LTC’s LT1963 is a 1.5 A low dropout regulator optimized for fast transient response. The regulator is capable of supplying 1.5 A of output current with a dropout voltage of 340 mV. The device is available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, and 3.3 V, and as an adjustable device with a 1.21 V reference voltage. Output voltage range is from 1.21 V to 20 V. The LT1963 regulators are stable with output capacitors as low as 10 μF.

Operating quiescent current is 1 mA, dropping to <1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1963 has very low output voltage noise which makes the device ideal for sensitive RF supply applications. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting, and reverse current protection. The regular comes in a TO-263-6/5-DDPAK/SOIC packages that have a -40°C to +125°C temperature range. The LT1963 is ideal for post regulator, switching power supplies, and sensitive noise RF applications.

Features

Overcurrent, overtemperature, and reverse polarity
Optimized for fast transient response
Output current: 1.5 A
Dropout voltage: 340 mV at 1.5 A
Low noise: 40 μVRMS (10 Hz to 100 kHz)
1 mA quiescent current
Voltage input max: 20 V
Voltage output range: 1.21 V to 20 V
Temperature operating range: -40°C to +125°C
Package/case: TO-263-6, 5-DDPAK, SOIC

Applications 

2.5 V to 3.3 V logic power supplies
Post regulation for switching supplies
Radio frequency (RF)

LT1963AEFE#PBF
LT1963AEFE#TRPBF
LT1963AEFE-1.5#PBF
LT1963AEFE-1.5#TRPBF
LT1963AEFE-1.8#PBF
LT1963AEFE-1.8#TRPBF
LT1963AEFE-2.5#PBF
LT1963AEFE-2.5#TRPBF
LT1963AEFE-3.3#PBF
LT1963AEFE-3.3#TRPBF
LT1963AEQ#PBF
LT1963AEQ#TRPBF
LT1963AEQ-1.5#PBF
LT1963AEQ-1.5#TRPBF
LT1963AEQ-1.8#PBF
LT1963AEQ-1.8#TRPBF
LT1963AEQ-2.5#PBF
LT1963AEQ-2.5#TRPBF
LT1963AEQ-3.3#PBF
LT1963AEQ-3.3#TRPBF
LT1963AES8#PBF
LT1963AES8#TRPBF
LT1963AES8-1.5#PBF
LT1963AES8-1.5#TRPBF
LT1963AES8-1.8#PBF
LT1963AES8-1.8#TRPBF
LT1963AES8-2.5#PBF
LT1963AES8-2.5#TRPBF
LT1963AES8-3.3
LT1963AES8-3.3#PBF
LT1963AES8-3.3#TRPBF
LT1963AEST-1.5#PBF
LT1963AEST-1.5#TRPBF
LT1963AEST-1.8#PBF
LT1963AEST-1.8#TRPBF
LT1963AEST-2.5#PBF
LT1963AEST-2.5#TRPBF
LT1963AEST-3.3#PBF
LT1963AEST-3.3#TRPBF
LT1963AET#06PBF
LT1963AET#PBF
LT1963AET-1.5#06PBF
LT1963AET-1.5#PBF
LT1963AET-1.8#06PBF
LT1963AET-1.8#30PBF
LT1963AET-1.8#PBF
LT1963AET-2.5#06PBF
LT1963AET-2.5#30PBF
LT1963AET-2.5#PBF
LT1963AET-3.3#06PBF
LT1963AET-3.3#30PBF
LT1963AET-3.3#PBF
LT1963AIFE#PBF
LT1963AIFE#TRPBF
LT1963AIQ#PBF
LT1963AIQ#TRPBF
LT1963AIS8#PBF
LT1963AIS8#TRPBF
LT1963AIT#PBF
LT1963AMPQ#PBF
LT1963AMPQ#TRPBF
LT1963AMPS8#PBF
LT1963EFE#PBF
LT1963EFE#TRPBF
LT1963EFE-1.5#PBF
LT1963EFE-1.5#TRPBF
LT1963EFE-1.8#PBF
LT1963EFE-1.8#TRPBF
LT1963EFE-2.5#PBF
LT1963EFE-2.5#TRPBF
LT1963EFE-3.3#PBF
LT1963EFE-3.3#TRPBF
LT1963EQ#PBF
LT1963EQ#TRPBF
LT1963EQ-1.5#PBF
LT1963EQ-1.5#TRPBF
LT1963EQ-1.8#PBF
LT1963EQ-1.8#TRPBF
LT1963EQ-2.5#PBF
LT1963EQ-2.5#TRPBF
LT1963EQ-3.3#PBF
LT1963EQ-3.3#TRPBF
LT1963ES8#PBF
LT1963ES8#TRPBF
LT1963ES8-1.5#PBF
LT1963ES8-1.5#TRPBF
LT1963ES8-1.8#PBF
LT1963ES8-1.8#TRPBF
LT1963ES8-2.5#PBF
LT1963ES8-2.5#TRPBF
LT1963ES8-3.3#PBF
LT1963ES8-3.3#TRPBF
LT1963EST-1.5#PBF
LT1963EST-1.5#TRPBF
LT1963EST-1.8#PBF
LT1963EST-1.8#TRPBF
LT1963EST-2.5#PBF
LT1963EST-2.5#TRPBF
LT1963EST-3.3#PBF
LT1963EST-3.3#TRPBF
LT1963ET#06PBF
LT1963ET#30PBF
LT1963ET#31PBF
LT1963ET#PBF
LT1963ET-1.5#30PBF
LT1963ET-1.5#PBF
LT1963ET-1.8#30PBF
LT1963ET-1.8#PBF
LT1963ET-2.5#PBF
LT1963ET-3.3#06PBF
LT1963ET-3.3#30PBF
LT1963ET-3.3#PBF