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Product Detailed Parameters
- Description：IC REG DL BUCK/LINEAR SYNC 16QFN
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs：2
- Frequency - Switching：500kHz
- Voltage/Current - Output 1：3.3V, 6A
- Voltage/Current - Output 2：3.3V, 100mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：5V ~ 22V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：16-PowerVFQFN
- Supplier Device Package：16-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The NB670GQ-Z is a Monolithic Power Systems integrated power management IC combining a synchronous step-down converter and an LDO. It features a buck regulator with a 5V to 22V input range, delivering up to 6A output current at a fixed 3.3V. The switching frequency operates at 500kHz. An integrated LDO provides a secondary 3.3V output at 100mA. The device supports shutdown functionality and operates within a junction temperature range of -40°C to +125°C.
Feature Summary
- Integrates a high-current synchronous buck converter with a dedicated low-dropout linear regulator in a single package.
- Supports wide input voltage ranges suitable for various bus architectures.
- Includes shutdown control for system power management.
Applications
- Industrial equipment requiring dual voltage rails
- Telecommunications infrastructure power distribution
- Embedded systems needing combined switching and linear regulation
Procurement Notes
Verify the specific suffix against official MPS documentation to confirm pinout and thermal characteristics. Confirm RoHS compliance status through manufacturer declarations. Check datasheet revisions for any updates to electrical specifications or recommended external component values before finalizing design integration.
Selection Notes
Select this component when a design requires both high-current switching regulation and a clean, low-noise linear supply from a single IC. The integrated topology reduces board space compared to discrete solutions. Ensure the application input voltage remains within the specified 5V to 22V window for proper operation of both regulators.
Part Context
This part belongs to the NB670 series of hybrid power management devices from Monolithic Power Systems. These components are designed to simplify power architecture by merging DC-DC conversion with linear regulation capabilities. The QFN-16 package facilitates surface-mount assembly in compact electronic designs.
Replacement Considerations
NB670AGQ-P offers similar dual-output functionality with comparable specifications. Verify pin compatibility and thermal performance differences before substitution.
