LT3973EMSE-3.3#PBF, DC-DC Switching Buck Regulator, Fixed, 4.2V to 42V in, 3.3V out, 0.75A out, MSOP-EP-10

Фото 1/3 LT3973EMSE-3.3#PBF, DC-DC Switching Buck Regulator, Fixed, 4.2V to 42V in, 3.3V out, 0.75A out, MSOP-EP-10
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Номенклатурный номер: 8017377505
Артикул: LT3973EMSE-3.3#PBF
Бренд: Analog Devices


Полупроводники - Микросхемы\Микросхемы Управления Питанием\Стабилизаторы Напряжения\Фиксированные Импульсные DC - DC Стабилизаторы

LT3973-3.3 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 42V and consumes only 2.5µA of quiescent current. A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control and logic circuitry. A minimum dropout voltage of 530mV is maintained when the input voltage drops below the programmed output voltage, such as during automotive cold crank. A catch diode current limit provides protection against shorted outputs and overvoltage conditions, with thermal shutdown providing additional fault protection. An accurate programmable undervoltage lockout feature is available, producing a low shutdown current of 0.75µA. Applications includes automotive battery regulation, power for portable products, industrial supplies and gate drive bias. Applications include automotive battery regulation, power for portable products, industrial supplies and gate drive bias.

• 3.3V typical output voltage at TA = 25°C, VIN = 12V, VBD = 3.3V
• Low ripple Burst Mode® operation, output ripple of < 10mVP-P
• Wide operating input voltage range from 4.2V to 42V
• Adjustable switching frequency range from 200KHz to 2.2MHz, internal catch diode current limit
• 750mA output current, integrated boost and catch diodes
• Excellent start-up and dropout performance, thermal shutdown
• Accurate programmable undervoltage lockout
• Power good flag signals when VOUT reaches 90% of the programmed output voltage
• Current mode topology is used for fast transient response and good loop stability
• 10-lead MSOP package, -40°C to 125°C temperature range

Технические параметры

Выходной Ток 750мА
Количество Выводов 10вывод(-ов)
Корпус ИС DC / DC Преобразователя MSOP-EP
Максимальная Рабочая Температура 125°C
Максимальное Входное Напряжение 42В
Минимальное Входное Напряжение 4.2В
Номинальное Значение Выходного Напряжения 3.3В
Топология (Общая Схема Соединений) Понижающий(Понижающий)
Уровень Чувствительности к Влажности (MSL) MSL 1-Безлимитный
Частота Коммутации 2.15МГц
Base Product Number LT3973 ->
Current - Output 750mA
Frequency - Switching 195kHz ~ 2.15MHz
Function Step-Down
HTSUS 8542.39.0001
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Mounting Type Surface Mount
Number of Outputs 1
Operating Temperature -40В°C ~ 125В°C (TJ)
Output Configuration Positive
Output Type Fixed
Package Tube
Package / Case 10-TFSOP, 10-MSOP (0.118"", 3.00mm Width) Exposed
REACH Status REACH Unaffected
RoHS Status ROHS3 Compliant
Simulation Models
Software Download
Supplier Device Package 10-MSOP-EP
Synchronous Rectifier No
Topology Buck
Video File Introducing Power by Linear
Voltage - Input (Max) 42V
Voltage - Input (Min) 4.2V
Voltage - Output (Min/Fixed) 3.3V
Brand: Analog Devices
Development Kit: DC1730A
Factory Pack Quantity: Factory Pack Quantity: 50
Input Voltage, Max: 42 V
Input Voltage, Min: 4.2 V
Input Voltage: 4.2 V to 42 V
Manufacturer: Analog Devices Inc.
Maximum Operating Temperature: +125 C
Minimum Operating Temperature: -40 C
Mounting Style: SMD/SMT
Number of Outputs: 1 Output
Operating Supply Current: 2.5 uA
Output Current: 750 mA
Output Voltage: 3.3 V
Package / Case: MSOP-10
Packaging: Tube
Product Category: Switching Voltage Regulators
Product Type: Switching Voltage Regulators
Quiescent Current: 2.5 uA
Series: LT3973
Shutdown: Shutdown
Subcategory: PMIC-Power Management ICs
Switching Frequency: 2.15 MHz
Topology: Buck
Type: Switching Regulator
Automotive No
EU RoHS Compliant
Lead Shape Gull-wing
Line Regulation 0.01%/V
Maximum Input Voltage (V) 42
Maximum Operating Temperature (°C) 125
Maximum Output Current (A) 0.75
Minimum Input Voltage (V) 4.2
Minimum Operating Temperature (°C) -40
Mounting Surface Mount
Output Voltage (V) 3.3
Packaging Tube
Part Status Active
PCB changed 10
Pin Count 10
Standard Package Name SOP
Supplier Package MSOP EP
Supplier Temperature Grade Extended
Switching Frequency (kHz) 200 to 2200
Switching Regulator Yes
Type Step Down
Typical Quiescent Current (uA) 1.8
Вес, г 0.03

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