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BU90004GWZ Fiches technique(PDF) 6 Page - Rohm

No de pièce BU90004GWZ
Description  Output 1.0A High-efficiency Step-down Switching regulators with Built-in Power MOSFET
Download  14 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BU90004GWZ Fiches technique(HTML) 6 Page - Rohm

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Technical Note
6/14
BU90002GWZ, BU90003GWZ, BU90004GWZ, BU90005GWZ, BU90006GWZ
www.rohm.com
Target spec. ver.1.7
© 2011 ROHM Co., Ltd. All rights reserved.
2us
2us
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
Load current[mA]
VIN=2.7V
VIN=3.6V
VIN=4.2V
1.176
1.188
1.2
1.212
1.224
1
10
100
1000
Iout[mA]
VIN=2.7V
VIN=3.6V
VIN=4.2V
●Electrical characteristic curves (Reference data) – Continued
BU90003GWZ(1.2V OUTPUT)
Fig.21 Mode Change Response
MODE Low to High
Fig.19 PWM mode Operation Iout=100mA
80ns
LX
2V/div
IL
500mA/div
Vout
50mV/div
ac coupled
Fig.20 Mode Change Response
MODE High to Low
Fig.22 Efficiency vs Load current
VIN=3.6V PWM/PFM Auto Mode
Fig.23 Load regulation
PWM/PFM Auto mode
MODE
2V/div
Vout
50mV/div
ac coupled
LX
200mA/div
LX
200mA/div
Vout
50mV/div
ac coupled
MODE
2V/div


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