RT9262 Datasheet, PDF (6/12 Pages) Richtek Technology Corporation – HIGH EFFICIENCY, LOW SUPPLY CURRENT, STEP-UP DC/DC CONVERTER

RT9262/A
Function Block Diagram
Preliminary
VDD
LDOO
LFB
FB
CE
VDD
Q2
PMOS
RT9262
_ _0.86V
VDD _1.25V
Loop Control Circuit
R2
Q3
Over Temp.
NMOS _Detector
Shut Down
EXT
LX
Q1
NMOS
R1
GND
VDD
LBI
LBO
Q2
NMOS
RT9262A
_
+ 0.86V
FB
VDD _1.25V
Loop Control Circuit
R2
Shut Down
CE
Q3
Over Temp.
NMOS _Detector
EXT
LX
Q1
NMOS
R1
GND
www.richtek.com
6
DS9262/A-04 August 2002