RN5RT
OPERATION
VDD 2
3 VOUT
R1
+
–
R2
Current Limit
Vref
1 GND
5
CE
In these ICs, Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the detected Output Voltage is
compared with a reference voltage by Error Amplifier, so that a constant voltage is output.
A current limit circuit working for Short Protect and a chip enable circuit for standby function are included.
TEST CIRCUITS
2 VDD
VOUT 3
IOUT
VIN C1
5 CE
GND
1
C2
C1, C2=1µF
Fig.1 Standard Test Circuit
2 VDD
VOUT 3
IOUT
VIN P.G.
5 CE
GND
1
C1
C1=1µF
Fig.3 Line Transient Response Test Circuit
ISS→
C1
A
2 VDD
VOUT 3
5 CE
GND
1
C1=1µF
Fig.2 Supply Current Test Circuit
10