50/100mA SOT-23 CMOS RF LDO™ Regulators
Pin Description ILC7081/81-xx (fixed voltage version)
Pin
Pin Name
Pin Description
Number
1
2
3
4
VIN
Connect direct to supply
Ground pin. Local ground for CNOISE and COUT
GND
.
ON/OFF
CNOISE
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 CNOISE directly to the main
power ground plane.
5
VOUT
Output Voltage. Connect COUT between this pin and GND (pin 2)
Pin Description ILC7081/81-ADJ (adjustable voltage version)
Pin
Pin Name
Pin Description
Number
1
2
3
4
VIN
GND
Connect direct to supply
Ground pin. Local ground for CNOISE and COUT
.
ON/OFF
VADJ
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.
5
VOUT
Output Voltage. Connect COUT between this pin and GND (pin 2)
Pin Package Configurations
VOUT
VADJ
4
VOUT
CNOISE
5
SOT23-5
5
4
SOT23-5
ILC7080-ADJ
ILC7081-ADJ
ILC7080-xx
ILC7081-xx
1
2
3
1
2
3
VIN
VIN
GND
ON
GND
ON
OFF
OFF
Impala Linear Corporation
ILC7080/81 1.1
www.impalalinear.com
(408) 574-3939
Sept. 1998
2
IMPALA [ Impala Linear Corporation ]
