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目录
一,产品概述(General Description)  The JTMH1006 is a high efficiency synchronous,dual channel PWM step-down DC/DC converter working under an input voltage range from 2.5V to 5.5V. It integrates two PWM synchronous step-down DC-DC converters. 100% duty cycle capability extends battery life in portable devices,while the quiescent current (one channel) is 200μA with no load, and drops to <1μA in shutdown.Each DC-DC converter has independent enable input and short-circuit protection allowing versatile power sequence combination. The JTMH1006 converters are available in the industry standard DFN3*3-10L packages (or upon request). 二.产品特点(Features) Up to 94% Efficiency Current Mode Operation for Excellent Line and Load Transient Response Up to 700mA Load Current Low Quiescent Current (one Channel) : 200μA Output Voltage: 0.6V ～ 5.5V Automatic PWM/PFM Mode Switching No Schottky Diode Required 1.4MHz Constant Frequency Operation Short-Circuit Protection Shutdown Quiescent Current: < 1μA DFN3*3-10L Package 三,应用范围 (Applications) Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards 四.技术规格书下载（产品PDF）
五,产品封装图 (Package)  六.电路原理图  七,功能概述 Power Dissipation………………………………………………………………………Internally limited Supply Input Voltage,VIN1,VIN2………………………………………………..………..…..-0.3V ～ 6V Output Voltage, VOUT1,VOUT2……………………………………………….....……….....-0.3V ～ 6V EN1, EN2 Pin Voltage………………………………..………………………...……-0.3V ～ (VIN+0.3)V SW1, SW2 Pin Voltage……………………………………………………….………-0.3V ～ (VIN+0.3)V SW1,SW2 Pin Current….……………………………………………………………………………..1.3A Operating Temperature Range(Note 2) ………………………………………………...-40℃ ～ + 85℃ Storage Temperature Range ………………………………………………….……….-65℃ ～ + 150℃ Junction Temperature ……………………………………………………………...……-40℃ ～ +125℃ Lead Temperature (Soldering 10 sec.) ……………………………………………….…………..+ 265℃ 八,相关芯片选择指南
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