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EMH7021 - 500KHz PWM Synchronous Boost Converter

Description

The EMH7021 is a high efficiency, synchronous fixed frequency, current-mode step-up DC/DC converter.

During shutdown mode, the output is completely isolated from the input without drawing any battery current.

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.

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Datasheet Details

Part number EMH7021
Manufacturer Elite Semiconductor
File Size 357.47 KB
Description 500KHz PWM Synchronous Boost Converter
Datasheet download datasheet EMH7021 Datasheet
Additional preview pages of the EMH7021 datasheet.

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Full PDF Text Transcription

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ESMT/EMP EMH7021 1A, 500KHz PWM Synchronous Boost Converter with Output Isolated During Shutdown General Description The EMH7021 is a high efficiency, synchronous fixed frequency, current-mode step-up DC/DC converter. During shutdown mode, the output is completely isolated from the input without drawing any battery current. The fixed 500KHz switching frequency obtains maximum efficiency up to 96% and uses only a few external components.     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.
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