LM337
Figure 11. Ripple Rejection versus Output Voltage
100
RR, RIPPLE REJECTION (dB)
80
60
40
20
0
0
–5.0
–10
–15
–20
–25
Vout, OUTPUT VOLTAGE (V)
–30
–35
–40
Vin – Vout = 5.0 V
IL = 500 mA
f = 120 Hz
TJ = 25°C
RR, RIPPLE REJECTION (dB)
CAdj = 10
µF
Figure 12. Ripple Rejection versus Output Current
100
80
CAdj = 10
µF
Without CAdj
Without CAdj
60
40
20
0
0.01
Vin = –15 V
Vout = –10 V
f = 120 Hz
TJ = 25°C
0.1
1.0
IO, OUTPUT CURRENT (A)
10
Figure 13. Ripple Rejection versus Frequency
100
RR, RIPPLE REJECTION (dB)
80
CAdj =10
µF
60
40
20
0
10
Z O , OUTPUT IMPEDANCE (
Ω
)
Vin = –15 V
Vout = –10 V
IL = 500 mA
TJ = 25°C
101
Figure 14. Output Impedance
Vin = –15 V
Vout = –10 V
IL = 500 mA
CL = 1.0
µF
TJ = 25°C
Without CAdj
CAdj = 10
µF
100
10–1
Without CAdj
10–2
100
1.0 k
10 k
100 k
1.0 M
10 M
10–3
10
100
f, FREQUENCY (Hz)
1.0 k
10 k
f, FREQUENCY (Hz)
100 k
1.0 M
∆
V in, INPUT
∆V
out , OUTPUT
VOLTAGE CHANGE (V) VOLTAGE DEVIATION (V)
Figure 15. Line Transient Response
∆V
out , OUTPUT
VOLTAGE DEVIATION (V)
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0
–0.5
–1.0
–1.5
0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
0
–0.5
–1.0
0
Vout = –10 V
IL = 50 mA
TJ = 25°C
CL = 1.0
µF
10
20
t, TIME (µs)
30
40
Without CAdj
CAdj = 10
µF
I L , LOAD
CURRENT (A)
Figure 16. Load Transient Reponse
Without CAdj
CAdj = 10
µF
Vin = –15 V
Vout = –10 V
IL = 50 mA
TJ = 25°C
CL = 1.0
µF
10
20
t, TIME (µs)
30
40
6
MOTOROLA ANALOG IC DEVICE DATA
ONSEMI [ ON SEMICONDUCTOR ]
