目录
一,产品概述(General Description) ![]() The JTMH3018C is high efficiency synchronous,PWM step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work under the input voltage between 2V and 4.5V with a 400kHz fixed frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The JTMH3018C is capable of supplying an output voltage between 2.5V and 5.5V, the internal synchronous switch is desired to provide high efficiency without Schottky. The JTMH3018C regulators are available in the industry standard SOP8/PP power packages. 二.产品特点(Features) ![]() Up to 93% Efficiency Low Voltage Start-up: 2V Up to 3A Load Current Shut-down Current: 3μA Input Voltage: 2V ~ 4.5V Output Voltage: 2.5V ~ 5.5V 400kHz Fixed Frequency Switching Available in SOP8/PP Package 三,应用范围 (Applications) ![]() Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media players 四.技术规格书下载(产品PDF) ![]()
![]() ![]() 六.电路原理图 ![]() ![]() 七,功能概述 ![]() VOUT………………………………………………...…………………………..………....-0.3V ~ 6.5V VSW …….…………………………………..…………………………….…..……………-0.3V ~ 6.5V VEN…………………………………………...………………..…………………………-0.3V ~ 6.5V Operating Temperature Range (Note 2)…………………..…………………………-40℃ ~ +85℃ Storage Temperature Range ……………………………………...………………..-65℃ ~ +150℃ Lead Temperature (Soldering 10 sec.) ……….……..…………………………………………+265℃ 八,相关芯片选择指南 ![]()
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