The JTMH8701 is hih efficiency, fixed frequency, Buck-Boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The devices are suitable for single lithi

一,产品概述(General Description)      

   The JTMH8701 is hih efficiency, fixed frequency, Buck-Boost DC/DC converter that operates from input voltagesebX嘉泰姆

 above, below or equal to the output voltage. The devices are suitable for   single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.ebX嘉泰姆

The switching frequencies up to 1.5 MHz could be fixed by an external resistor. Also the oscillator could be synchronized to an external clock. The quiescent current is 1mA which maximizes the battery life in portable applications.ebX嘉泰姆

Other features include a 1μA shutdown, thermal shutdown and current limit. The JTMH8701 is available in the 10-pin thermally enhanced MSOP package (or upon request).ebX嘉泰姆

二</span>.产品特点(Features)

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Ø  Synchronous Rectification up to 95% EfficiencyebX嘉泰姆

Ø  Single InductorebX嘉泰姆

Ø  Fixed Frequency Operation with Battery Voltages Above, Below or Equal to the OutputebX嘉泰姆

Ø  Quiescent Current: 1mA (50μA low power mode: mode pin high)ebX嘉泰姆

Ø  Continuous Output Current up to 1AebX嘉泰姆

Ø  Input Voltage Range: 1.8V to 5.5VebX嘉泰姆

Ø  Programmable Oscillator Frequency from 350kHz to 1.5MHzebX嘉泰姆

Ø  No Schottky Diodes Required (V_OUT < 4.3V)ebX嘉泰姆

Ø  V_OUT Disconnected from V_IN During ShutdownebX嘉泰姆

Ø  Shutdown Current: <1μAebX嘉泰姆

Ø  Small Thermally Enhanced 8-pin SOP PackageebX嘉泰姆

三</span>,应用范围 (Applications)

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Ø  Handheld InstrumentsebX嘉泰姆

Ø  MP3/MP4 PlayersebX嘉泰姆

Ø  Palmtop computersebX嘉泰姆

Ø  Digital CamerasebX嘉泰姆

四.技术</span>规格书下载（产品PDF）</span>

五,产品封装图 (Package)


六.电路原理图</span>

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