LMN200B01 Diodes Incorporated, LMN200B01 Datasheet - Page 8

• Manufacturer Part Number: LMN200B01
• Description: 200 mA LOAD SWITCH FEATURING PRE-BIASED PNP TRANSISTOR AND N-MOSFET
• Manufacturer: Diodes Incorporated

DS30651 Rev. 7 - 2
Application Details
PNP Transistor (DDTB142JU) and N-MOSFET
(DSNM6047) with gate pull-down resistor integrated
as one in LMN200B01 can be used as a discrete
entity for general purpose applications or as an
integrated circuit to function as a Load Switch. When
it is used as the latter as shown in Fig 19, various
input voltage sources can be used as long as it does
not exceed the maximum ratings of the device.
These devices are designed to deliver continuous
output load current up to a maximum of 200 mA. The
MOSFET Switch draws no current, hence loading of
control circuit is prevented. Care must be taken for
higher levels of dissipation while designing for higher
load conditions. These devices provide high power
and also consume less space. The product mainly
helps in optimizing power usage, thereby conserving
battery life in a controlled load system like portable
battery powered applications. (Please see Fig. 20
for one example of a typical application circuit used
in conjunction with voltage regulator as a part of a
power management system)
Vin
GND
U1
Control Logic
Circuit (PIC,
Comparator
etc)
OUT1
Typical Application Circuit
5v Supply
Control
Vin
www.diodes.com
Vin
Control
1
2
3
Fig. 20
U3
8 of 10
E_Q1
G_Q2
D_Q2
LNM200B01
Load Switch
Diodes Inc.
10K
R1
C_Q1
B_Q1
S_Q2
E
Q1
DDTB142JU
Fig. 19 Circuit Diagram
R2
6
5
4
Gnd
Vout
B
470
D
PNP
DSNM6047
Q2
C
IN
Voltage Regulator
U2
G
NMOS
S
37K
R3
OUT
Vout
Point of
Load
LMN200B01
LOAD