EUP3502A Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 1.5A Line Switch with Low On-Resistance

EUP3502A
1.5A Line Switch with
Low On-Resistance
DESCRIPTION
The EUP3502A is a low dropout line switch IC with
ON/OFF control and output current protection which
integrates a P-channel MOSFET.
By connecting the EUP3502A to the output pin of a
step-down DC/DC converter, the EN pin controls ON/OFF
for each distribution switch to deliver power per
requirements and maximize total power efficiency. As a
result, the EUP3502A helps to extend battery life and
product operation time.
The EUP3502A contains a current limit and protection
circuit so these are not required externally unlike discrete
circuit solutions where MOSFETs and resistors are used.
When a low signal is input to the EN pin, the IC enters
shutdown mode. Even where a load capacitor is connected to
the output pin during shutdown, the electric charge stored at
the load capacitor is discharged through the internal switch.
As a result, the VOUT pin voltage falls quickly to the GND
level. The EUP3502A contains over current protection.
FEATURES
2.5V to 5.5V Input Voltage Range
100mΩ On Resistance
Low Shutdown Current：<1µA
ON/OFF Control Function
High Speed Auto Discharge Function
Operating Temperature Range: -40°C ~+85°C
Output Current Limit
Thermal Shutdown
RoHS Compliant and 100% Lead (Fb)-Free
Halogen-Free
APPLICATIONS
Portable Equipment
Laptop, Palmtops, Notebook Computers
LCD Monitor TV
Typical Application Circuit
DS3502A Ver 1.3 Apr. 2013
Figure 1.
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