Impala Linear Corporation
ILC7071
100mA SOT-23-5 Ultra Low Noise
CMOS RF-LDO™ Regulator
General 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 com-
bines the best CMOS features of low quiescent current,
small size and low dropout voltage with the best bipolar fea-
tures of high ripple rejection, ultra low noise and power han-
dling capability. The ILC7071 offers a quiescent current of
less than 100µA, 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
10µVRMS 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 1µF input capacitor. The enable pin can be
tied to V
IN
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 Impala for
samples and application information.
Features
• 1% output voltage accuracy
• Only 10µV
RMS
noise from 300Hz to 100kHz
• Uses low ESR ceramic or Tantalum output capacitor to
minimize noise and output ripple
• Only 90µA 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
Typical Circuit
V
OUT
5
4
C
BYPASS
Ordering Information
(T
A
= -40°C to +85°C)
C
OUT
ILC7071AIM5
ILC7071AIM5-X
100mA, fixed voltage, SOT
-
23 package
1
2
3
ON/OFF
+
C
IN
Note: Fixed voltage options are defined by 2-digit code as shown
in the package markings information section of the data sheet.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
1
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDO™ Regulator
Preliminary
Pin Description ILC7071 (fixed voltage version)
Pin Number
1
2
3
4
5
Pin Name
V
IN
GND
On/Off
C
NOISE
V
OUT
Connect Directly to Supply
Ground pin. Local ground for C
OUT
On > 1.0V, off < 0.4V. Can be connected to V
IN
Noise Bypass Capacitor. Do Not Pin Connect Directly to GND
Regulator Output, Connect C
OUT
between this pin and the GND (pin 3)
Pin Description
Pin Package Configurations
5
4
ILC7071AIM5
1
2
3
Parameter
Input Voltage ILC7071
ON/OFF Input Voltage
Output Current
Output Voltage
Package Power Dissipation
Maximum Junction Temp. Range
Storage Temperature
Operation Ambient Temperature
Symbol
V
IN
V
ON/OFF
I
OUT
V
OUT
P
D
T
J(MAX)
T
STG
T
AMB
Ratings
-0.3 to 9V
-0.3 to VIN
Short Circuit Protected
-0.3 to VIN +0.3
TBD
-40 to +125
-40to +125
-40 to +85
Units
V
V
mA
V
mW
°C
°C
°C
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
2
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDO™ Regulator
Preliminary
Electrical Characteristics ILC7071
Unless otherwise specified, all limits are at T
A
= 25°C, V
IN
= V
OUT(NOM)
+ 1V, I
OUT
= 1mA, C
OUT
= 1µF, V
ON/OFF
= 2V
Parameter
Input Voltage Range
Output Voltage Accuracy
Line Regulation
∆V
OUT/
(V
OUT
*∆V
IN
)
∆V
IN
V
OUT
V
DO
V
OUT
(NOM) + < 8V
I
OUT
= 10µa
I
OUT
= 10mA
I
OUT
= 20mA
I
OUT
= 100mA
I
OUT
= 0mA
I
OUT
= 10mA
I
OUT
=100mA
V
ON/OFF
= 0V
High = Regulator On
Low = Regulator Off
V
ON/OFF
0.6V Regulator OFF
V
ON/OFF
2V Regulator ON
V
OUT
Š 0.95V
OUT (NOM)
, t
PW
Symbol
V
IN
Conditions
Typ
2.5-8
±1
0.007
0.1
50
70
235
66
67
90
0.1
1.5
0.6
0.3
1
120
Units
V
%
%/V
Dropout Voltage
(Note 3)
mV
Ground Pin Current
Shutdown (OFF) Current
ON/OFF Input Voltage
ON/OFF Pin Input Current
(Note 5)
Peak Output Current
(Note 4)
I
GND
I
ON/OFF
V
ON/OFF
I
IN ON/OFF
I
OUT (peak)
µA
µA
V
µA
mA
= 2ms
Output Noise Voltage (RMS)
e
N
∆V
OUT
/∆V
IN
∆V
OUT(line)
∆V
OUT(load)
I
SC
BW = 300Hz to 50kHz, C
IN
= 1µF
C
NOISE
= 0.01µF, C
OUT
= 1.0µF,
I
OUT
= 10mA
C
OUT
= 1.0µF
I
OUT
= 100mA
V
IN
: V
OUT (NOM)
+ 1V to V
OUT
(NOM) + 2V, tr/tf = 2µs; I
OUT
= 80mA
I
OUT
: 1mA to 100mA; tr,5µS
V
OUT
= 0V
Freq = 1kHz
Freq = 10kHz
Freq = 1MHz
TBD
70
50
65
14
40
200
1.5
µVrms
Ripple Rejection
dB
mv
mV
mA
kΩ
Dynamic Line Regulation
Dynamic Load Regulation
Short Circuit Current
Resistance Shutdown Discharge
Note1:
Absolute maximum ratings indicate limits which when exceeded may result in damage to the component. Electrical specifications do not apply
when operating the device outside of its rated operating conditions.
Note 2:
Specified Min/Max limits are production tested or guaranteed through correlation based on statistical control methods. Measurements are
taken at constant junction temperature as close to ambient as possible using low duty pulse testing.
Note 3:
Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the nominal value measured with a 1V differential.
Note 4:
Guaranteed by design
Note 5:
The device’s shutdown pin includes a 2MΩ internal pull down resistor connected to ground.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
3
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDO™ Regulator
Preliminary
SOT-23-5 Package Markings
ILC7071AIM5-xx
Output Voltage (V)
2.8
3.0
3.3
3.6
4.7
5.0
Grade
A
A
A
A
A
A
Order Information
ILC7071AIM5-28
ILC7071AIM5-30
ILC7071AIM5-33
ILC7071AIM5-36
ILC7071AIM5-47
ILC7071AIM5-50
Supplied As:
3K Units on Tape and Reel
3K Units on Tape and Reel
3K Units on Tape and Reel
3K Units on Tape and Reel
3K Units on Tape and Reel
3K Units on Tape and Reel
*NOTE: First two characters identify the product and the last two characters identify the datecode
Package Outline Dimensions
Dimensions shown in inches and (mm)
5-Lead plastic surface mount (SOT-23-5)
0.122 (3.10)
0.106 (2.70)
0.071 (1.80)
0.055 (1.40)
0.118 (3.00)
0.102 (2.60)
PIN 1
0.037 (0.95) BSC
0.055 (1.40)
0.0393 (1.0)
0.057 (1.45)
0.035 (0.90)
10°
0°
0.0217 (0.55)
0.0138 (0.35)
ILC7071 fig. 3
0.0059 (0.15)
0.0019 (0.05)
0.019 (0.50)
0.0138 (0.35)
SEATING
PLANE
0.0078 (0.2)
0.0031 (0.08)
Devices sold by Impala Linear Corporation are covered by the warranty and patent indemnification provisions appearing in
its Terms of Sale only. Impala Linear Corporation makes no warranty, express, statutory, implied, or by description regard-
ing the information set forth herein or regarding the freedom of the described devices from patent infringement. Impala
Linear Corporation makes no warranty of merchantability or fitness for any purpose. Impala Linear Corporation reserves
the right to discontinue production and change specifications and prices at any time and without notice.
This product is intended for use in normal commercial applications. Applications requiring an extended temperature
range, unusual environmental requirements, or high reliability applications, such as military and aerospace, are specif-
ically not recommended without additional processing by Impala Linear Corporation.
Impala Linear Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an
Impala Linear Corporation product. No other circuits, patents, licenses are implied.
Life Support Policy
Impala Linear Corporation’s products are not authorized for use as critical components in life support devices or systems.
1.
Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b)
support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in
the labeling, can be reasonably expected to result in a significant injury to the user.
2.
A critical component is any component of a life support dice or system whose failure to perform can be reasonably expect-
ed to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
4
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