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MAX1674EUA
+Lista de MateriaisIC REG BST ADJ/PROG 750MA 8UMAX
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #MAX1674EUA
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Pacote MSOP-8
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Especificações
| Atributo | Valor |
| Package | Tube |
| ProductStatus | Obsolete |
| Function | Step-Up |
| OutputConfiguration | Positive |
| Topology | Boost |
| OutputType | Adjustable (Programmable) |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 0.7V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 2V (3.3V, 5V) |
| Voltage-Output(Max) | 5.5V |
| Current-Output | 750mA (Switch) |
| Frequency-Switching | Up to 500Hz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
Visão Geral
Description
The MAX1674EUA can deliver output voltages up to 5.5V with efficiencies reaching up to 95%, depending on the load and input voltage. It features a quiescent current as low as 10µA, helping to minimize power consumption when the device is not actively driving a load. The device also includes a range of protective features, such as short-circuit protection, thermal shutdown, and a low-battery detector, enhancing reliability.
Packaged in an 8-pin µMAX, the MAX1674EUA offers a compact footprint, making it ideal for space-constrained applications. Its simplicity and high efficiency make it a versatile solution for various power management needs.
Equivalent
1. TPS61070 from Texas Instruments
2. LTC3400 from Analog Devices (formerly Linear Technology)
3. MCP1640 from Microchip Technology
4. NCP1406 from ON Semiconductor
These alternatives offer similar functionalities, such as boosting voltage from a lower input, and are suitable for battery-powered applications. Always check the specific datasheets to ensure compatibility with your circuit requirements.
Features
1. High Efficiency: Achieves efficiencies up to 95%, optimizing battery life in portable devices.
2. Low Quiescent Current: Consumes only 12µA during operation, which helps extend battery life.
3. Compact Package: Available in a small µMAX package, suitable for space-constrained applications.
4. Wide Input Voltage Range: Operates from 0.7V to 5.5V, allowing use with a single cell or multiple batteries.
5. Adjustable Output Voltage: Offers an adjustable output from 2.7V to 5.5V for flexibility in various applications.
6. Fixed-Frequency Operation: Operates at a constant 300kHz frequency to minimize noise and interference.
7. Low-Battery Detection: Features a low-battery comparator for monitoring battery status.
8. Internal MOSFETs: Includes built-in MOSFET switches to simplify design and reduce component count.
These features make the MAX1674EUA suitable for use in portable electronics, handheld devices, and other battery-powered applications requiring efficient voltage boosting.
Pinout
1. Pin 1 (LX): Inductor connection. It is the drain of the internal N-channel MOSFET.
2. Pin 2 (GND): Ground connection for the IC.
3. Pin 3 (FB): Feedback input for adjusting the output voltage.
4. Pin 4 (SHDN): Shutdown pin. A low input puts the IC in shutdown mode to save power.
5. Pin 5 (REF): Reference output voltage. Provides a 1.25V reference voltage.
6. Pin 6 (OUT): Output pin. Connects to the output capacitor and load.
7. Pin 7 (IN): Power supply input voltage.
8. Pin 8 (COMP): Compensation pin for loop stability.
The IC is typically used to boost battery voltage to drive loads that require higher voltages, featuring low quiescent current and high efficiency suitable for portable, battery-operated devices.