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LT1370CR PDF预览

LT1370CR

更新时间: 2024-09-23 22:55:51
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
16页 297K
描述
500kHz High Efficiency 6A Switching Regulator

LT1370CR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:D2PAK包装说明:TO-263, SMSIP7H,.55,50TB
针数:7Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.05模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:25 V最小输入电压:2.7 V
标称输入电压:5 VJESD-30 代码:R-PSSO-G7
JESD-609代码:e0长度:10.2235 mm
湿度敏感等级:1功能数量:1
端子数量:7最高工作温度:70 °C
最低工作温度:最大输出电流:10 A
标称输出电压:1.245 V封装主体材料:PLASTIC/EPOXY
封装代码:TO-263封装等效代码:SMSIP7H,.55,50TB
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:4.877 mm子类别:Switching Regulator or Controllers
最大供电电流 (Isup):6 mA表面贴装:YES
切换器配置:BOOST最大切换频率:580 kHz
技术:BIPOLAR温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier端子形式:GULL WING
端子节距:1.27 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:20宽度:8.89 mm
Base Number Matches:1

LT1370CR 数据手册

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LT1370  
500kHz High Efficiency  
6A Switching Regulator  
U
DESCRIPTION  
FEATURES  
The LT®1370 is a monolithic high frequency current mode  
switching regulator. It can be operated in all standard  
switching configurations including boost, buck, flyback,  
forward, inverting and “Cuk.” A 6A high efficiency switch  
is included on the die, along with all oscillator, control and  
protection circuitry.  
Faster Switching with Increased Efficiency  
Uses Small Inductors: 4.7µH  
All Surface Mount Components  
Low Minimum Supply Voltage: 2.7V  
Quiescent Current: 4.5mA Typ  
Current Limited Power Switch: 6A  
Regulates Positive or Negative Outputs  
The LT1370 typically consumes only 4.5mA quiescent  
current and has higher efficiency than previous parts.  
High frequency switchingallows for very smallinductors  
to be used.  
Shutdown Supply Current: 12µA Typ  
Easy External Synchronization  
Switch Resistance: 0.065Typ  
U
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 12µA. Unique error amplifier  
circuitry can regulate positive or negative output voltage  
while maintaining simple frequency compensation tech-  
niques. Nonlinear error amplifier transconductance  
reduces output overshoot on start-up or overload recov-  
ery. Oscillator frequency shifting protects external com-  
ponents during overload conditions.  
APPLICATIONS  
Boost Regulators  
Laptop Computer Supplies  
Multiple Output Flyback Supplies  
Inverting Supplies  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
5V to 12V Boost Converter  
12V Output Efficiency  
92  
D1  
5V  
V
= 5V  
L = 10µH  
IN  
MBRD835L  
L1*  
V
OUT  
90  
88  
86  
84  
82  
80  
12V  
V
IN  
R1  
53.6k  
1%  
ON  
V
SW  
S/S  
OFF  
LT1370  
C4**  
*COILTRONICS  
UP2-4R7 (4.7µH)  
UP4-100 (10µH)  
+
+
C1**  
FB  
C
22µF  
25V  
× 2  
22µF  
GND  
V
25V  
**  
R2  
AVX TPSD226M025R0200  
6.19k  
1%  
MAX I  
OUT  
C2  
0.047µF  
R3  
2k  
L1  
I
OUT  
C3  
0.0047µF  
4.7µH 1.8A  
10µH 2A  
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0  
LOAD CURRENT (A)  
LT1370 • TA01  
LT1370 • TA02  
1

LT1370CR 替代型号

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