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SY21196ARAC - High Efficiency, Fast Response, 6A, 18V Input Synchronous Buck with I2C Interface

Features

·           4.5V to 18V Input Voltage Range

·           6A Synchronous Buck Regulator:

o   Low RDS(ON) for Internal Switches (Top FET/Bottom FET): 50/15 M?

o   6.0A Output Current Capability

o   Instant PWM Architecture to Achieve Fast Transient Responses

o   200khz to 1MHz Programmable Switching Frequency

o   I2CProgrammable Output Voltage with Initial Voltage Setting By Resistor Divider

o   0.6V+/-1% Feedback Reference Voltage

o   Enable Control

o   Power Good Indicator

o   Adjustable Soft-Start Time

o   PSM Mode at Light Load For High Efficiency

o   Cycle-By-Cycle Current Limit Protection

o   Hic-Cup Mode Output Short Circuit Protection

o   Hic-Cup Mode Output Over Voltage Protection

·           I2CCompatible Interface:

o   Supports 100khz Standard Mode and 400khz Fast Mode

o   7-Bits VID Programmable Output Voltage From 0.68V To 1.95V With 10mv/Step

o   VID Voltage Transition Slew Rate Control

o   Power Good Status Read Back

o   Over Temperature Warning Read Back

o   On/Off Control

·           Thermal Shutdown with Auto Recovery

·           Input UVLO

·           Rohs Compliant and Halogen Free

·           Compact Package: QFN3x3-20

Typical Application

Description

SY21196A develops a high efficiency synchronous buck regulator capable of delivering 6A output current. The device operates over a wide input voltage range from 4.5V to 18V. SY21196A adopts instant PWM architecture to achieve fast transient response.

SY21196A integrates an I2Ccompatible interface for output voltage setting, status read back, etc. The device also features enable control, open drain power good indicator, cycle-by-cycle current limit, short circuit protection and thermal shutdown.

SY21196A provides compact solution for TCON power system. It is available in a QFN3x3-20 package.

Applications

·         Tcon Power System

·         Mobile Handsets

·         Portable Applications

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