RT9262A中文资料High Efficiency, Low Supply Current, Step-up DC/DC Converter数据手册Richtek规格书

描述 Description

General Description
The RT9262/A is a compact, high efficient, step-up DC/DC converter with an adaptive current mode PWM control loop, providing a stable and high efficient operation over a wide range of load currents. It operates in both continuous and discontinuous current modes in stable waveforms without external compensation.
The low start-up input voltage below 1V makes RT9262/A suitable for 1 to 4 battery cell applications providing up to 400mA output current. The 550kHz high switching rate minimized the size of external components. Besides, the 17μA low quiescent current together with high efficiency maintains long battery lifetime.

特性 Features

1.0V Low Start-up Input Voltage
High Supply Capability to Deliver 3.3V 100mA with 1V Input Voltage
17μA Quiescent (Switch-off) Supply Current
90% Efficiency
550kHz Fixed Switching Rate
Providing Flexibility for Using Internal and External Power Switches
Built-in 300mA LDO, also for the Zero-Output Current Shutdown Mode (RT9262)
Boost DC-DC Integrating LDO for Up-Down Regulation (RT9262)
Built-in 0.86V Voltage Detector (RT9262A)
8-Pin SOP Package
RoHS Compliant and 100% Lead (Pb)-FreeApplications
PDA
Portable Instrument
Wireless Equipment
DSC
LCD Back Bias Circuit
RF-Tags