BD8622EFV_09 ROHM [Rohm], BD8622EFV_09 Datasheet - Page 7

• Manufacturer Part Number: BD8622EFV_09
• Description: Built-in 1ch FET Light Load Type DC / DC converters
• Manufacturer: ROHM [Rohm]

●Operation description
© 2009 ROHM Co., Ltd. All rights reserved.
BD8622EFV
www.rohm.com
Enable control
The device can be controlled ON/OFF by EN terminal (16 pin) voltage.
An internal circuit starts when VEN reaches 1.1V.
When standing up of VIN is too steep (1msec or less), a defective start might be caused according to the state of Pascon
between GND substrate pattern and power supply-when the terminal EN is short-circuited to the terminal VIN and it is used.
Output setting voltage
EN terminal
SS terminal
Fig.2 ON/OFF transition wave form in EN controlling
V
V
V
V
V
V
SSCLM
ENL
ENH
SSTH
V
EN
SS
O
0
0
0
t
SS
7/15
Technical Note
2009.05 - Rev.A