TK717 View Datasheet(PDF) - Toko America Inc
Part Name
Description
Manufacturer
TK717 Datasheet PDF : 20 Pages
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TK717xxS
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
Ripple Rejection
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0.1
MULTILAYER CERAMIC CAPACITOR
CL = 0.22 µF
CL = 2.2 µF
1
10
100
FREQUENCY (kHz)
1000
Conditions:
VIN = 5.0 V
VOUT = 3.0 V
IOUT = 10 mA
VRIPPLE = 500 mVp-p
f = 100 Hz to 1 MHz
CIN = 0 pF
CN = 0.01 mF
500 mVp-p
Input Wave Form
VIN
GND
VIN
VOUT
717xx
VCONT
CL
CN
0.1 µF
TANTALUM CAPACITOR
GND
0
-10
-20
CL = 0.22 µF
-30
-40
-50
-60
-70
-80
CL = 2.2 µF
-90
-100
0.1
1
10
100
FREQUENCY (kHz)
1000
The ripple rejection characteristic depends on the characteristic and the capacitance value of the capacitor connected to
the output side. The RR characteristic of 50 kHz or more varies greatly with the capacitor on the output side and the PCB.
Please confirm your expectations with your actual design, if necessary.
RIPPLE REJECTION vs. IOUT
0
-10
CN = 0.01 µF
-20
CL = 0.22 µF (MLCC)
VIN = 5.0 V
-30
VRIPPLE = 500 mVp-p
-40
-50
-60
Freq = 1 kHz
-70
-80
Freq = 400 Hz
-90
-100
0 25 50 75 100 125 150 175 200
IOUT (mA)
January 2002 TOKO, Inc.
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
RR AT LOW VOLTAGE
CN = 0.01 µF
CL = 0.22 µF (MLCC)
IOUT: 1, 50, 100, 150,
200 mA
IOUT = 200mA
VIN = VOUT
IOUT = 1mA
+0.2 +0.4 +0.6 +0.8 +1
VIN - VOUT(TYP) (V)
Page 7
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