EC2960 Datasheet, PDF (1/13 Pages) E-CMOS Corporation – Source and Shink 1.5A/2A Fast Transient Response Line Regulator

Source and Shink 1.5A/2A Fast Transient
Response Line Regulator
EC2960
General Description
Features
The EC2960/EC2960A linear regulator is designed to
provide a regulated voltage with bi-direction output current
for DDRSDRAM termination voltage. The EC2960 integrates
two power transistors to source or sink load current up to
1.5A/2A.It also features internal soft-start, current-limit,
thermal shutdown and enable control functions into a single
chip.The internal soft-start controls the rising rate of the
output voltage to prevent inrush current during start-up.
The current-limit circuit detects the output current and
limits the current during short-circuit or current overload
conditions. The on-chip thermal shutdown provides
thermal protection against any combination of overload
that would create excessive junction temperatures.
The output voltage of EC2960/EC2960A is regulated to track
the voltage on VREF pin. An proper resistor divider connected
to VIN, GND, and VREF pins is used to provide a half voltage
of VIN to VREF pin. In addition, connect an external ceramic
capacitor and a open-drain transistor to VREF pin for external
soft-start and shutdown control.
Pulling and holding the voltage on VREF below the enable
voltage threshold shuts down the output. The output of
EC2960/EC2960A will be high impedance after being
shutdown by VREF or the thermal shutdown function.
● Provide Bi-direction Output Currents
● Sourcing and Sinking Current up to 1.5A/2A Built-in
Soft-Start
● Power-On-Reset Monitoring on VCNTL and VIN
pins
● Fast Transient Response
● Stable with Ceramic Output Capacitors ±20mV High
System Output Accuracy over Load and Temperature
Ranges
● Adjustable Output Voltage by External Resistors
● Current-Limit Protection
● On-Chip Thermal Shutdown
● Shutdown for Standby or Suspend Mode
●SimpleSOP-8 with Exposed Pad(SOP8-EP)
Packages
● Lead Free and Green Devices Available(RoHS
Compliant)
Applications
● DDRII/III SDRAM Termination Voltage
● Motherboard and VGA Card Power Supplies
● Setop Box
● SSTL-2/3 Termination Voltage
Type Application Circuit
E-CMOS Corp. (www.ecmos.com.tw)
Figure 1. Type Application Circuit of EC2960/EC2960A
Page 1 of 13
4H19N-Rev.F00F