LP5907 Datasheet, PDF (1/13 Pages) Texas Instruments – Ultra Low-Noise, 250 mA Linear Regulator for RF/Analog Circuits - Requires No Bypass Capacitor

LP5907
May 9, 2012
Ultra Low-Noise, 250 mA Linear Regulator for RF/Analog
Circuits - Requires No Bypass Capacitor
General Description
The LP5907 is a linear regulator capable of supplying 250 mA
output current. Designed to meet the requirements of RF/
Analog circuits, the LP5907 device provides low noise, high
PSRR, low quiescent current, and low line/load transient re-
sponse figures. Using new innovative design techniques the
LP5907 offers class-leading noise performance without a
noise bypass capacitor and the ability for remote output ca-
pacitor placement.
The device is designed to work with a 1.0 μF input and a
1.0 μF output ceramic capacitor. (No Bypass Capacitor is re-
quired.)
The device is available in an ultra-thin micro SMD package.
This device is available between 1.2V and 4.5V in 25 mV
steps. Please contact Texas Instruments Sales for specific
voltage option needs.
Features
■ ^{Stable with 1.0 μF Ceramic Input and Output Capacitors}
■ ^{No Noise Bypass Capacitor Required}
■ ^{Remote Output Capacitor Placement}
■ ^{Thermal-overload and short-circuit protection}
■ ^{−40°C to +125°C junction temperature range for operation}
Key Specifications
■ ^{Input voltage range}
■ ^{Output voltage range}
■ ^{Output current}
■ ^{Low output voltage noise}
■ ^PSRR
■ ^{Output voltage tolerance}
■ ^{Virtually zero I}_Q ^(disabled)
■ ^{Very low I}_Q ^(enabled)
■ ^{Startup time}
■ ^{Low dropout}
Package
4-Bump ultra-thin micro SMD
(lead free)
Applications
■ ^{Cellular phones}
■ ^{PDA handsets}
■ ^{Wireless LAN devices}
2.2V to 5.5V
1.2V to 4.5V
250 mA
<10 μV_RMS
82 dB at 1kHz
± 2%
<1μA
12 μA
80 μs
120 mV typ.
0.35 mm pitch
0.65 mm x 0.65 mm x
0.40 mm
Typical Application Circuit
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30180501
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