ISL8510IRZ View Datasheet(PDF) - Intersil
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ISL8510IRZ Datasheet PDF : 21 Pages
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ISL8510
Typical Performance Curves Circuit of Figure 2. VIN = 12V, VIN_LDO = VOUT = 3.3V, IOUT = 1A, VLDO = 1.2V, ILDO = 450mA,
TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. (Continued)
5.1
6
5.0
5
4.9
4
4.8
50mA LOAD
3
4.7
4.6
2
NO LOAD
4.5
1
4.4
0
50
100
150
200
I VCC (mA)
FIGURE 15. VCC LOAD REGULATION
0
0
5
10
15
20
25
30
VIN (V)
FIGURE 16. VCC REGULATION WITH VIN
1.30
1.28
1.26
7VIN
1.24
1.22
12VIN
1.20
1.18
1.16
1.14
1.12
25VIN
1.10
0
100 200 300 400 500 600 700
OUTPUT LOAD (mA)
FIGURE 17. LDO vs LOAD, 500kHz, VIN LDO = 3.3V
LX 5V/DIV
VOUT RIPPLE
20mV/DIV
IL 0.2A/DIV
LDO RIPPLE
20mV/DIV
FIGURE 18. STEADY STATE OPERATION AT NO LOAD,
20µs/DIV
LX 5V/DIV
VOUT RIPPLE
20mV/DIV
IL 0.5A/DIV
LDO RIPPLE
20m/DIV
FIGURE 19. STEADY STATE OPERATION AT FULL LOAD,
2µs/DIV
11
FN6516.2
December 15, 2008
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