LP2966IMM-3325 ,Dual 150mA Ultra Low-Dropout RegulatorApplications0.9 mV at 1mA load current and 135mV at 150mA load cur-n Palmtop/Laptop Computerrent.n ..
LP2966IMM-3325 ,Dual 150mA Ultra Low-Dropout Regulatorapplicationssponding output drops 10% below nominal.Precision Output Voltage: Multiple output volta ..
LP2966IMM-3325 ,Dual 150mA Ultra Low-Dropout RegulatorapplicationsShutdown Mode: Less than 1μA quiescent current whenn Hand held equipment and multimeter ..
LP2966IMM-3333 ,Dual 150mA Ultra Low-Dropout Regulatorapplicationsrequest with minimum orders. In all, 256 voltage combina-n Over temperature/over curren ..
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LP2966IMM-2830-LP2966IMM-3325
Dual 150mA Ultra Low-Dropout Regulator
LP2966
Dual 150mA Ultra Low-Dropout Regulator
General DescriptionThe LP2966 dual ultra low-dropout (LDO) regulator operates
froma +2.70Vto +7.0V input supply. Each output delivers
150mA overfull temperature range. TheIC operates withex-
tremely low drop-out voltage and quiescent current, which
makesit very suitablefor battery powered and portable ap-
plications. Each LDOin the LP2966 has independent shut-
down capability. The LP2966 provides low noise perfor-
mance with low ground pin currentinan extremely small
MSOP-8 package (referto package dimensions and connec-
tion diagramfor more informationon MSOP-8 package).A
wide rangeof preset voltage options are availablefor each
output.In additionto the voltage combinations listedin the
ordering information table, many more are available uponre-
quest with minimum orders.Inall, 256 voltage combinations
are possible.
Key Specifications
Dropout Voltage: Varies linearly with load current. Typically
0.9 mVat 1mA load current and 135mVat 150mA load cur-
rent.
Ground Pin Current: Typically 300μAat 1mA load current
and 340μAat 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 corre-
sponding output drops 10% below nominal.
Precision Output Voltage: Multiple output voltage options
available ranging from 1.8Vto 5.0V witha guaranteed accu-
racyof ±1%at room temperature.
Features Ultra low drop-out voltage Low groundpin current <1μA quiescent currentin shutdown mode Independent shutdownof each LDO regulator Output voltage accuracy ±1% Guaranteed 150mA output currentat each output Low output noise Error Flags indicate statusof each output Availablein MSOP-8 surface mount packages Low output capacitor requirements (1μF) Operates with Low ESR ceramic capacitorsin most
applications Over temperature/over current protection -40˚Cto +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
Typical Application CircuitDS100850-30
*SD1and SD2 mustbe actively terminated throughapullup resistor.TietoVINifnot used.
**ERROR1and ERROR2are open drain outputs. Thesepins mustbe connectedto groundifnot used. Minimum output capacitanceis1μFto insure stability overfull load current range. More capacitance improves superior dynamic performanceand provides
additional stability margin.
April 2000
LP2966
Dual
150mA
Ultra
Low-Dropout
Regulator
