ILC7280 Datasheet, PDF (1/9 Pages) Impala Linear Corporation – MICROPOWER DUAL 150MA CMOS RF LDO REGULATORS WITH 75DB RIPPLE REJECTION

www.fairchildsemi.com
ILC7280
Micropower Dual 150mA CMOS RF LDO™
Regulators
Features
• Low Power Consumption
• 150mV Dropout at 150mA
• 1% Output Voltage Accuracy
• Requires only 0.47µF Output Capacitor
• Only 135µA Ground Current at 150mA load
• 50µV_RMS Noise at BW = 300Hz to 50kHz
• Excellent Line and Load Transient Response
• Over Current/Over Temperature Protection
• 8-pin MSOP package
• Voltage Options Available: 3.3/3.3V, 3.0/3.0V, 3.0/2.8V,
3.0/2.5V, 2.8/2.8V, 2.85/2.85V. Other Custom Values
available upon request.
• Minimum External Components
Applications
• Cellular Phones, pagers and wireless headsets
• Palmtops, organizers, PDAs and portable electronics
• Battery powered portable appliances and equipment
• Remote data accumulation and instrumentation
Block Diagram
General Description
The ILC7280 is two independent 150mA low dropout
(LDO)voltage regulators in an 8-pin MSOP package. Each
regulator output is independently short circuit protected and
has independent enable lines. The device offers a unique
combination of low dropout voltage and low quiescent
current offered by CMOS technology as well as the low
noise and good ripple rejection characteristics of bipolar
LDO regulators.
The ILC7280 is available in a space saving MSOP-8
package.
V_INA
V_OUTA
EN_A
*C_NOISE
EN_B
Current Limit
Thermal Shutdown
Bandgap
Reference
Current Limit
Thermal Shutdown
GND
V_INB
*Optional
V_OUTB
REV. 1.0.5 6/3/02