 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LT3073AVPBF датащи(PDF) 1 Page - Analog Devices |
|
|
|||||||||||||||||||||||||||||
LT3073AVPBF датащи(HTML) 1 Page - Analog Devices |
|
|
1 / 37 page  Data Sheet LT3073 3A, Ultra-Low Noise, High PSRR, 45mV Dropout Ultra-Fast Linear Regulator Rev 0 DOCUMENT FEEDBACK TECHNICAL SUPPORT One Analog Wa y, Wilmington, MA 01887 -2356, U.S.A. Tel: 781.329.47 00 ©2022 Analog Devices, Inc. Al l rights rese rve d. FEATURES Ultra-low RMS Noise: 1.2μVRMS (10Hz to 100kHz) Ultra-low Spot Noise: 3nV/√ at 10kHz Ultra-low1/fNoise:7µVP-P from0.1Hz to 10Hz High-Frequency PSRR: 52dB at 1MHz Ultra-fast Transient Response Dropout Voltage: 45mV Typical Digitally Programmable VOUT: 0.5V to 4.2V Output Tolerance : ±1.5% Over Line, Load, and Temperature Precision Current Monitor: ±3% accuracy at 3A Programmable Current Limit: ±3% at 3A Input Range: 0.6V to 5.5V Digital Output Margining: ±2.5% Stable with Ceramic Output Capacitors (10μF Minimum) ParallelMultipleDevicesforHigherCurrent VIOC Pin to Control Upstream Switching Converter Precision Enable/Under Voltage Lock Out (UVLO) Power Good (PG) Flag Temperature Monitor 22-Lead (3mm x 4mm) LQFN Package APPLICATIONS RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs High Speed/High Precision Data Converters Low Noise Instrumentation Post-Regulator for Switching Supplies FPGA and DSP Power Supplies Medical Applications GENERAL DESCRIPTION The LT®3073 is a low voltage, ultra-low noise, and ultra-fast transient response linear regulator. The device supplies up to 3A with a typical dropout voltage of 45mV. A 4.7µF reference bypass capacitor decreases output voltage noise to 1.2µVRMS. The wide bandwidth and high PSRR permit the use of small ceramic capacitors, saving bulk capacitance and cost. The LT3073 is ideal for powering high-performance FPGAs, data converters, RF, and noise-sensitive signal chain applications. The output voltage is digitally selectable in 50mV increments from 0.5V to 1.2V, 100mV increments from 1.2V to 1.8V, and discrete levels at 2V, 2.5V, 3V, 3.3V, and 4.2V. The LT3073’s unity-gain operation provides virtually constant output noise, PSRR, bandwidth, and load regulation independent of the programmed output voltage. In addition, the LT3073 incorporates a unique tracking feature (VIOC) to control the upstream switching regulator to maintain a constant voltage across the LT3073 and minimize power dissipation. A precision current monitor provides power monitoring for system energy management, while precision current limiting allows users to minimize input power supply size and cost. Built-in protection includes UVLO, internal current limit, and thermal shutdown with hysteresis. The LT3073 is available in a compact 22-lead (3mm X 4mm) LQFN package (Laminate package with QFN footprint). SIMPLIFIED APPLICATION DIAGRAM Figure 1. Simplified Application Diagram Figure 2. Transient Response 51kΩ 806Ω 22µF 4.7µF 2.2µF VIN VOUT + 0.1V TO 5.5V 0.5V TO 4.2V 3A MAX IOUT 2.375V TO 5.5V AND VBIAS ≥ VOUT + 1.2V OUT IN BIASF LT3073 VOUT VO2 VO1 VO0 VBIAS PROGRAM VOUT BIAS PG EN VOIC MARG GND SENSE TEMP IMON VIMON POWER GOOD REF COUT = 10µF IOUT = 300mA TO 3A 3A/µs SLEW RATE VOUT(NOMINAL) = 1V VIN = 1.3V VBIAS = 3.3V 5µs/DIV IOUT 2A/DIV VOUT AC-COUPLED 20mV/DIV |
Аналогичный номер детали - LT3073AVPBF |
|
Аналогичное описание - LT3073AVPBF |
|
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
