D1  
V
IN  
–20V  
10mA  
Efficiency at VIN = 3.6V  
2.7V  
TO 5V  
8
10  
90  
100pF  
365k  
V
SW1  
IN  
85  
2
4
1
5
+12V OUTPUT  
SHDN1  
NFB1  
80  
C1  
4.7µF  
C2  
1µF  
LT1945  
D2  
–20V OUTPUT  
75  
70  
65  
60  
SHDN2  
FB2  
24.9k  
GND PGND PGND SW2  
3
7
9
6
115k  
55  
C3  
1µF  
4.7pF  
D3  
1M  
50  
L2  
10µH  
0.1  
1
10  
100  
12V  
20mA  
1945 TA01  
LOAD CURRENT (mA)  
1945 TA01a  
C1: TAIYO YUDEN JMK212BJ475  
C2, C3: TAIYO YUDEN TMK316BJ105  
C4: TAIYO YUDEN EMK107BJ104  
D1, D2, D3: ZETEX ZHCS400  
L1, L2: MURATA LQH3C100  
1945f  
1

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