NJU7660M Equivalent & Substitute Parts

Part Overview

The NJU7660M is a charge pump switching regulator IC manufactured by Nisshinbo Micro Devices Inc., designed for power management applications requiring positive or negative fixed voltage outputs. This device generates either -Vin or 2Vin output from a single input supply, delivering up to 50mA output current in an 8-SOIC surface mount package.

The NJU7660M is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this component.

Substiute Parts

NJU7660M

Nisshinbo Micro Devices Inc.In Stock: 2212NJU7660M Datasheet

Current PartRFQ

NJU7660AM-TE1

Nisshinbo Micro Devices Inc.In Stock: 35397NJU7660AM-TE1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NJU7660M is determined by the following critical parameters:

Core Functional Parameters:

• Topology: Charge Pump
• Output Configuration: Positive or Negative
• Output Type: Fixed
• Number of Outputs: 1
• Voltage - Input Range: 1.5V to 10V
• Voltage - Output: -Vin, 2Vin
• Switching Frequency: 5kHz

Physical & Operational Parameters:

• Mounting Type: Surface Mount
• Package Family: 8-SOIC
• Base Product Number: NJU7660

Substitute parts must maintain compatibility across these parameters. Output current capacity may vary based on application requirements, provided the substitute meets or exceeds the minimum current specification for the intended circuit. Operating temperature range and product status (active vs. obsolete) are secondary considerations that affect long-term availability and supply chain planning.

Parameter Comparison

Engineering Selection Recommendations

NJU7660AM-TE1 as Primary Substitute:

The NJU7660AM-TE1 is the direct manufacturer-designated substitute for the NJU7660M. Both devices share identical core functional parameters: charge pump topology, positive or negative output configuration, fixed output type, single output, 1.5V to 10V input range, -Vin/2Vin output capability, and 5kHz switching frequency.

Key Advantages of NJU7660AM-TE1:

• Active product status ensures ongoing availability and manufacturing support
• RoHS Compliant certification meets modern regulatory requirements
• Extended operating temperature range (-40°C to 85°C) provides broader environmental compatibility
• Improved moisture sensitivity level (MSL 1, Unlimited) reduces handling and storage constraints
• Available in Tape & Reel packaging with 35,300 units in stock

Design Consideration: The NJU7660AM-TE1 specifies 20mA maximum output current compared to the NJU7660M's 50mA. Applications requiring output current exceeding 20mA must evaluate alternative solutions or implement current-limiting circuit modifications. For applications operating within the 20mA specification, the NJU7660AM-TE1 provides full functional equivalence with superior compliance and supply chain characteristics.

Frequently Asked Questions (FAQ)

Q: Can the NJU7660AM-TE1 directly replace the NJU7660M in existing designs?

A: The NJU7660AM-TE1 provides functional equivalence for applications requiring output current up to 20mA. Both devices operate identically across input voltage range (1.5V to 10V), output voltage configuration (-Vin or 2Vin), switching frequency (5kHz), and package type (8-SOIC surface mount). If your application requires output current between 20mA and 50mA, the NJU7660AM-TE1 is not suitable without circuit redesign.

Q: What is the difference between the 8-SOIC packages specified for each part?

A: Both parts use 8-SOIC surface mount packages, but with different body widths. The NJU7660M uses 8-SOIC (0.209", 5.30mm Width), while the NJU7660AM-TE1 uses 8-SOIC (0.268", 6.81mm Width). These are standard SOIC package variants. PCB layout and footprint design must accommodate the wider body dimension of the NJU7660AM-TE1. Verify your PCB design specifications before implementation.

Q: Why is the NJU7660M classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand, technology evolution, and production decisions. The NJU7660AM-TE1, sharing the same base product number (NJU7660), represents the active continuation of this product line and is the manufacturer-recommended substitute.

Q: Are there compliance or certification differences between these parts?

A: The NJU7660AM-TE1 is RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory standards. The NJU7660M specifications do not include these certifications. For applications subject to RoHS or REACH requirements, the NJU7660AM-TE1 is the appropriate selection.

Q: What does Moisture Sensitivity Level (MSL) mean for component handling?

A: MSL indicates the maximum time a component can be exposed to ambient conditions before soldering. The NJU7660M has MSL 2 (1 Year maximum storage), while the NJU7660AM-TE1 has MSL 1 (Unlimited storage). The NJU7660AM-TE1 requires less stringent moisture control during storage and handling, reducing logistics complexity.