YB1901
2.0A High-Side Power Switch with Flag
Pin Configuration
GND
VIN
VIN
OCB
GND
EN
1
2
3
SOT23-5
5
4
VOUT
1
2
3
4
SOP8 or MSOP8
8
7
6
5
VOUT
VOUT
VOUT
OCB
VIN
EN
Figure 2: Pin Configuration
Pin Description
Table 1
Name
EN
GND
OCB
VIN
VOUT
Description
Pull low to enable the chip, active high (active low is optional).
Ground pin.
Open-drain fault flag. Connect a 100KΩ resistor to VIN.
Input supply. Bypass with a capacitor to GND.
Output voltage. Bypass with a capacitor to GND.
Ordering Information
Table 2
Order Number
YB1901ST25H
YB1901SPX8H
YB1901MXX8H
YB1901ST25L
YB1901SPX8L
YB1901MXX8L
Enable
Active High
Active High
Active High
Active Low
Active Low
Active Low
Package Type
SOT23-5
SOP-8
MSOP-8
SOT23-5
SOP-8
MSOP-8
Supplied As
3000 Units Tape & Reel
2500 Units Tape & Reel
2500 Units Tape & Reel
3000 Units Tape & Reel
2500 Units Tape & Reel
2500 Units Tape & Reel
Package Marking
Y90H
第一行
Y90H
第二行
SPX8
Y90HM8
Y90L
第一行
Y90L
第二行
SPX8
Y90LM8
YB1901 Rev.1.2
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2
YOBON [ YOBON TECHNOLOGIES,INC. ]
