Overview
The SG2525ADW is a push-pull regulator positive output step-up/step-down DC-DC controller IC produced by Microchip Technology. This integrated circuit is designed to offer improved performance and reduced external component count in various switching power supply applications. It operates within a wide input voltage range and features a robust set of control and protection mechanisms, making it suitable for a variety of power management needs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Package/Case | 16-SOIC (0.154", 3.90mm Width) |
| Input Voltage (Vcc/Vdd) | 8 V ~ 35 V |
| Switching Frequency | 100 Hz ~ 350 kHz |
| Duty Cycle (Max) | 49% |
| Output Type | Transistor Driver |
| Output Configuration | Positive |
| Topology | Push-Pull |
| Number of Outputs | 2 |
| Operating Temperature | -25°C ~ 85°C (TA) |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Soft Start |
| Rise Time | 100 ns |
| Fall Time | 50 ns |
| Operating Supply Current | 14 mA |
Key Features
- Wide Input Voltage Range: Operates from 8 V to 35 V.
- Adjustable Switching Frequency: From 100 Hz to 350 kHz.
- Soft Start and Shutdown: Features built-in soft-start circuitry and shutdown control.
- Synchronous Rectifier: Supports synchronous rectification for improved efficiency.
- Internal Reference Voltage: A stable 5.1 V reference voltage trimmed to ±1%.
- Under-Voltage Lockout: Protects against sub-normal input voltages with hysteresis for jitter-free operation.
- Pulse-by-Pulse Shutdown: Instantaneous turn-off and soft-start recycle capabilities.
- Output Drivers: Totem-pole design capable of sourcing or sinking in excess of 200 mA.
Applications
The SG2525ADW is versatile and can be used in a variety of power supply applications, including:
- Switching power supplies for industrial and consumer electronics.
- Step-up and step-down DC-DC converters.
- Power supplies for telecommunications and networking equipment.
- Automotive power systems requiring robust and efficient power management.
- Medical devices and equipment that demand reliable power supply solutions.
Q & A
- Q: What is the input voltage range of the SG2525ADW?
A: The SG2525ADW operates within an input voltage range of 8 V to 35 V.
- Q: What is the maximum duty cycle of the SG2525ADW?
A: The maximum duty cycle is 49%.
- Q: Does the SG2525ADW support synchronous rectification?
A: Yes, it supports synchronous rectification.
- Q: What is the operating temperature range of the SG2525ADW?
A: The operating temperature range is -25°C to 85°C.
- Q: What are the key control features of the SG2525ADW?
A: The key control features include enable, soft start, and shutdown.
- Q: How many outputs does the SG2525ADW have?
A: The SG2525ADW has 2 outputs.
- Q: What is the typical operating supply current of the SG2525ADW?
A: The typical operating supply current is 14 mA.
- Q: Does the SG2525ADW have built-in under-voltage lockout protection?
A: Yes, it has under-voltage lockout protection with hysteresis.
- Q: Can the SG2525ADW be synchronized to an external clock?
A: Yes, it can be synchronized to an external system clock.
- Q: What is the package type of the SG2525ADW?
A: The package type is 16-SOIC.
