
ILC7080/81
50/100mA SOT-23 CMOS RF LDO Regulators
Impala Linear Corporation
1
(408) 574-3939
www.impalalinear.com
Sept. 1998
ILC7080/81 1.1
The ILC7080/81 are 50 or 100mA low dropout (LDO) volt-
age regulators designed to provide a high performance
solution to low power systems.
The devices offer 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 devices have been optimized to meet the needs of
modern wireless communications design; Low noise, low
dropout, small size, high peak current, high noise immuni-
ty. The ILC7080/81 are designed to make use of low cost
ceramic capacitors while outperforming other devices that
require tantalum capacitors.
General Description
Features
Ultra low 1mV dropout per 1mA load
1% output voltage accuracy
Uses low ESR ceramic output capacitor to minimize
noise and output ripple
Only 100A ground current at 100mA load
Ripple rejection up to 85dB at 1kHz, 60dB at 1MHz
Less than 80VRMS noise at BW = 100Hz to 100kHz
Excellent line and load transient response
Over current / over temperature protection
Guaranteed up to 80/150mA output current
Industry standard five lead SOT-23 package
Fixed 2.85V, 3.0V, 3.3V, 3.6V, 4.7V, 5.0V and adjustable
output voltage options
Metal mask option available for custom voltages between
2.5 to 10V
Cellular phones
Wireless communicators
PDAs / palmtops / organizers
Battery powered portable electronics
Applications
Typical Circuit
ILC7080
ILC7081
V
OUT
V
IN
C
OUT
C
NOISE
SOT23-5
12
3
4
5
ON
OFF
Ordering Information (TA = -40°C to +85°C)
ILC7080AIM5-xx
50mA, fixed voltage
ILC7080AIM5-ADJ
50mA adjustable voltage
ILC7081AIM5-xx
100mA, fixed voltage
ILC7081AIM5-ADJ
100mA, adjustable voltage
Note: Fixed voltage options are defined by 2-digit code as shown in the
package markings information section of the datasheet.