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LMC7660IMX
+BOMIC REG CHARGE PUMP INV 8SOIC
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #LMC7660IMX
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Bảng dữ liệu LMC7660IMX DataSheet
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Gói SOIC (D)-8
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Có sẵn5118
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Not For New Designs |
| Function | Ratiometric |
| OutputConfiguration | Negative |
| Topology | Charge Pump |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 1.5V |
| Voltage-Input(Max) | 10V |
| Voltage-Output(Min/Fixed) | -Vin |
| Frequency-Switching | 10kHz |
| SynchronousRectifier | No |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The LMC7660IMX is efficient, requiring only two external capacitors for operation, and boasts a low quiescent current, enhancing its suitability for portable devices. It features a typical power conversion efficiency of up to 98% and can deliver output currents up to 20mA. The device also includes a frequency boost feature to minimize output voltage ripple and improve performance.
Packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package, the LMC7660IMX is designed for ease of use and integration within electronic circuits, providing a reliable solution for generating negative supply voltages.
Equivalent
Features
1. Voltage Conversion: It converts a positive input voltage to a negative output voltage, effectively doubling the voltage range available for applications.
2. Efficiency: The device operates with high efficiency, often exceeding 95%, making it suitable for battery-powered systems.
3. Low Operating Current: The typical current consumption is around 100 µA, conserving power in low-power applications.
4. Wide Input Voltage Range: It supports input voltages from 1.5V to 10V, offering flexibility for various power supply scenarios.
5. Output Current Capability: It can source up to 20 mA of output current, fitting small to medium power demands.
6. Low Voltage Drop: The device features a low voltage drop of typically 0.1V, enhancing performance in low voltage applications.
7. Compact Package: Available in small MSOP-8 and other package options, it is suitable for space-constrained designs.
8. External Component Count: Minimal external components are required, simplifying the overall design process.
These features make the LMC7660IMX a versatile choice for applications requiring a simple, efficient, and compact voltage inverter.
Pinout
1. Pin 1 (CAP+): Connect to the positive terminal of the charge pump capacitor.
2. Pin 2 (GND): Ground pin.
3. Pin 3 (LV): Low voltage pin, used to improve performance at lower voltages.
4. Pin 4 (CAP-): Connect to the negative terminal of the charge pump capacitor.
5. Pin 5 (VOUT): Output voltage pin, provides the inverted voltage.
6. Pin 6 (OSC): Oscillator control pin, used to adjust the frequency with an external capacitor if needed.
7. Pin 7 (NC): No connection, typically not used.
8. Pin 8 (VIN): Input voltage pin, where the supply voltage is connected.
The LMC7660IMX is designed to work with input voltages from 1.5V to 10V and can provide an output that is the negative of the input voltage with a maximum output current of around 20 mA.
Manufacturer
Application
1. Analog and Mixed-Signal Systems: Provides negative voltage for operational amplifiers and data converters.
2. Battery-Powered Devices: Efficiently generates negative voltages with minimal power consumption.
3. LCD Biasing: Supplies the necessary negative voltage for LCD contrast adjustment.
4. Portable Instruments: Offers compact and efficient power solutions.
5. Sensor Interfaces: Powers sensors requiring dual supply voltages.
6. Communication Devices: Used in circuits where negative voltage is needed for biasing or signal processing.
Its versatility makes it suitable for a variety of low-power and portable electronic applications.