RT7298BHGQW Datasheet, PDF (2/10 Pages) Richtek Technology Corporation – Evaluation Board

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Introduction
RT7298BHGQW
Evaluation Board
General Product Information
The RT7298BH is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 6A
output current from a 4.5V to 18V input supply. The RT7298BH current-mode architecture with external
compensation allows the transient response to be optimized over a wide range of loads and output capacitors.
Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge
during startup. Fault condition protections include output under-voltage protection, output over-voltage protection,
and over temperature protection. The low current shutdown mode provides output disconnection, enabling easy
power management in battery-powered systems. The RT7298BH is available in WQFN-14AL 3.5x3.5 package.
Product Feature
 Low R_DS(ON) Power MOSFET Switches 26mΩ/19mΩ
 Input Voltage Range : 4.5V to 18V
 Adjustable Switching Frequency : 200kHz to 1.6MHz
 Current-Mode Control
 Synchronous to External Clock : 200kHz to 1.6MHz
 Accurate Voltage Reference : 0.6V ± 1.25%
 Monotonic Start-Up into Pre-biased Outputs
 Adjustable Soft-Start
 Power Good Indicator
 Under-Voltage and Over-Voltage Protection
 Input Under-Voltage Lockout
 RoHS Compliant and Halogen Free
Key Performance Summary Table
Key Features
Default Input Voltage
Max Output Current
Default Output Voltage
Default Marking & Package Type
Operation Frequency
Other Key Features
Protection
Evaluation Board Number: PCB006_V1
12V
6A
1.0V
RT7298BHGQW, WQFN-14AL 3.5x3.5
Steady 500kHz at all loads
4.5V to 18V Input Voltage Range
Programmable Soft-Start, Adjustable Switching Frequency
Synchronous to External Clock
Power Good Indicator
Output Under-Voltage Protection (hiccup mode)
Output Over-Voltage Protection
Cycle-by-cycle Current Limit
Thermal Shutdown
UG7298BHGQW-00 January 2015
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