Texas Instruments LM7705MMX/NOPB
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 5.25V |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Current - Output | 26mA |
| Supplier Device Package | 8-VSSOP |
| Output Configuration | Negative |
| Function | Step-Down |
| Topology | Charge Pump |
| Frequency - Switching | 92kHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | -0.23V |
| Voltage - Output (Max) | - |
| Voltage - Input (Min) | 3V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | LM7705 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TI negative bias generator LM7705MMX/NOPB, Low noise voltage regulator
The LM7705MMX/NOPB is a low-noise negative bias generator designed by Texas Instruments. It features a regulated output voltage of -0.23V and is specifically designed to provide a small negative supply voltage for low-voltage amplifiers, ensuring their output can swing to zero volts.
Features
This device offers several key features that make it suitable for a variety of applications. It has a regulated output voltage of -0.23V with a tolerance of 5% and an output voltage ripple of only 4mVpp. The LM7705MMX/NOPB operates from a supply voltage range of 3V to 5.25V and achieves up to 98% conversion efficiency. It also features a low quiescent current of 78µA and a shutdown current of 20nA, ensuring minimal power consumption in standby mode.
The LM7705MMX/NOPB is designed to operate within a wide temperature range of -40°C to 125°C, making it suitable for both commercial and industrial applications. It is available in an 8-pin VSSOP package, which measures 3.00mm × 3.00mm and provides excellent thermal performance. The device has a typical turn-on time of 500µs and features a shutdown pin to minimize standby power consumption.
Applications
The LM7705MMX/NOPB is ideal for applications requiring true zero output from amplifiers, such as low-voltage amplifiers in portable instruments and low-voltage split supplies. It helps prevent amplifier output saturation at zero volts, ensuring accurate signal processing and maximizing the input range of ADCs when used in signal chains.
● LM7705MM/NOPB: Fixed -0.23V output voltage and 26mA output current. Suitable for applications requiring low noise and high efficiency.
● LM27761: A newer version with a different pin-out, offering a regulated inverter with integrated LDO, smaller solution size, and higher output current up to 200mA.
