6A, 18V, Synchronous Step-Down Converter

RT7298A

The RT7298A 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 RT7298A 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 start-up. 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.

Applications

High Performance Point of Load Regulation
Notebook Computers
High Density and Distributed Power Systems

Key Spec.

	RT7298A
Status	Active
Vin (min) (V)	4.5
Vin (max) (V)	18
Number of Outputs	1
Vout (min) (V)	0.6
Vout (max) (V)	15
Output Adj. Method	Resistor
Iout (max) (A)	6
Current Limit (typ) (A)	11
Freq (typ) (kHz)	480
Freq (min) (kHz)	200
Freq (max) (kHz)	1600
Ext Sync	Yes
Ron_HS (typ) (mOhm)	26
Ron_LS (typ) (mOhm)	19
Iq (typ) (mA)	0.6
Features	100% Duty Cycle;Adjustable Frequency;Adjustable Soft-Start;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;External Synchronization;OCP;OTP;PSM;Power Good;Stable with Ceramic Capacitor;UVP
Package Type	WQFN3.5x3.5-14A