ChipApex | Global Electronic Components Supplier
NX2114CSTR
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC PWM CONTROLLER
- Series：-
- Mfr：Microsemi Corporation
- Package：Bulk
- Output Type：PWM
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 5.5V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：94%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
Download product information
Overview
The NX2114CSTR is a synchronous PWM DC-DC switching controller designed for step-down (buck) applications with a positive output configuration. It operates at a fixed switching frequency of 300kHz and supports an input supply voltage range of 4.5V to 5.5V. The device features a maximum duty cycle of 94% and includes integrated control characteristics such as enable functionality and soft-start capabilities. It is housed in an 8-SOIC surface-mount package and is rated for operation within a commercial temperature range of 0°C to 70°C.
Feature Summary
- Synchronous rectification architecture for improved efficiency
- Integrated soft-start mechanism to limit inrush current
- Enable pin for power management control
Applications
- Step-down voltage regulation in embedded systems
- Power distribution units requiring 300kHz switching
- Commercial electronic devices operating within 4.5V to 5.5V input ranges
Procurement Notes
Verify the specific suffix designation, as the NX2114 series includes variants with different switching frequencies, such as the 600kHz option. Confirm that the 300kHz specification aligns with the target circuit design requirements before procurement. Ensure the 8-SOIC package dimensions match the PCB footprint constraints. Check component status, as availability may be limited due to product lifecycle changes.
Selection Notes
Select this component when a fixed 300kHz synchronous buck controller is required for low-voltage applications. Compare against the 600kHz variant if higher switching frequencies are needed for smaller passive components. Ensure the input voltage range of 4.5V to 5.5V matches the system power rail. Verify thermal performance within the 0°C to 70°C operating range for the intended environment.
Part Context
The NX2114CSTR belongs to the NX2114 family of synchronous PWM controllers manufactured by Microsemi Corporation. This family offers options for both 300kHz and 600kHz switching frequencies. The CSTR suffix typically denotes the specific 300kHz frequency variant packaged in bulk tape-and-reel format, distinguishing it from other frequency or packaging configurations within the same functional family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official manufacturer resources for cross-reference data or equivalent products from other vendors.
