Datasheet LT1963A (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 1.5A, Low Noise, Fast Transient Response LDO Regulators |
| Páginas / Página | 28 / 1 — FeaTures. DescripTion. Optimized for Fast Transient Response. Output … |
| Formato / tamaño de archivo | PDF / 552 Kb |
| Idioma del documento | Inglés |
FeaTures. DescripTion. Optimized for Fast Transient Response. Output Current: 1.5A. Dropout Voltage: 340mV
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- 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 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#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
Versión de texto del documento
LT1963A Series 1.5A, Low Noise, Fast Transient Response LDO Regulators
FeaTures DescripTion
n
Optimized for Fast Transient Response
The LT®1963A series are low dropout regulators optimized n
Output Current: 1.5A
for fast transient response. The devices are capable of n
Dropout Voltage: 340mV
supplying 1.5A of output current with a dropout voltage of n
Low Noise: 40µVRMS (10Hz to 100kHz)
340mV. Operating quiescent current is 1mA, dropping to n
1mA Quiescent Current
<1µA in shutdown. Quiescent current is well controlled; it n No Protection Diodes Needed does not rise in dropout as it does with many other regula- n Controlled Quiescent Current in Dropout tors. In addition to fast transient response, the LT1963A n Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V regulators have very low output noise which makes them n Adjustable Output from 1.21V to 20V ideal for sensitive RF supply applications. n < 1µA Quiescent Current in Shutdown Output voltage range is from 1.21V to 20V. The LT1963A n Stable with 10µF Output Capacitor* regulators are stable with output capacitors as low as n Stable with Ceramic Capacitors* 10µF. Internal protection circuitry includes reverse bat- n Reverse Battery Protection tery protection, current limiting, thermal limiting and n No Reverse Current reverse current protection. The devices are available in n Thermal Limiting fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as n 5-Lead TO-220, DD, 3-Lead SOT-223 and an adjustable device with a 1.21V reference voltage. The 8-Lead SO Packages LT1963A regulators are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO and 16-lead TSSOP packages.
applicaTions
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property n 3.3V to 2.5V Logic Power Supplies of their respective owners. Protected by U.S. Patents including 6118263, 6144250. n Post Regulator for Switching Supplies *See Applications Information Section.
Typical applicaTion Dropout Voltage 3.3V to 2.5V Regulator
400 350 2.5V IN OUT 300 1.5A + + VIN > 3V 10µF* 10µF* LT1963A-2.5 250 SHDN SENSE 200 *TANTALUM, GND 150 CERAMIC OR ALUMINUM ELECTROLYTIC DROPOUT VOLTAGE (mV) 100 1963A TA01 50 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 OUTPUT CURRENT (A) 1963A TA02 1963aff For more information www.linear.com/LT1963A 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Typical Application Revision History Related Parts
FeaTures DescripTion
n
Optimized for Fast Transient Response
The LT®1963A series are low dropout regulators optimized n
Output Current: 1.5A
for fast transient response. The devices are capable of n
Dropout Voltage: 340mV
supplying 1.5A of output current with a dropout voltage of n
Low Noise: 40µVRMS (10Hz to 100kHz)
340mV. Operating quiescent current is 1mA, dropping to n
1mA Quiescent Current
<1µA in shutdown. Quiescent current is well controlled; it n No Protection Diodes Needed does not rise in dropout as it does with many other regula- n Controlled Quiescent Current in Dropout tors. In addition to fast transient response, the LT1963A n Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V regulators have very low output noise which makes them n Adjustable Output from 1.21V to 20V ideal for sensitive RF supply applications. n < 1µA Quiescent Current in Shutdown Output voltage range is from 1.21V to 20V. The LT1963A n Stable with 10µF Output Capacitor* regulators are stable with output capacitors as low as n Stable with Ceramic Capacitors* 10µF. Internal protection circuitry includes reverse bat- n Reverse Battery Protection tery protection, current limiting, thermal limiting and n No Reverse Current reverse current protection. The devices are available in n Thermal Limiting fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as n 5-Lead TO-220, DD, 3-Lead SOT-223 and an adjustable device with a 1.21V reference voltage. The 8-Lead SO Packages LT1963A regulators are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO and 16-lead TSSOP packages.
applicaTions
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property n 3.3V to 2.5V Logic Power Supplies of their respective owners. Protected by U.S. Patents including 6118263, 6144250. n Post Regulator for Switching Supplies *See Applications Information Section.
Typical applicaTion Dropout Voltage 3.3V to 2.5V Regulator
400 350 2.5V IN OUT 300 1.5A + + VIN > 3V 10µF* 10µF* LT1963A-2.5 250 SHDN SENSE 200 *TANTALUM, GND 150 CERAMIC OR ALUMINUM ELECTROLYTIC DROPOUT VOLTAGE (mV) 100 1963A TA01 50 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 OUTPUT CURRENT (A) 1963A TA02 1963aff For more information www.linear.com/LT1963A 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Typical Application Revision History Related Parts