Overview
The LM2576D2T-012 is a step-down (buck) switching regulator produced by ON Semiconductor. This integrated circuit is designed for easy and convenient implementation in switch-mode power supplies. It features a fixed output voltage of 12V and is capable of delivering up to 3A of output current. The device is housed in a D²Pak (TO-263) package, which is suitable for surface mount technology (SMT). The LM2576D2T-012 is known for its high efficiency, reliability, and robust protection features, making it a versatile component for various power management applications.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Manufacturer Part Number | LM2576D2T-012 | |
| Manufacturer | ON Semiconductor | |
| Type | Step-Down (Buck) Regulator | |
| Internal Switch(s) | Yes | |
| Synchronous Rectifier | No | |
| Number Of Outputs | 1 | |
| Voltage - Output | 12V | V |
| Current - Output | 3A | A |
| Frequency - Switching | 52kHz | kHz |
| Voltage - Input | 7 ~ 40 V | V |
| Operating Temperature | -40°C ~ 125°C | °C |
| Mounting Type | Surface Mount | |
| Package / Case | D²Pak, TO-263 (5 leads + tab) | |
| Lead Free Status / RoHS Status | Contains lead / RoHS non-compliant |
Key Features
- Fixed output voltage of 12V with ±4% tolerance over line and load conditions
- Guaranteed 3.0 A output current
- Wide input voltage range from 7V to 40V
- 52 kHz fixed frequency internal oscillator with ±10% tolerance over the operating temperature range
- TTL shutdown capability with low power standby mode (80 μA typical standby current)
- High efficiency and use of readily available standard inductors
- Thermal shutdown and cycle-by-cycle current limiting for protection under fault conditions
- Moisture Sensitivity Level (MSL) equals 1
- Surface mount technology (SMT) compatible
Applications
- Simple high-efficiency step-down (buck) regulators
- Efficient pre-regulator for linear regulators
- On-card switching regulators
- Positive to negative converter (buck-boost)
- Negative step-up converters
- Power supply for battery chargers
Q & A
- What is the output voltage of the LM2576D2T-012?
The output voltage of the LM2576D2T-012 is 12V with a ±4% tolerance over line and load conditions.
- What is the maximum output current of the LM2576D2T-012?
The maximum output current of the LM2576D2T-012 is 3A.
- What is the input voltage range for the LM2576D2T-012?
The input voltage range for the LM2576D2T-012 is from 7V to 40V.
- What is the switching frequency of the LM2576D2T-012?
The switching frequency of the LM2576D2T-012 is 52 kHz with a ±10% tolerance over the operating temperature range.
- Does the LM2576D2T-012 have thermal shutdown protection?
Yes, the LM2576D2T-012 includes thermal shutdown protection for full protection under fault conditions.
- What is the operating temperature range of the LM2576D2T-012?
The operating temperature range of the LM2576D2T-012 is from -40°C to 125°C.
- Is the LM2576D2T-012 RoHS compliant?
No, the LM2576D2T-012 contains lead and is RoHS non-compliant.
- What type of package does the LM2576D2T-012 use?
The LM2576D2T-012 is housed in a D²Pak (TO-263) package with 5 leads + tab.
- Does the LM2576D2T-012 support TTL shutdown capability?
Yes, the LM2576D2T-012 supports TTL shutdown capability with a low power standby mode.
- What is the typical standby current of the LM2576D2T-012 in shutdown mode?
The typical standby current of the LM2576D2T-012 in shutdown mode is 80 μA).
