bd9180gul ROHM Co. Ltd., bd9180gul Datasheet - Page 4

• Manufacturer Part Number: bd9180gul
• Description: 1ch High Efficiency Step-down Switching Regulator
• Manufacturer: ROHM Co. Ltd.

●Characteristics data【BD9180GUL】
2.0
1.5
1.0
0.5
0.0
1.94
1.92
1.90
1.88
1.86
1.84
1.82
2.2
2.1
2.0
1.9
1.8
0
-30
230
220
210
200
190
180
170
Ta=25 ℃
Io=0mA
2
VCC=3.3V, V
Ta=25 ℃
-30
VCC=3.3V
1
INPUT VOLTAGE:V
Fig.4 Vcc-VOUT
Fig.10 Vcc-Fosc
0
Fig.7 Ta-VOUT
TEMPERATURE:Ta[℃]
INPUT VOLTAGE:V
Fig.13 Ta-Icc
3
0
2
OUT
TEMPERATURE:Ta[℃]
=1.875V, Io=0mA
30
3
30
V
4
OUT
CC
CC
=1.875V
4
[V]
60
[V]
60
5
5
90
90
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
2.0
1.5
1.0
0.5
0.0
300
250
200
150
100
100
50
Fig.14 Input Voltage – Output Current
90
80
70
60
50
40
30
20
10
0
0
Fig.11 Ta-NMOS-PMOS FET Ron
-30
0
2
1
VCC=3.3V
Ta=25 ℃
Io=0mA
SLLM to PWM
VCC=3.6V
Ta=25 ℃
2.5
at mode change point
VCC=3.3V
0.2
OUTPUT CURRENT:I
INPUT VOLTAGE:VCC [V]
TEMPERATURE:Ta [℃]
0
EN VOLTAGE:VEN[V]
Fig.5 EN-VOUT
3
Fig.8 Efficiency
10
V
0.4
PMOS
OUT
3.5
4/14
Ta=25 ℃
30
=1.875V
4
0.6
100
V
OUT
OUT
4.5
NMOS
60
[mA]
=1.875V
0.8
5
1000
90
5.5
1
2.0
1.5
1.0
0.5
0.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
0.0
-30
-30
VCC=3.3V
Ta=25 ℃
V
VCC=3.3V
OUT
VCC=3.3V
=1.875V
0.2
OUTPUT CURRENT:I
Fig.6 IOUT-VOUT
0
TEMPERATURE:Ta[℃]
TEMPERATURE:Ta[ ℃ ]
0
Fig.12 Ta-V
Fig.9 Ta--Fosc
0.4
30
30
0.6
EN
OUT
60
60
0.8
[A]
1.0
90
90