RT9264 ETC, RT9264 Datasheet - Page 3

• Manufacturer Part Number: RT9264
• Description: HIGH FREQUENCY HIGH EFFICIENCY STEP UP DC/DC CONVERTER
• Manufacturer: ETC

Pin Description
Function Block Diagram
DS9264-00 December 2001
Pin No. Pin Name
1
2
3
4
5
6
7
8
GND
EXT
LFB
LDOO
FB
VDD
LX
CE
LDOO
VDD
LFB
CE
FB
Ground
Output pin for driving external NMOS or NPN
When driving an NPN, a resistor should be added for limiting base current.
Feedback pin of the built-in LDO (Internal Vref = 0.86V)
Voltage output pin of the built-in LDO
Feedback input pin
Internal reference voltage for the error amplifier is 1.25V.
Input positive power pin of RT9264
Pin for switching
Chip enable
RT9264 gets into shutdown mode when CE pin set to low.
Pin Function
Q2
PMOS
VDD
VDD
Q3
NMOS
R2
1.25V
Over Temp.
Detector
1.25V
Preliminary
Loop Control Circuit
RT9264
Shut Down
Q1
NMOS
R1
EXT
LX
GND
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RT9264
3