LM2578AM/NOPB National Semiconductor, LM2578AM/NOPB Datasheet - Page 12

IC REG SIMPLE SWITCHER 8-SOIC

LM2578AM/NOPB

Manufacturer Part Number
LM2578AM/NOPB
Description
IC REG SIMPLE SWITCHER 8-SOIC
Manufacturer
National Semiconductor
Type
Step-Down (Buck), Step-Up (Boost), Inverting, Flybackr
Datasheet

Specifications of LM2578AM/NOPB

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Current - Output
750mA
Frequency - Switching
20kHz
Voltage - Input
2 ~ 40 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Primary Input Voltage
40V
No. Of Outputs
1
Output Current
750mA
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Msl
MSL 1 - Unlimited
Input Voltage Primary Max
40V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Power - Output
-
Other names
*LM2578AM
*LM2578AM/NOPB
LM2578AM
www.national.com
Typical Applications
(Continued)
V
V
V
I
f
R1 = 40 kΩ
R2 = 10 kΩ
FIGURE 15. Buck or Step-Down Regulator
o
osc
in
o
ripple
= 350 mA
= 5V
= 15V
= 50 kHz
= 10 mV
12
R3 = 0.15Ω
C1 = 1820 pF
C2 = 220 µF
C3 = 20 pF
L1 = 470 µH
D1 = 1N5818
00871106

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