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Product attributes Property Value
Manufacturer Nisshinbo Micro Devices Inc.
Product Series
Packaging Tape & Reel (TR) |
Part Status Active
Type Class AB
Output Type 1-Channel (Mono)
Max Output Power x Channels @ Load -
Voltage - Supply 2.7V ~ 4.5V
Features Standby
Mounting Type Surface Mount
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Supplier Device Package 8-TVSP
Package / Case 8-VSSOP, 8-MSOP (0.110", 2.80mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The NJM2781RB2-TE1 is a mono Class AB audio amplifier from Nisshinbo Micro Devices, designed for low-voltage portable applications. Operating from 2.7V to 4.5V, it features a standby mode for power saving. Housed in a compact 8-TVSP package, it is ideal for headphones, mobile accessories, and battery-powered audio devices.

  • Low Voltage Operation: Works from 2.7V to 4.5V, compatible with single-cell Li-ion batteries.
  • Standby Mode: Reduces power consumption to near zero when not in use, extending battery life.
  • Compact Size: 8-TVSP package minimizes PCB footprint for space-constrained designs.
  • Low Distortion: Class AB topology ensures high-quality audio reproduction.

Portable Headphone Amplifier

The NJM2781RB2-TE1 is ideal for portable headphone amplifiers, providing clean audio output with low distortion and standby mode to save battery.

Mobile Phone Accessory

Its low voltage operation (2.7V-4.5V) makes it suitable for mobile phone accessories like hands-free kits or speakerphones.

Voice Recorder

This amplifier can drive a small speaker in voice recorders, offering clear playback with minimal power consumption.

Electronic Toy

For toys with sound features, the NJM2781RB2-TE1 delivers sufficient audio power in a tiny package, enabling compact designs.

Battery-Powered Intercom

With standby mode, this IC is perfect for battery-powered intercoms that need to conserve energy between uses.

Medical Monitoring Device

Its reliability and low noise make it suitable for medical devices that require audio alerts or voice prompts.

Q: What is the supply voltage range for the NJM2781RB2-TE1?
A: It operates from 2.7V to 4.5V.
Q: Does this amplifier have any power-saving features?
A: Yes, it includes a standby function for low power consumption when idle.
Q: What is the amplifier class?
A: It is a Class AB amplifier.
Q: What package is the NJM2781RB2-TE1 available in?
A: It comes in an 8-TVSP package (similar to MSOP).
Q: What are typical applications for this IC?
A: It is commonly used in portable audio devices, headphones, and voice output modules.
Base Product Number : NJM2781
Audio Amplifier Class AB Headphone Driver Low Power Mono NJM2781 Portable Standby Surface Mount TVSP
Q: What is the supply voltage range for the NJM2781RB2-TE1?
A: It operates from 2.7V to 4.5V.
Q: Does this amplifier have any power-saving features?
A: Yes, it includes a standby function for low power consumption when idle.
Q: What is the amplifier class?
A: It is a Class AB amplifier.
Q: What package is the NJM2781RB2-TE1 available in?
A: It comes in an 8-TVSP package (similar to MSOP).
Q: What are typical applications for this IC?
A: It is commonly used in portable audio devices, headphones, and voice output modules.