RT9266 Datasheet (Richtek) - Step-up DC/DC Converter

RT9266, Step-up DC/DC Converter

Pin No.

SOT-23-6 11 235 44 52 63 SOT-89-5 EN EXT GND LX VDD FB Pin Name Pin Function Chip Enable (Active High).

Output Pin for Driving External N-MOSFET.

Ground.

Pin for Switching.

Input Positive Power Pin of RT9266.

Feedback Input Pin.

Internal Reference Voltage for the Error Amplifier is 1.25V.

® RT9266 Tiny Package, High Efficiency, Step-up DC/DC Converter General D escription The RT9266 is a compa ct, high ef ficiency, and low voltage step-up DC/DC converter with a n Adaptive Current Mode PWM control loop, include s a n error a mplifier, ra mp generator, comparator, switch pa ss element a nd driver in which providing a sta ble and high efficient operation over a wide ra nge of loa d currents.

It operate s in sta ble waveforms without external compensation.

The low start-up input vol

RT9266 Features

* z z z z z z z z z 1.0V Low Start-up Input Voltage High Supply Capability to Deliver 3.3V 100mA with 1 Alkaline Cell 17μA Quiescent (Switch-off) Supply Current Zero Shutdown Mode Supply Current 90% Efficiency 450kHz Fixed Switching Frequency Providing Flexibility for Using Internal and External Po