Datasheet LM337 (ON Semiconductor) - 6

LM337
100 100 C 80 Adj = 10 mF 80 CAdj = 10 mF Without CAdj 60 60 Without CAdj 40 40 V Vin = -15 V in - Vout = 5.0 V V RR, RIPPLE REJECTION (dB) out = -10 V 20 IL = 500 mA RR, RIPPLE REJECTION (dB) 20 f = 120 Hz f = 120 Hz T TJ = 25°C J = 25°C 0 0 0 -5.0 -10 -15 -20 -25 -30 -35 -40 0.01 0.1 1.0 10 Vout, OUTPUT VOLTAGE (V) IO, OUTPUT CURRENT (A)
Figure 11. Ripple Rejection versus Output Voltage Figure 12. Ripple Rejection versus Output Current
100 101 Vin = -15 V Vin = -15 V Vout = -10 V Ω 80 Vout = -10 V IL = 500 mA 100 IL = 500 mA C T C Adj =10 mF J = 25°C L = 1.0 mF 60 TJ = 25°C IMPEDANCE () 10-1 Without CAdj 40 Without CAdj C RR, RIPPLE REJECTION (dB) , OUTPUT 10-2 Adj = 10 mF 20 OZ 0 10-3 10 100 1.0 k 10 k 100 k 1.0 M 10 M 10 100 1.0 k 10 k 100 k 1.0 M f, FREQUENCY (Hz) f, FREQUENCY (Hz)
Figure 13. Ripple Rejection versus Frequency Figure 14. Output Impedance
0.6 TION (V) 0.8 TION (V) 0.4 Without C 0.6 0.2 Adj , OUTPUT , OUTPUT out 0.4 out 0 ΔV TAGE DEVIA ΔV 0.2 Without C TAGE DEVIA -0.2 Adj CAdj = 10 mF VOL 0 VOL -0.4 CAdj = 10 mF -0.2 -0.6 -0.4 0 Vin = -15 V V (A) V out = -10 V out = -10 V 0 I -0.5 IL = 50 mA , INPUT L = 50 mA in , LOAD T TJ = 25°C V -0.5 J = 25°C L -1.0 Δ I C CL = 1.0 mF TAGE CHANGE (V) L = 1.0 mF CURRENT -1.0 -1.5 0 10 20 30 40 VOL 0 10 20 30 40 t, TIME (ms) t, TIME (ms)
Figure 15. Line Transient Response Figure 16. Load Transient Response www.onsemi.com 6