TK115xx
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C unless otherwise specified
COMMON CHARACTERISTICS
RIPPLE REJECTION vs
FREQUENCY
0
TEST CIRCUIT 2
V
= V +1.5 V
O
S
IN
IN
4.5V
TK115xx
OUT
4.7
+
F
m
I
= 5 mA
O
S
–50
I
= 0 mA
O
TEST CIRCUIT 2
KT115xx • TC02
RIPPLE REJECTION TEST CIRCUIT
–100
0.100
1
10
100
FREQUENCY (kHz)TK115xx • TPC74
LINE
NOISE LEVEL vs
TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
FEEDBACK CAPACITOR
275 µV
200 µV
I
= 60 mA
O
V
= V +1 V
O
IN
LOW PASS FIL = 100 kHz
TK11580
TEST CIRCUIT 3
100 µV
TK11520
V
(OM) = V +1 V
O
IN
0
1 pF
5 µs/DIV
5 µs/DIV
10 pF 100 pF 1000 pF .01 µF 0.1 µF
TK115xx • TPC72
TK115xx • TPC71
C
F B
TK115xx • TPC97
TURN ON
CONTROL PIN CHARACTERISTICS
TRANSIENT RESPONSE
TEST CIRCUIT 3
+100
5
4
3
2
1
0
V
O
I
= 10 mA
O
5
0
V
IN
V
O
S
S
1
2
3
4
8
7
6
5
I
= 100 mA
O
+
4.7mF
I
I =Vcont,HC
S
O
C
FB
0
I =Vcont2,LC
S
V
SW
V
= V – V
ON/OFF
IN
SW
NOISE LEVEL TEST CIRCUIT
–100
0
1
2
3
4
5
t (50 µs/DIV)
V
; -V
ON/OFF ON/OFF
TK115xx • TPC75
TK115xx ¥ TPC73
Page 12
February, 1995 TOKO, Inc.
10-15-94
TOKO [ TOKO, INC ]
