LP8900 Datasheet, PDF (1/14 Pages) National Semiconductor (TI) – Ultra Low Noise, Dual 200mA Linear Regulator for RF/Analog Circuits

LP8900
February 11, 2009
Ultra Low Noise, Dual 200mA Linear Regulator for RF/
Analog Circuits
General Description
The LP8900 is a dual linear regulator capable of supplying
200mA output current per regulator. Designed to meet the
requirements of RF/Analog circuits, the LP8900 provides low
device noise, High PSRR, low quiescent current and superior
line transient response figures.
Using new innovative design techniques the LP8900 offers
class-leading device noise performance without a noise by-
pass capacitor.
The LP8900 is designed to be stable with space saving
ceramic capacitors as small as 0402 case size, enabling a
solution size <4mm ².
Performance is specified for a -40°C to 125°C junction
temperature range.
Output voltage options are available between 1.2V and 3.6V,
for availability please contact your local NSC sales office.
Features
■ ^{Operation from 1.8V to 5.5V Input}
■ ^{1% accuracy Over Temperature}
■ ^{Output Voltage from 1.2V to 3.6V}
■ ^6µV_RMS^{Output Voltage Noise}
■ ^{PSRR 75dB at 1kHz}
■ ^{110mV Dropout at 200mA load}
■ ^{48µA Quiescent Current per regulator}
■ ^{80µs Start-Up time}
■ ^{Stable with Ceramic Capacitors as small as 0402}
■ ^{Thermal-Overload and Short-Circuit Protection}
Package
■ ^{6 pin micro SMD (1.5mm x 1.1mm)}
Applications
■ ^{Battery Operated Devices}
■ ^{Hand-Held Information Appliances}
■ ^{Noise Sensitive RF Applications}
■ ^{DC/DC Convertor Post Regulation/Filter}
Typical Application Circuit
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