Datasheet

0 10 20 30 40 50 60 70 80
V
IN
(V)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
T
ON
(us)
300k
200k
100k
0 0.1 0.2 0.3 0.4 0.5
LOAD (A)
60
65
70
75
80
85
90
95
100
EFFICIENCY (%)
V
IN
= 15V
V
IN
= 70V
V
IN
= 30V
V
IN
= 50V
0 0.5 1 1.5 2 2.5
0
2
4
6
8
10
12
14
16
18
20
V
FB
(V)
T
OFF
(Ps)
600k
400k
200k
100k
50k
LM5007
www.ti.com SNVS252F –SEPTEMBER 2003–REVISED MARCH 2013
Figure 7. LM5007 10V Output Efficiency Figure 8. Current Limit V
FB
vs T
OFF
R
CL
= 50k -600k
Figure 9. V
IN
vs T
ON
R
ON
= 100k, 200k, 300k
Table 2. 10V, 400mA Demo Board Bill of Materials
ITEM PART NUMBER DESCRIPTION VALUE
C1 C4532X7R2A105M CAPACITOR, CER, TDK 1µ, 100V
C2 C4532X7R1E156M CAPACITOR, CER, TDK 15µ, 25V
C3 C1206C104K5RAC CAPACITOR, CER, KEMET 0.1µ, 50V
C4 C1206C103K5RAC CAPACITOR, CER, KEMET 0.01µ, 50V
C5 C3216X7R2A104KT CAPACITOR, CER, TDK 0.1µ, 100V
D1 MURA110T3 DIODE, 100V, ON SEMI
L1 SLF7045T-101MR60-1 BUCK INDUCTOR, TDK 100µH
R1 CRCW12062003F RESISTOR 200K
R2 CRCW12061003F RESISTOR 100K
R3 CRCW12063011F RESISTOR 3.01K
R4 CRCW12061001F RESISTOR 1K
R5 CRCW12061R00F RESISTOR 1
U1 LM5007 REGULATOR, TI
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