50/100mA SOT-23 CMOS RF LDO™ Regulators
Pin Description ILC7081/81-xx
(fixed voltage version)
Pin
Number
1
2
3
4
Pin Name
V
IN
GND
ON/OFF
C
NOISE
Pin Description
Connect direct to supply
Ground pin. Local ground for C
NOISE
and C
OUT
.
By applying less than 0.4V to this pin the device will be turned off.
Optional noise bypass capacitor may be connected between this
pin and GND (pin 2). Do not connect C
NOISE
directly to the main
power ground plane.
Output Voltage. Connect C
OUT
between this pin and GND (pin 2)
5
V
OUT
Pin Description ILC7081/81-ADJ
(adjustable voltage version)
Pin
Number
1
2
3
4
5
Pin Name
V
IN
GND
ON/OFF
V
ADJ
V
OUT
Pin Description
Connect direct to supply
Ground pin. Local ground for C
NOISE
and C
OUT
.
By applying less than 0.4V to this pin the device will be turned off.
Voltage feedback pin to set the adjustable output voltage. Do not
connect a capacitor to this pin.
Output Voltage. Connect C
OUT
between this pin and GND (pin 2)
Pin Package Configurations
V
OUT
5
C
NOISE
SOT23-5
4
V
OUT
5
V
ADJ
SOT23-5
4
ILC7080-xx
ILC7081-xx
1
2
3
ILC7080-ADJ
ILC7081-ADJ
1
2
3
V
IN
GND
ON
OFF
V
IN
GND
ON
OFF
Impala Linear Corporation
ILC7080/81 1.1
(408) 574-3939
www.impalalinear.com
Sept. 1998
2
IMPALA [ Impala Linear Corporation ]
