Datasheet LT3088 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 800mA Single Resistor Rugged Linear Regulator |
| Páginas / Página | 26 / 1 — FEATURES. DESCRIPTION. Extended Safe Operating Area. Maximum Output … |
| Formato / tamaño de archivo | PDF / 566 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Extended Safe Operating Area. Maximum Output Current: 800mA
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Versión de texto del documento
LT3088 800mA Single Resistor Rugged Linear Regulator
FEATURES DESCRIPTION
n
Extended Safe Operating Area
The LT®3088 is an 800mA low dropout linear regulator n
Maximum Output Current: 800mA
designed for rugged industrial applications. A key feature n
Stable with or without Input/Output Capacitors
of the IC is the extended safe operating area (SOA). The n
Wide Input Voltage Range: 1.2V to 36V
LT3088 can be paralleled for higher output current or heat n
Single Resistor Sets Output Voltage
spreading. The device withstands reverse input and reverse n
Output Adjustable to 0V
output-to-input voltages without reverse current flow. n
50µA SET Pin Current: 1% Initial Accuracy
The LT3088’s precision 50µA reference current source n
Output Voltage Noise: 27µVRMS
allows a single resistor to program output voltage to n
Parallel Multiple Devices for Higher Current, Heat
any level between zero and 34.5V. The current reference
Spreading and Lower Noise
architecture makes load regulation independent of output n
Pin Compatible Upgrade to LT1117
voltage. The LT3088 is stable with or without input and n
Reverse-Battery and Reverse-Current Protection
output capacitors. n <1mV Typical Load Regulation Independent of VOUT n <0.001%/V Typical Line Regulation Internal protection circuitry includes reverse-battery and n 3-Lead SOT-223, 3-Lead DD-Pak, 8-Lead 3mm × reverse-current protection, current limiting and thermal 3mm DFN Packages limiting. The LT3088 is offered in the 3-lead SOT-223, 3-lead DD-Pak, and an 8-lead 3mm × 3mm DFN package.
APPLICATIONS
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n All Surface Mount Power Supply n Rugged Industrial Power Supply n Post Regulator for Switching Supplies n Low Output Voltage Supply n Intrinsic Safety Applications
TYPICAL APPLICATION SET Pin Current Wide Safe Operating Area Supply
51.0 ILOAD = 2mA V 50.8 IN 50.6 LT3088 IN 50.4 50µA 50.2 + 50.0 – 49.8 OUT IOUT 49.6 1.5V SET PIN CURRENT (µA) SET 800mA 49.4 10µF* 750Ω* 49.2 30.1k 3088 TA01a 49.0 *OPTIONAL –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) 3088 G01 3088fb For more information www.linear.com/LT3088 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Block Diagram Applications Information Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Extended Safe Operating Area
The LT®3088 is an 800mA low dropout linear regulator n
Maximum Output Current: 800mA
designed for rugged industrial applications. A key feature n
Stable with or without Input/Output Capacitors
of the IC is the extended safe operating area (SOA). The n
Wide Input Voltage Range: 1.2V to 36V
LT3088 can be paralleled for higher output current or heat n
Single Resistor Sets Output Voltage
spreading. The device withstands reverse input and reverse n
Output Adjustable to 0V
output-to-input voltages without reverse current flow. n
50µA SET Pin Current: 1% Initial Accuracy
The LT3088’s precision 50µA reference current source n
Output Voltage Noise: 27µVRMS
allows a single resistor to program output voltage to n
Parallel Multiple Devices for Higher Current, Heat
any level between zero and 34.5V. The current reference
Spreading and Lower Noise
architecture makes load regulation independent of output n
Pin Compatible Upgrade to LT1117
voltage. The LT3088 is stable with or without input and n
Reverse-Battery and Reverse-Current Protection
output capacitors. n <1mV Typical Load Regulation Independent of VOUT n <0.001%/V Typical Line Regulation Internal protection circuitry includes reverse-battery and n 3-Lead SOT-223, 3-Lead DD-Pak, 8-Lead 3mm × reverse-current protection, current limiting and thermal 3mm DFN Packages limiting. The LT3088 is offered in the 3-lead SOT-223, 3-lead DD-Pak, and an 8-lead 3mm × 3mm DFN package.
APPLICATIONS
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n All Surface Mount Power Supply n Rugged Industrial Power Supply n Post Regulator for Switching Supplies n Low Output Voltage Supply n Intrinsic Safety Applications
TYPICAL APPLICATION SET Pin Current Wide Safe Operating Area Supply
51.0 ILOAD = 2mA V 50.8 IN 50.6 LT3088 IN 50.4 50µA 50.2 + 50.0 – 49.8 OUT IOUT 49.6 1.5V SET PIN CURRENT (µA) SET 800mA 49.4 10µF* 750Ω* 49.2 30.1k 3088 TA01a 49.0 *OPTIONAL –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) 3088 G01 3088fb For more information www.linear.com/LT3088 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Block Diagram Applications Information Revision History Typical Application Related Parts