
www.fairchildsemi.com
Rev. 1.5
2001 Fairchild Semiconductor Corporation
Features
1% output voltage accuracy
Only 10VRMS noise from 300Hz to 100kHz
Uses low ESR ceramic or Tantalum output capacitor to
minimize noise and output ripple
Only 90A ground current at 100mA load
Ripple rejection up to 70dB at 1kHz, 60dB at 1MHz
Excellent line and load transient response
Guaranteed to 100mA output current
Industry standard five lead SOT-23-5 packages
Fixed 2.8V, 3.0V, 3.3V,3.6V, 4.7V, 5.0V, output voltage
options
Metal mask option available for custom voltages between
2.5V and 8V
Applications
Cellular phones
Wireless communicators
PDAs / palmtops / organizers
Battery powered portable electronics
Description
The ILC7071 is a 100mA, Ultra Low Noise, Low Dropout
(LDO) linear regulator, designed and processed in Impala’s
proprietary
CMOS
process
technology
This
process
combines the best CMOS features of low quiescent current,
small size and low dropout voltage with the best bipolar
features of high ripple rejection, ultra low noise and power
handling capability. The ILC7071 offers a quiescent current
of less than 100A, a logic level enable (regulator on/off) pin,
and a low dropout voltage of 50mV at 10mA. With better than
70dB (1kHz) of ripple rejection, ultra low noise of 10VRMS
and 1% output voltage accuracy, the ILC7071 sets a new
standard in linear regulators for communications and
personal electronics applications.
The ILC7071 is designed to operate with small, low cost,
ceramic capacitors and is stable over a wide range of ESR
values. In addition to the output capacitor, the ILC7071
requires only a 1F input capacitor. The enable pin can be
tied to VIN for easy device layout. The ILC7071 is available
in a number of fixed output voltages ranging from 2.5V to
8V. An adjustable version will be available shortly.
The ILC7071 is ideally suited for use in small size cordless
and cellular handsets as well as many other low battery
powered electronic devices. Please contact Fairchild for
samples and application information.
Typical Applications
5
4
3
2
1
ILC7071AIM5
ON/OFF
C
IN
+
V
OUT
C
OUT
C
BYPASS
-
ILC7071
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDO
Regulator
2001 Fairchild Semiconductor Corporation