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RT9266B, RT9266CB, RT9266CCX5

Table of contents:
Info of RT9266B
Info of RT9266CB
Info of RT9266CCX5

RT9266B, RT9266CB, RT9266CCX5 Selling Leads, Datasheet

MFG:RICHTEK Package Cooled:SOT23-6 D/C:7

RT9266B, RT9266CB, RT9266CCX5 Datasheet download

Five Points

Part Number: RT9266B

MFG: RICHTEK

Package Cooled: SOT23-6

D/C: 7

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RT9266B General Description

The RT9266B 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 RT9266B suitable for 1 to 4 battery cells applications with a 500mA internal switch. The 550kHz high switching rate minimized the size of external components. Besides, the 25A low quiescent current together with high efficiency maintains long battery lifetime.

RT9266B Maximum Ratings

`Supply Voltage -------------------------------------------------------------- −0.3V to 7V
`LX Pin Switch Voltage ----------------------------------------------------- −0.3V to 6.5V
`Other I/O Pin Voltages --------------------------------------------−0.3V to (V_DD+ 0.3V)
`LX Pin Switch Current ----------------------------------------------------------------2.5A
`EXT Pin Driver Current ----------------------------------------------------------- -200mA
`Package Thermal Resistance
SOT-23-6, JC -----------------------------------------------------------------145°C/W
`Operating Junction Temperature ---------------------------------------------------125°C
`Storage Temperature Range ---------------------------------------- −65°C to +150°C

RT9266B Features

`1.0V Low Start-up Input Voltage at 1mA Load
`25A Quiescent (Switch-off) Supply Current
`Zero Shutdown Mode Supply Current
`90% Efficiency
`550kHz Switching Frequency at 3.3V VDD
`Providing Flexibility for Using Internal and External Power Switches
`Small SOT-23-6 Package
`RoHS Compliant and 100% Lead (Pb)-Free

RT9266B Typical Application

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

RT9266B Connection Diagram

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