ESMT/EMP
Preliminary
EMP8021
600mA CMOS Linear Regulator
General Description
The EMP8021 low-dropout (LDO) CMOS linea...
ESMT/EMP
Preliminary
EMP8021
600mA CMOS Linear
Regulator
General Description
The EMP8021 low-dropout (LDO) CMOS linear
regulators feature low output voltage noise (63µV), low quiescent current (50µA), and fast transient response. It
Applications
g g g g g g Wireless handsets PCMCIA cards DSP core power Hand-held instruments Battery-powered systems Portable information appliances
guarantees delivery of 600mA output current, and supports preset output voltages ranging from 0.8V to 4.75V with 0.05V increment.
The EMP8021 is ideal for battery-powered applications by virtue of its low quiescent current consumption and its 1nA shutdown mode of logical operation. The
regulator provides fast turn-on and start-up time by using dedicated circuitry to pre-charge an optional external bypass capacitor. This bypass capacitor is used to reduce the output voltage noise without adversely affecting the load transient response. The
regulator is stable with small ceramic capacitive loads (2.2µF typical).
Features
g g g Miniature SOT-23-5 packages 600mA guaranteed output current 63µV RMS output voltage noise (10Hz to 100kHz) (Vout=3.3V, Cbypass=10nF) g g g g g g 580mV typical dropout at 600mA(Vout=3.3V) 270mV typical dropout at 300mA(Vout=3.3V) 50µA typical quiescent current 1nA typical shutdown mode Fast line and load transient response 140µs typical fast turn-on time (Vout=3.3V, Cbypass=10nF) g g g g 2.2V to 5.5V input range Stable with small ceramic output capacitors Over temperature an...