Diodes LBN150B01 - Manual (Page 6)

Application Details
•
PNP Transistor and NPN Transistor integrated as one in
LBN150B01 can be used as a discrete entity for general purpose
applications or as a part of a circuit to function as a Load Switch.
When it is used as the latter as shown in Example Circuit
Schematic, various input voltage sources can be used as long as
they do not exceed the maximum rating of the device. These
devices are designed to deliver continuous output load current up
to maximum of 150 mA. The use of the NPN as a switch
eliminates the need for higher current required to overcome the
gate charge in the event an N-MOSFET is used. Care must be
taken for higher levels of dissipation while designing for higher
load conditions. These devices provide power on demand and
also consume less space. It mainly helps in optimizing power
usage, thereby conserving battery life in a controlled load system
like portable battery powered applications. (Please see Figure
below for one example of typical application circuit used in
conjunction with a voltage regulator as a part of power
management system).
R 2 2 2 0
V i n V o u t
Q 1 P N P
N P N
L O A D
R 1
1 0 K
BQ2 Control
CQ1
CQ2
BQ1
EQ2
EQ1
Q2
NEW PRODUCT
Example Circuit Schematic
Typical Application Circuit
U 1
V i n
O U T 1
G N D
V o u t
U 2
1
3
2
4
5
6
E _ Q 1
B _ Q 2
B _ Q 1
C _ Q 2
E _ Q 2
C _ Q 1
C o n t r o l
U 3
I N O U T
V i n
5 V S u p p l y
G N D
Load Switch
Voltage Regulator LBN150B01
Diodes, Inc.
Point of
Load
Control Logic
Circuit (PIC,
Comparator, etc)
Ordering Information
(Note 5)
DS30749 Rev. 4 - 2 6 of 7
www.diodes.com
LBN150B01
© Diodes Incorporated
Device Marking Code Packaging Shipping
LBN150B01-7 PM4 SOT-26 3000/Tape & Reel
Notes: 5. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
PM4
YM
PM4 = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: T = 2006
M = Month ex: 9 = September
Date Code Key
Year 2006 2007 2008 2009 2010 2011 2012
Code T U V W X Y Z
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D