Datasheet LT3014 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 20mA, 3V to 80V Low Dropout Micropower Linear Regulator |
| Páginas / Página | 16 / 1 — FEATURES. DESCRIPTION. Wide Input Voltage Range: 3V to 80V. Low Quiescent … |
| Formato / tamaño de archivo | PDF / 185 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Wide Input Voltage Range: 3V to 80V. Low Quiescent Current: 7µA. Low Dropout Voltage: 350mV
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Versión de texto del documento
LT3014 20mA, 3V to 80V Low Dropout Micropower Linear Regulator
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 3V to 80V
The LT®3014 is a high voltage, micropower low dropout n
Low Quiescent Current: 7µA
linear regulator. The device is capable of supplying 20mA of n
Low Dropout Voltage: 350mV
output current with a dropout voltage of 350mV. Designed n
Output Current: 20mA
for use in battery-powered or high voltage systems, the low n LT3014HV Survives 100V Transients (2ms) quiescent current (7μA operating and 1μA in shutdown) n No Protection Diodes Needed makes the LT3014 an ideal choice. Quiescent current is n Adjustable Output from 1.22V to 60V also well controlled in dropout. n 1µA Quiescent Current in Shutdown Other features of the LT3014 include the ability to operate n Stable with 0.47µF Output Capacitor with very small output capacitors. The regulators are stable n Stable with Aluminum, Tantalum or Ceramic with only 0.47μF on the output while most older devices Capacitors require between 10μF and 100μF for stability. Small ceramic n Reverse-Battery Protection capacitors can be used without the necessary addition of n No Reverse Current Flow from Output ESR as is common with other regulators. Internal protec- n Thermal Limiting tion circuitry includes reverse-battery protection, current ■ Available in 5-Lead ThinSOTTM and limiting, thermal limiting and reverse current protection. 8-Lead DFN Packages The device is available as an adjustable device with a 1.22V
APPLICATIONS
reference voltage. The LT3014 regulator is available in the 5-lead ThinSOT and 8-lead DFN packages. n Low Current High Voltage Regulators n Regulator for Battery-Powered Systems L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. n Telecom Applications All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6118263, 6144250. n Automotive Applications
TYPICAL APPLICATION 5V Supply with Shutdown Dropout Voltage
400 VOUT 350 IN OUT 5V VIN 20mA LT3014 3.92M 300 5.4V TO 1μF 0.47μF 80V SHDN ADJ 250 GND 1.27M TAGE (mV) 200 3014 TA01 150
VSHDN OUTPUT
<0.3V OFF 100 >2.0V ON DROPOUT VOL 50 0 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) 3014 TA02 3014fd 1
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 3V to 80V
The LT®3014 is a high voltage, micropower low dropout n
Low Quiescent Current: 7µA
linear regulator. The device is capable of supplying 20mA of n
Low Dropout Voltage: 350mV
output current with a dropout voltage of 350mV. Designed n
Output Current: 20mA
for use in battery-powered or high voltage systems, the low n LT3014HV Survives 100V Transients (2ms) quiescent current (7μA operating and 1μA in shutdown) n No Protection Diodes Needed makes the LT3014 an ideal choice. Quiescent current is n Adjustable Output from 1.22V to 60V also well controlled in dropout. n 1µA Quiescent Current in Shutdown Other features of the LT3014 include the ability to operate n Stable with 0.47µF Output Capacitor with very small output capacitors. The regulators are stable n Stable with Aluminum, Tantalum or Ceramic with only 0.47μF on the output while most older devices Capacitors require between 10μF and 100μF for stability. Small ceramic n Reverse-Battery Protection capacitors can be used without the necessary addition of n No Reverse Current Flow from Output ESR as is common with other regulators. Internal protec- n Thermal Limiting tion circuitry includes reverse-battery protection, current ■ Available in 5-Lead ThinSOTTM and limiting, thermal limiting and reverse current protection. 8-Lead DFN Packages The device is available as an adjustable device with a 1.22V
APPLICATIONS
reference voltage. The LT3014 regulator is available in the 5-lead ThinSOT and 8-lead DFN packages. n Low Current High Voltage Regulators n Regulator for Battery-Powered Systems L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. n Telecom Applications All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6118263, 6144250. n Automotive Applications
TYPICAL APPLICATION 5V Supply with Shutdown Dropout Voltage
400 VOUT 350 IN OUT 5V VIN 20mA LT3014 3.92M 300 5.4V TO 1μF 0.47μF 80V SHDN ADJ 250 GND 1.27M TAGE (mV) 200 3014 TA01 150
VSHDN OUTPUT
<0.3V OFF 100 >2.0V ON DROPOUT VOL 50 0 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) 3014 TA02 3014fd 1