LP3981IMM-2.8/NOPB ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator 8-VSSOP -40 to 125Features 3 DescriptionPerformance of the LP3981 device is optimized for1• 2.5-V to 6-V Input Rangeb ..
LP3981IMM-2.83 ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorApplicationsoptions can be made available, please contact your localn CDMA cellular handsetsNSC sal ..
LP3981IMM-3.0 ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorBlock Diagram20020301
LP3981IMM-3.03 ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorGeneral Descriptionn ≤1µA quiescent current when shut downThe LP3981’s performance is optimized for ..
LP3981IMM-3.03 ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorGeneral Descriptionn ≤1µA quiescent current when shut downThe LP3981’s performance is optimized for ..
LP3981IMM-3.03 ,Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorLP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage RegulatorMarch 2003LP3981Micropower, 300mA ..
LT1058ACN ,Quad JFET Input Precision High Speed Op Amps
LT1058ACN ,Quad JFET Input Precision High Speed Op Amps
LT1058ISW ,Quad JFET Input Precision High Speed Op Amps
LT1058ISW ,Quad JFET Input Precision High Speed Op Amps
LT1058ISW ,Quad JFET Input Precision High Speed Op Amps
LT1070 ,5A and 2.5A High Efficiency Switching Regulators
LP3981IMM-2.8/NOPB
Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator 6-WSON -40 to 125
BYPASS
LP39812.2 μF
OUT-SENSE
OUT
2(2)
7(6)
1(1)
4(3)
6(5)
5(4)
2.2 μF
Product
Sample &
Support &
Reference
Features 3 DescriptionPerformanceof the LP3981 deviceis optimized for 2.5-Vto 6-V Input Range battery-powered systemsto deliver ultra-low-noise,• 300-mA Output Current extremely low dropout voltage, and low quiescent• 60-dB PSRRat1 kHz current. Regulator ground current increases only
slightlyin dropout, further prolonging the battery life.• ≤ 1-μA Quiescent Current When Shut Down Fast Turnon Time: 120μs (typical) with CBYPASS= Power supply rejectionis better than 60 dBat low
0.01 µF frequencies. This high power supply rejection is
maintained down to lower input voltage levels• 132-mV Typical Dropout with 300-mA Load commonto battery-operated circuits.• 35-μVrms Output Noise Over10 Hzto 100 kHz
The deviceis ideal for mobile phone and similar• Logic Controlled Enable battery-powered wireless applications.It provides up• Stable With Ceramic and High-Quality Tantalum to 300 mA, froma 2.5-Vto 6-V input, consuming lessCapacitors than1 µAin disable mode. Thermal Shutdown and Short-Circuit Current Limit The LP3981is availablein 8-pin VSSOP-8 and 6-pin• Low Thermal Resistancein WSON-6 Package WSON packages. Performanceis specified for −40°CGives Excellent Power Capability to +125°C temperature range. The device availablein
the following output voltages: 2.5V, 2.7 V, 2.8 V,
2.83V,3V, 3.03V and 3.3V as standard. Other
2 Applicationsoutput options can be made available; contact your• CDMA Cellular Handsets localTI sales office for more information.• Wideband CDMA Cellular Handsets
Device Information(1)• GSM Cellular Handsets• Portable Information
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application Circuit indicate WSON package.
