Abbildungen dienen nur als Referenz
MAX1771CSA
+StücklisteIC REG CTRLR BST/BUCK-BST 8SOIC
-
HerstellerAnalog Devices Inc./Maxim Integrated
-
Herstellerteil #MAX1771CSA
-
Datenblatt MAX1771CSA DataSheet
-
Paket SOIC-8
-
Auf Lager1771
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package | Tube |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Boost, Buck-Boost |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 3V ~ 16.5V |
| Frequency-Switching | 300kHz |
| DutyCycle(Max) | 92% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Enable |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key features include a high switching frequency of up to 300kHz, which allows for the use of smaller external components, reducing overall circuit size. The MAX1771CSA also features a low quiescent current, making it energy-efficient by minimizing power consumption when the device is in standby mode.
The IC incorporates protection mechanisms such as overcurrent protection and thermal shutdown, enhancing its reliability in various applications. Typical applications include LCD bias supplies, portable devices, and other applications requiring efficient voltage boosting. Its compact 8-pin SO package makes it suitable for space-constrained designs.
Equivalent
1. LT1306 from Analog Devices.
2. MC34063 from ON Semiconductor.
3. LM2577 from Texas Instruments.
4. NCP1400 from ON Semiconductor.
5. TPS61040 from Texas Instruments.
These alternatives have varying specifications, so it's important to verify compatibility with your specific application requirements.
Features
1. Wide Input Voltage Range: Operates from 2V to 16.5V, making it versatile for various power sources.
2. High Efficiency: Achieves efficiencies up to 92%, optimizing power usage.
3. Low Quiescent Current: Consumes only 110µA, extending battery life in portable applications.
4. Adjustable Output Voltage: Supports an output voltage range from 2V to 16.5V, adjustable via external resistors.
5. Internal 3A N-Channel MOSFET: Provides robust performance with minimal external components.
6. Fixed Frequency PWM Operation: Ensures stability and predictable performance at a frequency of 300kHz.
7. Current Mode Control: Enhances transient response and loop stability.
8. Soft Start Capability: Reduces inrush current during startup, protecting the circuit.
9. Overload Protection: Safeguards against excessive current conditions.
10. Compact Package: Available in an 8-pin SOIC package, suitable for space-constrained applications.
These features make the MAX1771CSA ideal for battery-powered and portable devices needing efficient voltage conversion.
Pinout
1. Pin 1 (REF): Reference voltage output. It provides a 1.5V reference voltage.
2. Pin 2 (CS): Current sense input. It monitors the inductor current.
3. Pin 3 (GND): Ground. It serves as the reference point for the circuit.
4. Pin 4 (FB): Feedback input. It is used to regulate the output voltage.
5. Pin 5 (SHDN): Shutdown input. Allows the IC to be turned on or off.
6. Pin 6 (EXT): External N-channel MOSFET gate driver. Drives the gate of an external MOSFET.
7. Pin 7 (V+): Input voltage supply. Powers the IC.
8. Pin 8 (LX): Inductor connection point. Connects to the inductor and the external diode.
The MAX1771CSA is primarily used for applications that require step-up voltage conversion with high efficiency and low power consumption.
Manufacturer
As of 2021, Maxim Integrated became a part of Analog Devices, Inc. (ADI) after a merger. Analog Devices is a leading global semiconductor company that also focuses on analog, mixed-signal, and digital signal processing technologies. Together, they provide comprehensive semiconductor solutions that include signal processing, power management, and other components essential for a wide array of electronic products and systems.