RT8206B Datasheet PDF – Power Supply Controller – Richtek

Part Number : RT8206B

Function : (RT8206A/B) Main Power Supply Controllers

Manufacturers : Richtek Technology

Image :

RT8206B Image


Description :

The RT8206A/B dual step-down, Switch Mode Power Supply (SMPS) controller generates logic supply voltages in battery powered systems. The RT8206A/B includes two Pulse Width Modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. An optional external charge pump can be monitored through SECFB (RT8206A).

This device also features a linear regulator providing a fixed 5V output. The linear regulator provides up to 70mA output current with automatic linear regulator bootstrapping to the BYP input. The RT8206A/B includes on-board power up sequencing, the power good outputs, internal soft-start, and internal soft-discharge output that prevents negative voltages on shutdown.


RT8206B Datasheet

Official HomePage : http://www.richtek.com/download_ds.jsp?s=838


RT8206B Datasheet PDF Download

RT8206B pdf

Other data sheets within the file : RT8206A, RT8206AGQW, RT8206BGQW

EST7502C Datasheet – Power Supply Supervisor – EST

Part Number : EST7502C, Marking : EST.7502C

Function : Power Supply Supervisor With PWM Controller

Package : 16 Pin DIP or SOP

Manufactures : East Semiconductor ( http://www.esthome.com/ )



The EST7502C is designed with a pulse-width-modulation control circuit and a complete power supervisor for use in the switched mode power supply. It contains various functions, like under voltage protection (UVP), over voltage protection (OVP), power good output (PG) and ON/OFF control (REM). UVP(Under voltage protection) function is for +3.3V, +5V, +12V outputs. OVP(Over voltage protection) function is for +3.3V, +5V, +12V and PT is for extra protection input. PG(Power good signal) is a safe operation signal to inform the external parts. REM(Remote on/off) is used to control the SMPS on/off. The REM control signal has the on/off transferred debounce–time.






1. 3-channel under voltage protection (UVP)
2. 3-channel over voltage protection (OVP)
3. 1-channel extra protection (PT)
4. 1-channel sense input to control the PG (SEN)
5. Remote on/off control function (REM)
6. Dual output for push-pull operation (OP1/OP2)
7. Soft start capability by external capacitor (SS)
8. VCC under voltage lockout


Application Circuit



EST7502C Datasheet


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