Tiny Package, High Efficiency, Step-up DC/DC Converter

RT9266

The RT9266 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external compensation.
The low start-up input voltage below 1V makes RT9266 suitable for 1 to 4 battery cells applications of providing up to 300mA output current. The 450kHz high switching rate minimized the size of external components. Besides, the 17μA low quiescent current together with high efficiency maintains long battery lifetime.
The output voltage is set with two external resistors. Both internal 2A switch and driver for driving external power devices (NMOS or NPN) are provided.

Applications

PDA
DSC
LCD Panel
RF-Tags
MP3
Portable Instrument
Wireless Equipment

Key Spec.

	RT9266
Status	Active
Vin (min) (V)	2
Vin (max) (V)	6
Vout (min) (V)	2.6
Vout (max) (V)	6
Output Adj. Method	Resistor
Iq (typ) (mA)	0.55
SW Current Limit (typ) (A)	2
Freq (typ) (kHz)	500
Freq (min) (kHz)	425
Freq (max) (kHz)	575
Ron (typ) (Ohm)	0.3
Features	Enable Input;OCP;UVP
Package Type	SOT-26;SOT-89-5