Pinout
SpecificationsContinuous input voltage range, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 16 V
ON/OFF input voltage range, VON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 16 V
Output voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 9 V
Input/output voltage differential range, VIN-VOUT (see Note 2) . . . . . . . . . . .−0.3 V to 16 V
Output current, IO (see Note 3) . . . . . . . . . . . . . . Internally limited (short-circuit protected)
Package thermal impedance, JA (see Notes 3 and 4): DBV package . . . . . . . ..... 206°C/W
YEQ/YZQ package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . TBD°C/W
YEU/YZU package . . . . . . . . . . . . . . . . ... . . . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . ..TBD°C/W
Operating virtual junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°CDescriptionThe LP2985A family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance forboth portable and nonportable applications.Available in voltages of 2.5 V, 2.6 V, 2.7 V, 2.8 V, 2.85 V, 3 V,3.1 V, 3.2 V, 3.3 V, and 5 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version)and is capable of delivering 150-mA continuous load current. Standard regulator features, such as over-currentand over-temperature protection, are included.
The LP2985A has a host of features that makes the regulator an ideal candidate for a variety of portableapplications:• Low dropout: A PNP pass element allows a typical dropout of 280 mV at 150-mA load current and 7 mVat 1-mA load.• Low quiescent current: The use of a vertical PNP process allows for quiescent currents that areconsiderably lower than those associated with traditional lateral PNP regulators.• Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when theON/OFF pin is pulled low.• Low-ESR-capacitor friendly: The regulator is stable with low-ESRcapacitors, allowing the use of small,inexpensive, ceramic capacitors in cost-sensitive applications.• Low noise: A BYPASS pin allows for low-noise operation, with a typical output noise of 30 µV (RMS),with the use of a 10-nF bypass capacitor.
LP2985A Data Sheet
