EC3121 Datasheet, PDF (1/7 Pages) E-CMOS Corporation – 300mA 2CH Low Dropout Voltage Linear Regulators

300mA 2CH Low Dropout Voltage
Linear Regulators
EC3121
General Description
The EC3121 is a low noise and high accuracy,
high ripple rejection ratio, low dropout, dual CMOS
LDO voltage regulators with enable function. The EN
function allows the output of each regulator to be
turned off independently, resulting in greatly reduced
power consumption.
The current limit of EC3121 is over 350mA per
channel and also operates as a short protection for
the output current limiter. The output voltage for each
regulator is set independently by metal trimming.
Features
 Input Voltage Range: 2.5V to 6.0V
 Varied Fixed Output Voltage Combinations
 150mV Dropout at 100mA Output Current
(V_OUT≧2.8V)
 Low Quiescent Current
 Standby Current ：1uA(Typ.)
 Current Limit and Short Current Protections
 Fast Transient Response
 Low ESR Capacitor Compatible(X7R,X5R)
 Available in the 6-Pin Pb-Free SOT23-6L Packages
The EC3121 comes with low design cost and
outstanding output stability and its compatibility of
working with low ESR ceramic capacitors is
undoubted. This high level output stability is
maintained even during frequent load fluctuations, due
to the excellent transient response performance and
high PSRR achieved across a broad range of
frequency, so these ICs are suitable for hand-held
communication equipment power supply.
Function Block Diagram
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 7
5D14N-Rev.F004