ESMT/EMP
DC/DC Boost Converter
General Description
EMH7601 designed with high efficiency step up DC/DC converter for por...
ESMT/EMP
DC/DC Boost Converter
General Description
EMH7601 designed with high efficiency step up DC/DC converter for portable devices applications. It features with extreme low 26μA quiescent current with no load which is the best fit for extending battery life during the standby mode.
EMH7601
Battery Powered, High Efficiency Synchronous
Features
Single or dual battery operation Achieve 93% efficiency Output Current up to 500mA Reference voltage 1.195V Typical Iq 26μA with no load No
Schottky diode needed Shutdown current < 1μA Excellent Line and Load Transient Response
The start-up voltage is 0.93V typically with operating voltage down to 0.7V. With Synchronous structure, it does not need any external
Schottky diode. The peak current is limited to 1A for quick turn on.
Applications
Blue-Tooth devices Cellular and Smart Phones Personal multi-media Player (PMP) Wireless networking Hand-Held Devices with 1 to 3-Cell of NiMH/NiCd Batteries Digital Still Cameras Portable applications
This product can provide 500mA load current and still maintained at least 70% efficiency and above 90% efficiency when at 100mA load current.
The EMH7601 is available in SOT-23-5 & TDFN-6 package, With RoHS compliance.
Typical Application
Efficiency vs. Load Current 100.0% 90.0% 80.0% Efficiency (%) 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.01 0.1 1 10 100 1000 Output Current (mA)
Fig. 1
Fig. 2
Elite Semiconductor Memory Technology Inc./Elite MicroPow...