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LM2662MX
+StücklisteIC REG CHARGE PUMP INV 8SOIC
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HerstellerTexas Instruments
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Herstellerteil #LM2662MX
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Paket SOIC-8
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Auf Lager5190
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| 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) | 5.5V |
| Voltage - Output (Min/Fixed) | -Vin, 2Vin, Vin/2 |
| Current - Output | 200mA |
| Frequency - Switching | 10kHz, 75kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Übersicht
Description
This IC is designed for efficient performance with a high switching frequency, minimizing the need for external components and allowing for a compact design. It has a typical output current capability of up to 200 mA. The LM2662MX features low quiescent current, making it power-efficient, and includes built-in protection features such as thermal shutdown and current limiting to ensure reliable operation under different conditions.
Packaged in a surface-mount format, the LM2662MX is suitable for modern, space-constrained circuit designs. Its versatility and reliability make it a popular choice for applications requiring voltage inversion or doubling, such as powering sensors, displays, and other peripheral devices.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 1.5V to 5.5V, allowing flexibility with different power sources.
2. High Efficiency: Utilizes CMOS technology to achieve efficient power conversion, which is crucial for battery-powered applications.
3. Low Quiescent Current: Consumes minimal current when not switching, enhancing battery life in portable devices.
4. Adjustable Frequency: Offers the ability to set the switching frequency, optimizing performance for specific applications.
5. Compact Package: Available in a small surface-mount package, making it suitable for space-constrained designs.
6. Minimal External Components: Requires only a few external capacitors, simplifying the overall design and reducing cost.
7. Thermal Protection: Includes built-in thermal shutdown to protect the device from overheating.
8. Short-Circuit Protection: Safeguards against unexpected circuit conditions.
These features make the LM2662MX ideal for applications such as LCD bias supplies, operational amplifier power supplies, and other portable electronic devices.
Pinout
1. V+ (Pin 1): Positive voltage input.
2. CAP+ (Pin 2): Positive terminal for the charge pump capacitor.
3. CAP- (Pin 3): Negative terminal for the charge pump capacitor.
4. GND (Pin 4): Ground connection.
5. LV (Pin 5): Low-voltage option pin.
6. OUT (Pin 6): Voltage output.
7. S1 (Pin 7): Select pin for mode of operation (connected to GND for voltage inversion).
8. S2 (Pin 8): Select pin for mode of operation (connected to V+ for voltage doubling).
The LM2662MX operates by using a switched capacitor network to efficiently convert and regulate the output voltage, making it suitable for applications requiring negative or doubled voltages from a single positive input.
Manufacturer
Application
1. Voltage Inversion: Ideal for generating a negative voltage supply from a positive input, often used in analog circuits.
2. Voltage Doubling: Used to double the input voltage, suitable for low-power applications.
3. Battery-Powered Devices: Efficient for portable devices due to low quiescent current.
4. LCD Bias Generators: Provides the necessary voltage for driving LCDs.
5. Operational Amplifier Power Supplies: Supplies negative voltage for dual-supply op-amps.
6. Energy Harvesting: Enhances output voltage in low-power generator circuits.
Overall, it is used in applications requiring efficient and compact DC-DC conversion.