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MAX1044ESA
+Lista de MateriaisIC REG CHARG PUMP INV 20MA 8SOIC
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #MAX1044ESA
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Ficha Técnica MAX1044ESA DataSheet
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Pacote SOIC-8
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Em Estoque6199
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Especificações
| Atributo | Valor |
| Package / Case | Tube,Tube |
| Part Status | Obsolete |
| Function | Ratiometric |
| Output Configuration | Positive or Negative |
| Topology | Charge Pump |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.5V |
| Voltage - Input (Max) | 10V |
| Voltage - Output (Min/Fixed) | -Vin, nVin, Vin/2 |
| Current - Output | 20mA |
| Frequency - Switching | 10kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features include low supply current, typically around 180 µA, and the ability to operate over a wide voltage range (1.5V to 10V). The MAX1044ESA also includes an on-chip oscillator and can achieve up to 90% efficiency, depending on the configuration and load conditions.
The IC is housed in an 8-pin SOIC package (Small Outline Integrated Circuit), making it suitable for compact designs. Its ease of use, with minimal external components required, and robust performance make it popular in battery-powered devices, portable equipment, and other applications where efficient voltage conversion is essential.
Equivalent
1. ICL7660 - A common equivalent often used in voltage doubling/inverting applications.
2. TC7660 - Similar functionality for voltage conversion applications.
3. LTC1044 - Offers similar charge pump capabilities.
4. ADM660 - Another compatible charge pump converter.
5. MC7660 - Functions similarly in voltage conversion tasks.
These alternatives can match the MAX1044ESA's performance in many low-power applications. Always check specifications for compatibility with your project.
Features
1. Voltage Conversion: It can perform voltage doubling, inverting, or other charge-pump functions, which are useful in applications requiring increased or inverted voltages from a single supply rail.
2. Input Voltage Range: It operates over a wide input voltage range, typically from 1.5V to 11V, making it versatile for various applications.
3. Low Quiescent Current: The device is designed for low power consumption with a typical quiescent current of 120µA, enhancing its suitability for battery-powered applications.
4. High Efficiency: It achieves high efficiency through its charge pump technology, minimizing power losses.
5. Oscillator Frequency: The MAX1044ESA has an internal oscillator with a frequency of around 10kHz, which can be increased to about 35kHz with an external capacitor for reduced ripple or smaller external component size.
6. Package: It is offered in an 8-pin SOIC package, which is compact and easy to integrate into circuit boards.
7. Temperature Range: The device operates over a temperature range of 0°C to +70°C, suitable for commercial applications.
Pinout
1. Pin 1 (CAP+): Positive terminal for the charge-pump capacitor.
2. Pin 2 (GND): Ground connection.
3. Pin 3 (CAP-): Negative terminal for the charge-pump capacitor.
4. Pin 4 (LV): Low-voltage operation pin (connect to GND for low-voltage mode).
5. Pin 5 (OSC): Oscillator control pin. Left open for internal frequency or connected to an external capacitor for lower frequency operation.
6. Pin 6 (V+): Positive voltage input.
7. Pin 7 (OUT): Output pin. Provides inverted or doubled voltage.
8. Pin 8 (V-): Negative voltage output when used in inverter mode.
The MAX1044 can efficiently convert and regulate voltages in various low-power applications, making it versatile for battery-powered devices.