2.0A 380kHz 23V High Efficiency Step-Down DC/DC Converter - ITE Tech
Description
CONFIDENTIAL
IT7612
2.
0A 380kHz 23V High Efficiency Step-Down DC/DC Converter
Preliminary Specification V0.
2.
2
ITE TECH.
INC.
This specification is subject to Change without notice.
It is provided “AS IS” and for reference only.
For purchasing information, please contact the nearest ITE TECH sales representatives.
ECONfficiency(%F) IDENTIAL
IT7612
General Description
The IT7612 is a high efficiency step-down DC/DC converter series with the output current up to 2A and incorporates low on-resistance NMOS at the high side.
Included on the substrate with the features listed is a high performance trans-conductance error amplifier that provides tight voltage regulation and accuracy under transient conditions.
Embedded is Under Voltage Lockout (UVLO) circuit to prevent the device start-up under 4.
5V input voltage threshold.
In addition, it features an over-current protection and thermal shutdown.
To improve the light load efficiency, it is designed as the power saving mode (PSM) to minimize the switching loss by reducing the switching frequency.
The IT7612 is available in MSOP10EP & SOP8 package.
Application
Set-Top-Box, DVD, LCD Display High Power LED Power Supply Distributed Power System Data comm.
xDSL CPE
Pin Configuration
Features
Confidential Information
High Efficiency up to 93% Power Saving Mode (PSM) during the light Load
Operation Wide Input Voltage Range from 4.
5V to 23V Adjustable Output Voltage Range from 0.
92V to 12V Output Current up to 2.
0A 380kHz Constant Frequency Operation Current Mode Control Over-temperature Protection Over-current Protection Under Voltage Lockout (UVLO) 10μA Shutdown Current Internal Soft-Start MSOP10EP & SOP8 Package RoHS Compliant (100% Green available)
Ordering Information
Part No.
Package
Shipment
IT7612MS IT7612M
MSOP10EP 3000/Tape & Reel
SOP8
2500/Tape & Reel
Efficiency Table
Typical Application
100
90
80
PSM
70
60 PSM
50
40
30
20 10
Vin=12V Efficiency
Vo=5V Vo=1.
8V
100 Iou...
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