Figure 7. Quiescent drain
current vs. junction tem-
perature (100% duty cycle)
Figure 8. Reference voltage
(pin 10) vs. V
i
rdip) vs. V
i
Figure 9. Reference voltage
(pin 10 ) vs. junction tem-
perature
Figure 10. Open loop fre-
quency and phase re- sponse
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 15. Load transient
response
Figure 14. Line transient
response
7/16
L4962
8/16
Figure 16. Supply voltage
ripple rejection vs. frequency
Figure 17. Dropout voltage
between pin 7 and pin 2 vs.
current at pin 2
Figure 18. Dropout voltage
between pin 7 and 2 vs.
junction temperature
Figure 19. Efficiency vs.
output current
Figure 20. Efficiency vs.
output current
Figure 21. Efficiency vs.
output current
Figure 22. Efficiency vs.
output voltage
Figure 23. Efficiency vs.
output voltage
Figure 24. Maximum allow-
able power dissipation vs. am-
bient temperature (Powerdip)
L4962
APPLICATION INFORMATION
Figure 25. Typical application circuit
C
1
, C
6
, C
7
: EKR (ROE)
D
1
: BYW98 OR VISK340 (SCHOTTKY)
SUGGESTED INDUCTORS: (L
1
) = MAGNETICS 58120 - A2MPP - 45 TURNS - WIRE GAUGE 0.8mm (20AWG)
COGEMA 946043
OR U15, GUP15, 60 TURNS 1mm, AIR GAP 0.8mm (20 AWG) - COGEMA 969051.
Figure 26. P.C. board and component layout of the circuit of Fig. 25 (1 : 1 scale)
Resistor values for
standard output 7 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
L4962

L4962EH/A

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 5.0 to 40V Step-Down
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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