1.2A, 24V, 700kHz Step-Down Converter

RT8258

The RT8258 is a high voltage buck converter that can support the input voltage range from 4.5V to 24V and the output current can be up to 1.2A. Current Mode operation provides fast transient response and eases loop stabilization.
The chip also provides protection functions such as cycle-by-cycle current limiting and thermal shutdown protection. The RT8258 is available in a SOT-23-6 and TSOT-23-6 packages.

Applications

Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
WLED Drivers

Key Spec.

	RT8258
Status	Active
Vin (min) (V)	4.5
Vin (max) (V)	24
Number of Outputs	1
Vout (min) (V)	0.8
Vout (max) (V)	15
Output Adj. Method	Resistor
Iout (max) (A)	1.2
Current Limit (typ) (A)	2.1
Freq (typ) (kHz)	700
Ext Sync	No
Ron_HS (typ) (mOhm)	300
Iq (typ) (mA)	0.55
Features	Built-in Bootstrap Switch;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;Force PWM;Internal Compensation;OCP;Stable with Ceramic Capacitor
Package Type	SOT-26;TSOT-26