BD9130EFJ Datasheet, PDF (4/15 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9130EFJ
●Characteristics data(Reference data) – Continued
Technical Note
1.2
Ta=25℃
1.1
VCC=PVCC
=EN
【VOUT=1.8V】
【SLLM^TM control
SW
VOUT=1.8V】
1
0.9
0.8
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE:VCC[V]
Fig.12 Vcc-Fosc
VOUT
VCC=3.3V
Ta=25℃
Io=0A
Fig.13 Soft start waveform
VOUT
VCC=3.3V
Ta=25℃
Fig.14 SW waveform Io=10mA
【PWM control
VOUT=1.8V】
VOUT
【VOUT=1.8V】
VOUT
【VOUT=1.8V】
IOUT
VCC=3.3V
Ta=25℃
VCC=3.3V
Ta=25℃
IOUT _VCC=3.3V
Ta=25℃
Fig.15 SW waveform Io=200mA
Fig. 16 Transient response
Io=1A→2A(10μs)
Fig.17 Transient response
Io=2A→1A(10μs)
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4/14
2009.05 - Rev.A