LM2585SX-12/NOPB National Semiconductor, LM2585SX-12/NOPB Datasheet - Page 19
LM2585SX-12/NOPB
Manufacturer Part Number
LM2585SX-12/NOPB
Description
IC MULTI CONFIG 12V 3A TO-263-5
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Up (Boost), Flyback, Forward Converterr
Datasheet
1.LM2585T-ADJNOPB.pdf
(28 pages)
Specifications of LM2585SX-12/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
12V
Current - Output
3A
Frequency - Switching
100kHz
Voltage - Input
4 ~ 40 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
D²Pak, TO-263 (5 leads + tab)
For Use With
551011367-061 - BOARD WEBENCH LM2577,LM2585/87
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
*LM2585SX-12
*LM2585SX-12/NOPB
LM2585SX-12
*LM2585SX-12/NOPB
LM2585SX-12
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
1251548
By adding a small number of external components (as shown in
Figure
30), the LM2585 can be used to produce a regulated output voltage that is greater than
the applied input voltage. The switching waveforms observed during the operation of this circuit are shown in
Figure
31. Typical performance of this regulator is
shown in
Figure
32.
FIGURE 30. 12V Boost Regulator
1251549
A: Switch Voltage, 10 V/div
B: Switch Current, 2 A/div
C: Inductor Current, 2 A/div
D: Output Ripple Voltage,
100 mV/div, AC-Coupled
Horizontal: 2 μs/div
FIGURE 31. Switching Waveforms
1251550
FIGURE 32. V
Response to Load Current Step
OUT
19
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