Datasheet LT3014B (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 / 223 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
LT3014B 20mA, 3V to 80V Low Dropout Micropower Linear Regulator
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 3V to 80V
The LT®3014B is a high voltage, micropower low drop- n
Low Quiescent Current: 7µA
outlinear regulator. The device is capable of supplying n
Low Dropout Voltage: 350mV
20mA of output current with a dropout voltage of 350mV. n
Output Current: 20mA
Designed for use in battery-powered or high voltage sys- n LT3014BHV Survives 100V Transients (2ms) tems, the low quiescent current (7µA operating) makes n No Protection Diodes Needed the LT3014B an ideal choice. Quiescent current is also n Adjustable Output from 1.22V to 60V well controlled in dropout. n Stable with 0.47µF Output Capacitor Other features of the LT3014B include the ability to operate n Stable with Aluminum, Tantalum or Ceramic with very smal output capacitors. The regulators are stable Capacitors with only 0.47µF on the output while most older devices n Reverse-Battery Protection require between 10µF and 100µF for stability. Small ceramic n No Reverse Current Flow from Output capacitors can be used without the necessary addition of n Thermal Limiting ESR as is common with other regulators. Internal protec- n Available in 5-Lead ThinSOTTM and tion circuitry includes reverse-battery protection, current 8-Lead DFN Packages limiting, thermal limiting and reverse current protection.
APPLICATIONS
The device is available as an adjustable device with a 1.22V reference voltage. The LT3014B regulator is available in n Low Current High Voltage Regulators the 5-lead ThinSOT and 8-lead DFN packages. n Regulator for Battery-Powered Systems L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. n Telecom Applications ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Automotive Applications Protected by U.S. Patents including 6118263, 6144250.
TYPICAL APPLICATION 5V Supply Dropout Voltage
400 VOUT 350 IN OUT 5V VIN 20mA LT3014B 3.92M 300 5.4V TO 1µF 0.47µF 80V ADJ 250 GND 1.27M TAGE (mV) 200 3014B TA01 150 100 DROPOUT VOL 50 0 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) 3014B TA02 3014bfb For more information www.linear.com/LT3014B 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 3V to 80V
The LT®3014B is a high voltage, micropower low drop- n
Low Quiescent Current: 7µA
outlinear regulator. The device is capable of supplying n
Low Dropout Voltage: 350mV
20mA of output current with a dropout voltage of 350mV. n
Output Current: 20mA
Designed for use in battery-powered or high voltage sys- n LT3014BHV Survives 100V Transients (2ms) tems, the low quiescent current (7µA operating) makes n No Protection Diodes Needed the LT3014B an ideal choice. Quiescent current is also n Adjustable Output from 1.22V to 60V well controlled in dropout. n Stable with 0.47µF Output Capacitor Other features of the LT3014B include the ability to operate n Stable with Aluminum, Tantalum or Ceramic with very smal output capacitors. The regulators are stable Capacitors with only 0.47µF on the output while most older devices n Reverse-Battery Protection require between 10µF and 100µF for stability. Small ceramic n No Reverse Current Flow from Output capacitors can be used without the necessary addition of n Thermal Limiting ESR as is common with other regulators. Internal protec- n Available in 5-Lead ThinSOTTM and tion circuitry includes reverse-battery protection, current 8-Lead DFN Packages limiting, thermal limiting and reverse current protection.
APPLICATIONS
The device is available as an adjustable device with a 1.22V reference voltage. The LT3014B regulator is available in n Low Current High Voltage Regulators the 5-lead ThinSOT and 8-lead DFN packages. n Regulator for Battery-Powered Systems L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. n Telecom Applications ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Automotive Applications Protected by U.S. Patents including 6118263, 6144250.
TYPICAL APPLICATION 5V Supply Dropout Voltage
400 VOUT 350 IN OUT 5V VIN 20mA LT3014B 3.92M 300 5.4V TO 1µF 0.47µF 80V ADJ 250 GND 1.27M TAGE (mV) 200 3014B TA01 150 100 DROPOUT VOL 50 0 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) 3014B TA02 3014bfb For more information www.linear.com/LT3014B 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information