General Description£º
The EMP896X low-dropout (LDO) CMOS linear regulators, consisting of EMP8965, EMP8966, and EMP8968, feature ultra-high power supply rejection ratio (75dB at 1kHz), low output voltage noise (30¦ÌV), low dropout voltage (270mV), low quiescent current (110¦ÌA), and fast transient response. It guarantees delivery of 600mA output current, and supports preset (1.2V~3.3V with 0.1V increment, except for 1.85V and 2.85V) as well as adjustable (1.2V to 5.0V) output voltage versions.
The EMP896X 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 high power supply rejection ratio of the EMP896X holds well for low input voltages typically encountered in battery- operated systems. The regulator is stable with small ceramic capacitive loads (2.2¦ÌF typical).
Additional features include regulation fault detection, bandgap voltage reference, constant current limiting and thermal overload protection. Available in miniature 8-pin MSOP and DFN (2x2) package options. A 5-pin SOT-25 package option is also offered to provide additional flexibility for different applications.
EMP products are Pb-free and RoHS compliant.
Features£º
Miniature SOT-25 and MSOP/DFN(2x2) packages
600mA guaranteed output current
75dB typical PSRR at 1kHz
30¦ÌV RMS output voltage noise (10Hz to 100kHz)
270mV typical dropout at 600mA
110¦ÌA typical quiescent current
1nA typical shutdown mode
Fast line and load transient response
80¦Ìs typical fast turn-on time
2.5V to 5.5V input range
Stable with small ceramic output capacitors
Over temperature and over current protection
¡À2% output voltage tolerance
Applications£º
Wireless handsets
PCMCIA cards
DSP core power
Hand-held instruments
Battery-powered systems
Portable information appliances
Elite MicroPower Inc. reserves the right to make changes to improve reliability or manufacturability without notice, and customers are advised to obtain the latest version of relevant information prior to placing orders.
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