BD95500MUV Datasheet, PDF (4/21 Pages) Rohm – Switching Regulator with MOSFET for DDR-SDRAM Cores

BD95500MUV
●Reference Data
2.500
2.498
2.496
2.494
2.492
2.490
-10 10 30 50 70 90
Ta(_℃)
Fig.1 Ta vs VREG
2.20
2.15
2.10
2.05
2.00
1.95
1.90
-10 10
Sweep up
Sweep down
30
50
70
90
Ta(_℃)
Fig.4 Ta vs UVLO (VREG)
3
2
1
0
-1
-2
-3
-10 10 30 50 70 90
Ta _(℃)
Fig.7 Ta vs VOUT Offset
100
80
SLLM
60
Forced
40
Continuous
20
0
0.001
0.01
0.1
1
10
Io(mA)
Fig.10 Io vs Efficiency
(VIN=7V, VOUT=1.5V)
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4.30
4.25
Sweep up
4.20
4.15
4.10
Sweep down
4.05
4.00
-10 10 30 50 70 90
Ta(_℃)
Fig.2 Ta vs UVLO (VCC)
2.20
2.15
Sweep up
2.10
2.05
Sweep down
2.00
1.95
1.90
-10 10 30 50 70 90
Ta(_℃)
Fig.5 Ta vs EN Threshold
54
52
50
48
46
-10 10
ILIM=0.5V
30 50 70 90
Ta (_℃)
Fig.8 Ta vs Current Limit
Threshold
100
80
SLLM
60
Forced
40
Continuous
20
0
0.001
0.01
0.1
1
10
Io(mA)
Fig.11 Io vs Efficiency
(VIN=12V, VOUT=1.5V)
4/20
Technical Note
2.70
2.65
Sweep up
2.60
2.55
2.50
Sweep down
2.45
2.40
-10 10 30 50 70 90
Ta(_℃)
Fig.3 Ta vs UVLO (VIN)
2.8
2.4
2.0
1.6
1.2
0.8
Left: 100℃
0.4
Middle: 25℃
Right: -10℃
0.0
0
1.5
3
4.5
6
Vcc(V)
Fig.6 Vcc vs VREG
400
360
320
280
240
200
0
Io=2A
Io=0A
5
10
15
20
25
VIN(V)
Fig.9 VIN vs f
100
80
SLLM
60
Forced
40
Continuous
20
0
0.001
0.01
0.1
1
10
Io(mA)
Fig.12 Io vs Efficiency
(VIN=19V, VOUT=1.5V)
2010.05 - Rev.C