LP2985-N
LP2985-N is 150-mA Low-noise Low-dropout Regulator manufactured by Texas Instruments.
Features
- 1 Input Voltage Range: 2.5 V to 16 V
- Ultra Low-Dropout Voltage
- Ensured 150 m A Output Current
- Requires Minimum External ponents
- Stable With Low-ESR Output Capacitor
- < 1 µA Quiescent Current When Shut Down
- Low Ground Pin Current at All Loads
- Output Voltage Accuracy 1% (A Grade)
- High Peak Current Capability
- Low ZOUT: 0.3 Ω Typical (10 Hz to 1 MHz)
- Overtemperature and Overcurrent Protection
- - 40°C to 125°C Junction Temperature Range
- Custom Voltages Available
2 Applications
- Cellular Phones
- Palmtop and Laptop puters
- Personal Digital Assistants (PDA)
- Camcorders, Personal Stereos, Cameras
3 Description
The LP2985-N low noise linear (LDO) regulator delivers up to 150-m A output current and only requires 300-m V dropout voltage of input to output. Using an optimized vertically integrated PNP (VIP) process, the LP2985-N delivers unequaled performance for all battery-powered designs. The LP2985-N device provides 1% tolerance precision output voltage with only 75-µA quiescent current at 1m A load and 850 µA at 150-m A load. By adding a 10n F bypass capacitor, the output noise can be reduced to 30 µVRMS in a 30-k Hz bandwidth.
The LP2985-N is designed to work with a ceramic output capacitor with equivalent series resistance (ESR) as low as 5 mΩ. The device is available with fixed output voltage from 2.5 V to 6.1 V. Contact Texas Instrument Sales for specific voltage option needs.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
SOT-23 (5) 2.90 mm x 1.60 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Simplified Schematic
CIN 1 µF
LP2985
VOUT
COUT 2.2 µF
ON/OFF
ON/OFF BYPASS
CBYPASS 0.01...
