EUP3511 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – 1 AMP CURRENT LIMITED LOAD SWITCH

EUP3510/3511
1 Amp Current Limited Load Switch
DESCRIPTION
The EUP3510/3511 are Current Limited P-channel
MOSFET power switches designed for high-side load-
switching applications. The internal current-limiting
circuit protects the input supply against large output
short circuit current which may cause the supply to fall
out of regulation. The current limit threshold is
programmed with an external resistor from SET Pin to
ground. The quiescent supply current is typically 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 EUP3510/3511 are available in 5 pin SOT-23
packages.
FEATURES
z 2.4V to 5.5V Input voltage range
z Programmable Over Current Threshold
z Fast Transient Response:
z Low Quiescent Current
- 8µA Normal Operation
- 1µA Max in Shutdown
z 115mΩ typical R_DS(ON)
z Only 1.8V needed for ON/OFF Control
- EUP3510 ENB Active Low
- EUP3511 EN Active High
z Under-Voltage Lockout
z Thermal Shutdown
z 4kV ESD Protection
z Available in SOT23-5 Package
z RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
z Peripheral ports
z Notebook computers
z Personal communication devices
z Hot swap supplies
Typical Application Circuit
DS3510/3511 Ver1.0 Dec. 2008
Figure 1.
1