TK11250C Toko America, TK11250C Datasheet - Page 8

• Manufacturer Part Number: TK11250C
• Description: (TK112xxC) LDO Regulator
• Manufacturer: Toko America

Noise （ Vrms)
300
250
200
150
100
TOKO Inc.
Increase Cnp to decrease the noise. The recommended Cnp capacitance is 6800pF(682) ~ 0.22 F(224).
The amount of noise increases with the higher output voltages.
Noise( Vrms)
50
0
Output noise
95
90
85
80
75
70
65
60
55
50
45
40
35
Noise( V/ Hz)
1
0.01
0
0.1
10
1
10
CL=Tantal
50
TK11230C Cnp vs Noise
10
TK11230C Iout vs. Noise
CL=MLCC
100
Cnp=10000pF BPF:400
TK11230C Cnp vs. Noise
100
Cnp （ ｐF ）
100
CL=MLCC
Frequency
Iout(mA)
Cnp=0.1 F
150
Noise Level(1/f)
Iout=30mA BPF:400
1000
200
1k
CL=0.22uF
CL=0.47uF
CL=1.0uF
CL=2.2uF
CL=10uF
（ Hz)
Cnp=0.01 F
250
IC Data Sheet
10000
80kHz
CL=0.22 F
CL=0.47 F
CL=1.0 F
CL=2.2 F
CL=10 F
GC3-H026 A
10k
Cnp=1000pF
300
Iout=30mA BPF=400Hz
80kHz
100000
Noise( Vrms)
95
90
85
80
75
70
65
60
55
50
45
40
35
100k
0
Noise
( Vrms)
90
80
70
60
50
40
30
20
10
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TK11230CM
50
CL=Tantal
CL=0.22 F（Ceramic)
Iout=30mA Cnp=10000pF CL=0.22 F(MLCC)
TK11230C Iout vs Noise
BPF:400
TK112xxC Vout vs Noise
100
Cnp=10000pF BPF:400
80kHz
Iout(mA)
80kHz
Vout(V)
150
Cin=10 F Iout=10mA
TK112xxC
200
Page 8
CL=0.22uF
CL=0.47uF
CL=1.0uF
CL=2.2uF
CL=10uF
250
80kHz
300