Overview
The MP2491CGQB-Z is a high-performance, fully integrated, 32V, 6A synchronous step-down converter produced by Monolithic Power Systems Inc. This device is designed to provide a wide operating input range of 4.0V to 32V and an output voltage range of 0.5V to 30V, making it versatile for various power supply applications. The MP2491CGQB-Z features constant-on-time (COT) control, which ensures fast transient response, easy loop design, and tight output regulation. It is available in a compact QFN-13 (2.5mmx3mm) package, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Monolithic Power Systems | |
| Package/Case | QFN-13 (2.5mmx3mm) | |
| Operating Input Range | 4.0V to 32V | |
| Output Voltage Range | 0.5V to 30V | |
| Output Current | 6A | |
| Switching Frequency | 490kHz | |
| Internal MOSFET Switches | 33mΩ/22mΩ | |
| Quiescent Current (IQ) | 450µA | |
| RoHS Status | Lead free/RoHS Compliant |
Key Features
- Constant-on-Time (COT) Control for fast transient response and easy loop design
- Two dedicated voltage scaling control pins
- Slew rate control during Dynamic Voltage Scaling (DVS)
- Low dropout mode operation
- EN shutdown discharge
- Output over-voltage protection (OVP)
- Adjustable auto-PFM/PWM mode or forced PWM mode
- Adjustable current limit
- Power good (PG) indication
Applications
- TVs and Monitors
- Multifunction Printers (MFP) Power Supplies
- USB Power Supplies with Power Delivery (PD)
- Automotive Cigarette Lighter Adapters
Q & A
- What is the operating input voltage range of the MP2491CGQB-Z?
The operating input voltage range is 4.0V to 32V.
- What is the output voltage range of the MP2491CGQB-Z?
The output voltage range is 0.5V to 30V.
- What is the maximum output current of the MP2491CGQB-Z?
The maximum output current is 6A.
- What is the switching frequency of the MP2491CGQB-Z?
The switching frequency is fixed at 490kHz.
- Does the MP2491CGQB-Z have over-voltage protection?
Yes, it includes output over-voltage protection (OVP).
- What package type is the MP2491CGQB-Z available in?
The MP2491CGQB-Z is available in a QFN-13 (2.5mmx3mm) package.
- Is the MP2491CGQB-Z RoHS compliant?
Yes, the MP2491CGQB-Z is lead-free and RoHS compliant.
- What are some of the key applications for the MP2491CGQB-Z?
Key applications include TVs, monitors, MFP power supplies, USB power supplies with PD, and automotive cigarette lighter adapters.
- Does the MP2491CGQB-Z support dynamic voltage scaling?
Yes, it supports dynamic voltage scaling with slew rate control during DVS.
- How can I obtain detailed information about the MP2491CGQB-Z?
You can find detailed information through the datasheet available on the manufacturer's website or through distributors like Jotrin, X-On Electronics, and Newark).
