LP2966IMM-1833SLASHNO.A中文资料德州仪器数据手册PDF规格书

1FEATURES

2• Ultra Low Drop-Out Voltage

• Low Ground Pin Current

• <1μA Quiescent Current in Shutdown Mode

• Independent Shutdown of Each LDO Regulator

• Output Voltage Accuracy ±1%

• Ensured 150mA Output Current at Each

Output

• Low Output Noise

• Error Flags Indicate Status of Each Output

• Available in VSSOP-8 Surface Mount Package

• Low Output Capacitor Requirements (1μF)

• Operates with Low ESR Ceramic Capacitors in

Most Applications

• Over Temperature/Over Current Protection

• -40°C to +125°C Junction Temperature Range

APPLICATIONS

• Cellular and Wireless Applications

• Palmtop/Laptop Computer

• GPS Systems

• Flat Panel Displays

• Post Regulators

• USB Applications

• Hand Held Equipment and Multimeters

• Wireless Data Terminals

• Other Battery Powered Applications

KEY SPECIFICATIONS

• Dropout Voltage: Varies Linearly with Load

Current. Typically 0.9 mV at 1mA Load Current

and 135mV at 150mA Load Current

• Ground Pin Current: Typically 300μA at 1mA

Load Current and 340μA at 100mA Load

Current (with One Shutdown Pin Pulled Low)

• Shutdown Mode: Less than 1μA Quiescent

Current when Both Shutdown Pins are Pulled

Low

• Error Flag: Open Drain Output, Goes Low

when the Corresponding Output Drops 10%

Below Nominal

• Precision Output Voltage: Multiple Output

Voltage Options Available Ranging from 1.8V

to 5.0V with an Ensured Accuracy of ±1% at

Room Temperature

DESCRIPTION

The LP2966 dual ultra low-dropout (LDO) regulator

operates from a +2.70V to +7.0V input supply. Each

output delivers 150mA over full temperature range.

The IC operates with extremely low drop-out voltage and quiescent current, which makes it very suitable

for battery powered and portable applications. Each

LDO in the LP2966 has independent shutdown

capability. The LP2966 provides low noise

performance with low ground pin current in an

extremely small VSSOP-8 package (refer to package

dimensions and CONNECTION DIAGRAM for more

information on VSSOP-8 package). A wide range of

preset voltage options are available for each output.

In addition, many more are available upon request

with minimum orders. In all, 256 voltage combinations

are possible.