Nisshinbo Micro Devices Inc. Audio Amplifiers NJM2770RB1-TE1

The NJM2770RB1-TE1 is a high-power, low-voltage audio power amplifier designed for applications requiring efficient audio amplification. It operates within a voltage range of +2V to +4.5V and provides a typical output power of 250mW at a 3V supply with an 8-ohm load, and 400mW at a 4.5V supply with a 16-ohm load. The amplifier features a low standby current of 0.1µA, making it suitable for battery-powered devices such as cellular phones and hands-free systems. The NJM2770 utilizes a differential output type, eliminating the need for external coupling capacitors, and allows for gain adjustments through two external resistors, with a gain range of 0-43dB. It is housed in a compact MSOP8 package, which is advantageous for space-constrained designs. The device also includes a thermal shutdown function for added reliability. Overall, the NJM2770RB1-TE1 is a suitable choice for engineers looking for a low-power audio amplifier with high output capabilities.