BD2270HFV
●Application Circuit
1. Configuration of 3.3V load switch
3.3V
VIN_SWITCH
VOUT_SWITCH
3.3V
Load
Technical Note
VCC GATE DISC
ON/OFF
AEN
GND
BD2270HFV
Fig.35 Configuration of 3.3V Load Switch
2. Configuration of 5V load switch
5V
5V
Load
VCC GATE DISC
ON/OFF
AEN
GND
BD2270HFV
Fig.36 Configuration of 5V Load Switch
A 5V load switch can be configured like the 3.3V load switch. However, if the external N-channel MOSFET is low VGSS, clamp it
with Zener diode and the like.
3. Configuration of low-voltage load switch
1.2V
3.3V
1.2V
Load
VCC GATE DISC
ON/OFF
AEN
GND
BD2270HFV
Fig.37 Configuration of Low-voltage Load Switch
Providing BD2270HFV drive power supply enables configuration of a low-voltage load switch.
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2009.04 - Rev.A