Preliminary
EUP3510
Current Limited Load Switch
DESCRIPTION
The EUP3510 is a Current Limited P-channel MOSFET
power switch designed for high-side load-switching
applications. An integrated current-limiting circuit
protects the input supply against large currents which
may cause the supply to fall out of regulation. It can be
used to control loads that require up to 1A. In order to
fit different application, current limit threshold is
programmed with a resistor from SET Pin to ground.
The quiescent supply current is typically a low 8µA,
making the device ideal for portable battery-operated
equipment. In shutdown mode, the supply current
decreases to less than 0.1µA.
Additional features include thermal shutdown to
prevent catastrophic switch failure from high current
loads, under-voltage lockout (UVLO) to ensure that the
device remains off unless there is a valid input voltage
present.
The EUP3510 is available in a 5 pin SOT-23 package.
FEATURES
2.4V to 5.5V Input voltage range
Programmable over current threshold
Fast transient response:
Low quiescent current
- 8µA typical
- 1µA max with shutdown
135m typical R
DS(ON)
Only 1.8V needed for ON/OFF Control
Under-Voltage Lockout
Thermal shutdown
Temp range -40 to 85°C
Available in SOT23-5 package
RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
Peripheral ports
Notebook computers
Personal communication devices
Hot swap supplies
Typical Application Circuit
Figure 1.
DS3510 Ver0.1 Mar. 2008
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
