Elite Semiconductor EMH7021
The EMH7021 is a high efficiency, synchronous fixed frequency, current-mode step-up DC/DC converter. The fixed 500KHz switching frequency obtains maximum efficiency up to 96% and uses only a few external components. The features of EMH7021 include current limit, low battery comparator, open-drain power good output, short circuit, and thermal shutdown protection.
| Part No. |
EMH7021 |
| Datasheet |
EMH7021
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| Manufacturer |
 Elite Semiconductor |
| Description |
500KHz PWM Synchronous Boost Converter |
| Buy |
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GENERAL DESCRIPTION
During shutdown mode, the output is completely isolated from the input without drawing any battery current. Digital Still Cameras Portable applications MP3 Players GPS Receivers FEATURES
Up to 96% efficiency Reference voltage: 0.5V Output to input disconnect at shutdown mode Current delivery - 1A@VOUT=3.3V, VBAT=2.4V - 1A@VOUT=5.0V, VBAT=3.6V Switch current limit protection 500KHz fixed switching frequency Thermal shutdown protection 0.5V Low-battery comparator Min-start up voltage: 0.93V Low quiescent current: 48uA (Tpy.) Low shutdown current < 1uA TDFN 3x3mm 10 pins package With 150 Ω loading, the minimum start-up voltage can be as low as 0.93V, provided by a one or two-cell alkaline or one-cell Li-Lon battery. The EMH7021 package. is also available in 3X3mm TDFN-10 APPLICATIONS
Mobile Phone Typical Application Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: May 2012 Revision: 1.1 1/16 ESMT/EMP C...
