PRS-505
30
IC204, 205, 409 XC6213B312NR
CE 1
VSS 2
VIN
4
VOUT
3
+
–
ON/OFF
CONTROL
CURRENT
LIMIT
VOLTAGE
REFERENCE
IC302 XC6215B152NR
IC303 XC6215B312NR
IC406 XC6215B292NR
EACH CIRCUIT
2
VSS
1
CE
ERROR AMP
VIN
4
VOUT
3
ON/OFF
CONTROL
VOLTAGE
REFERENCE
CURRENT
LIMIT
+
–
IC402 XC9226A296MR
IC403 XC9226A196MR
Vref with
Soft Start,
CE
PWM/PFM
Selector
Ramp Wave
Generator
OSC
CE/MODE
Control
Logic
Phase
Compesation
Synch.
Buffer
Drive
Current Feedback
Current Limit
Logic
Logic
Lx(SW)
5
CE/MODE(EN) 3
VIN 1
VSS 2
-
+
-
+
-
+
R2
R1
R4
R3
Vout(CE)
4
Summary of Contents for PRS-505
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