ILC7083 Datasheet, PDF (1/16 Pages) Fairchild Semiconductor – 150mA SOT-23 Low Noise CMOS RF-LDO™ Regulator

www.fairchildsemi.com
ILC7083/ILC7084
150mA SOT-23 Low Noise CMOS RF-LDO™
Regulator
Features
• Ultra low 1mV dropout per 1mA load
• 3% output voltage accuracy
• Only 40µV_RMS noise
• Uses low ESR ceramic output capacitor to minimize noise
and output ripple
• Only 100µA ground current at 100mA load
• Ripple rejection up to 85dB at 1kHz, 60dB at 1MHz
• Excellent line and load transient response
• Over current / over temperature protection
• Guaranteed to 150mA output current
• Industry standard five lead SOT-23 package
• Fixed 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V, 5V output
voltage for ILC7083 and adjustable output voltage for
ILC7083/ILC7084
• Metal mask option available for custom voltages between
2.5V and 5.1V
Applications
• Cellular phones
• Wireless communicators
• PDAs / palmtops / organizers
• Battery powered portable electronics
Description
The ILC7083/ILC7084 is a 150mA low dropout (LDO)
voltage regulator designed to provide a high performance
solution to low power systems. The device offers a typical
combination of low dropout and low quiescent current
expected of CMOS parts, while uniquely providing the low
noise and high ripple rejection characteristics usually only
associated with bipolar LDO regulators.
The device has been optimized to meet the needs of modern
wireless communications design; Low noise, low dropout,
small size, high peak current, high noise immunity.
The ILC7083/ILC7084 is designed to make use of low cost
ceramic capacitors while outperforming other devices that
require tantalum capacitors.
As opposed to ILC7084, the ILC7083 has a built in output
capacitor discharge circuit active in shutdown mode. This
feature is necessary in applications where the output voltage
must decrease quickly to zero volt in shutdown mode.
Typical Applications
V_OUT
C_OUT
V_IN
C_IN
5 _SOT-23-5 4
ILC7083
1
2
3
C_NOISE
ON
OFF
REV. 1.0.9 1/28/03