Figure 7. Quiescent drain
current vs. junction tem-
perature (100% duty cycle)
Figure 8. Reference voltage
(pin 2) vs. V
i
Figure 9. Reference voltage
versus junction temperature
(pin 2)
Figure 10. Open loop fre-
quency and phase responde
of error amplifier
Figure 11. Switching fre-
quency vs. input voltage
Figure 12. Switching fre-
quency vs. junction tem-
perature
Figure 13. Switching fre-
quency vs. R2 (see test circuit)
Figure 14. Line transient
response
Figure 15. Load transient
response
7/16
L4960
8/16
Figure 16. Supply voltage
ripple rejection vs. frequency
Figure 17. Dropout voltage
between pin 1 and pin 7 vs.
current at pin 7
Figure 18. Dropout voltage
between pin 1 and 7 vs.
junction temperature
Figure 19. Power dissipation
derating curve
Figure 20. Efficiency vs.
output current
Figure 21. Efficiency vs.
output current
Figure 22. Efficiency vs.
output current
Figure 23. Efficiency vs.
output voltage
L4960
APPLICATION INFORMATION
Figure 24. Typical application circuit
C
1
, C
6
, C
7
: EKR (ROE)
D
1
: BYW80 OR 5A SCHOTTKY DIODE
SUGGESTED INDUCTOR: L
1
= 150
µ
H at 5A
CORE TYPE: MAGNETICS 58206 - A2 - MPP
N
°
TURNS: 45, WIRE GAUGE: 0.8mm (20 AWG), COGEMA 946042
U15/GUP15: N
°
TURNS: 60, WIRE GAUGE: 0.8mm (20 AWG), AIR GAP: 1mm, COGEMA 969051.
Figure 25. P.C. board and component layout of
the Fig. 24 (1 : 1 scale)
Resistor values for
standard output voltages
V
o
R3 R4
12V
15V
18V
24V
4.7K
4.7K
4.7K
4.7K
6.2K
9.1K
12K
18K
9/16
L4960

L4960

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 5.1 to 40V 2.5 Amp
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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