LMN400B01-7 Diodes Inc, LMN400B01-7 Datasheet - Page 8

• Manufacturer Part Number: LMN400B01-7
• Description: MCU LOAD SWITCH 400MA SOT-26
• Manufacturer: Diodes Inc

Specifications of LMN400B01-7

• Transistor Type: PNP Pre-Biased, N-Channel Pre-Biased
• Applications: Load Switch
• Voltage - Rated: 50V PNP, 60V N-Channel
• Current Rating: 400mA PNP, 115mA
• Mounting Type: Surface Mount
• Package / Case: SOT-26
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMN400B01DITR

DS30699 Rev. 5 - 2
Application Details
PNP Transistor (DDTB122LU) and N-MOSFET
(DSNM6047) with gate pull-down resistor integrated
as one in LMN400B01 can be used as a discrete
entity for general application or as an integrated
circuit to function as a Load Switch. When it is used
as the latter as shown in Fig 20, 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 400 mA. The MOSFET
Switch draws no current, hence loading of control
circuit is prevented. Care must be taken for higher
level of dissipation while designing for higher load
conditions. These devices provide high power and
also consumes 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. 21
for one example of a typical application circuit used
in conjunction with voltage regulator as a part of
power management system)
Vin
GND
U1
Control Logic
Circuit (PIC,
Comparator
etc)
OUT1
5V Supply
Typical Application Circuit
Control
Vin
1
2
3
www.diodes.com
U2
Fig 21
E_Q1
G_Q2
D_Q2
Load Switch
Vin
LMN400B01
Diodes Inc.
Control
8 of 10
C_Q1
B_Q1
S_Q2
10K
R1
6
5
4
E
Gnd
Vout
Q1
DDTB122LU
R2
Fig 20 : Circuit Diagram
B
220
D
PNP
DSNM6047
Q2
IN
U3
Voltage Regulator
C
G
NMOSFET
S
37K
OUT
R3
Point of
Load
Vout
LMN400B01
LOAD