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LM2576SX-ADJ
The LM2576SX-ADJ converter is housed in a 6-pin DDPAK package, making it easy to integrate into various electronic applicationsLM2576SX-ADJ
The LM2576SX-ADJ converter is housed in a 6-pin DDPAK package, making it easy to integrate into various electronic applications
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Manufacturer Part # : LM2576SX-ADJ
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Package/Case: TO263
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Brand: TEXAS INSTRUMENTS
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Product Categories : Voltage Regulators - DC DC Switching Regulators
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LM2576SX-ADJ DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $0.768 | $0.77 |
| 10 | $0.629 | $6.29 |
| 30 | $0.559 | $16.77 |
| 100 | $0.489 | $48.90 |
| 500 | $0.448 | $224.00 |
| 1000 | $0.426 | $426.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
The LM2576SX-ADJ is a versatile voltage regulator from Texas Instruments, known for its efficiency and reliability in regulating voltage in electronic circuits. With the capability to handle input voltages up to 40V and provide adjustable output voltages from 1.23V to 37V, as well as a maximum output current of 3A, it is a versatile power solution for a variety of applications. Additionally, the device features built-in thermal shutdown and current limiting protection mechanisms, ensuring safe and reliable operation even in challenging environments. Its TO-263 package provides efficient heat dissipation and a compact size, making it well-suited for space-constrained designs
Key Features
- Newer products available:
- LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-MHz synchronous converter
- LM76003 3.5 to 60-V, 3.5-A, 300-kHz to 2.2-MHz synchronous converter
- For faster time to market:
- TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module
- 3.3-V, 5-V, 12-V, 15-V, and adjustable output versions
- Adjustable version output voltage range,1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditions
- Specified 3-A output current
- Wide input voltage range: 40 V Up to 60 V for HV version
- Requires only four external components
- 52-kHz fixed-frequency internal oscillator
- TTL-shutdown capability, low-power standby mode
- High efficiency
- Uses readily available standard inductors
- Create a custom design using the LMR33630 or LM76003 with theWEBENCH Power Designer
Application
- Simple high-efficiency step-down (buck) regulator
- Efficient pre-regulator for linear regulators
- On-card switching regulators
- Positive to negative converter (Buck-Boost)
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | No | Rohs Code | No |
| Part Life Cycle Code | Active | Part Package Code | D2PAK |
| Pin Count ! | 4 | Reach Compliance Code | |
| Analog IC - Other Type | SWITCHING REGULATOR | Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION | Input Voltage-Max | 40 V |
| Input Voltage-Min | 8 V | Input Voltage-Nom | 12 V |
| JESD-30 Code | R-PSSO-G5 | JESD-609 Code | e0 |
| Length | 10.16 mm | Moisture Sensitivity Level | 3 |
| Number of Functions | 1 | Number of Terminals | 5 |
| Operating Temperature-Max | 125 °C | Operating Temperature-Min | -40 °C |
| Output Current-Max | 7.5 A | Package Body Material | PLASTIC/EPOXY |
| Package Code | TO-263 | Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE | Peak Reflow Temperature (Cel) | 235 |
| Seated Height-Max | 4.8 mm | Surface Mount ! | YES |
| Switcher Configuration | BUCK | Switching Frequency-Max | 63 kHz |
| Temperature Grade ! | AUTOMOTIVE | Terminal Finish | TIN LEAD |
| Terminal Form ! | GULL WING | Terminal Pitch ! | 1.7 mm |
| Terminal Position | SINGLE | Time@Peak Reflow Temperature-Max (s) | 30 |
| Width | 8.635 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM2576SX-ADJ?
The LM2576SX-ADJ is a step-down voltage regulator designed by Texas Instruments. It is a versatile and efficient regulator that accepts a wide input voltage range and provides a stable adjustable output voltage, making it suitable for various power supply applications.
How Does LM2576SX-ADJ Work?
The LM2576SX-ADJ operates as a switch-mode buck regulator, converting a higher input voltage to a lower, adjustable output voltage. It uses pulse-width modulation (PWM) to control the duty cycle of the switching transistor and regulate the output voltage. The regulator features thermal shutdown and current limiting protection mechanisms for safe operation.
How Many Pins does LM2576SX-ADJ have and What are the Functions of the Pinout Configuration?
The LM2576SX-ADJ comes in a TO-263 package with 5 pins. The pinout configuration includes:
- VIN: Input voltage pin.
- GND: Ground pin.
- VOUT: Adjustable output voltage pin.
- ON/OFF: On/Off control pin.
- ADJ: Feedback pin for adjusting the output voltage.
What are the Pros and Cons of LM2576SX-ADJ?
Pros:
- Wide Input Voltage Range: Accepts a wide input voltage range for versatility.
- Adjustable Output Voltage: Provides flexibility in selecting the desired output voltage.
- Efficiency: Offers high efficiency in converting input power to regulated output voltage.
- Compact Package: The TO-263 package is space-saving and suitable for compact designs.
- Protection Features: Includes thermal shutdown and current limiting for device protection.
Cons:
- Switching Noise: Being a switch-mode regulator, it may introduce switching noise in sensitive applications.
- Complexity: Requires careful consideration of layout and external components for optimal performance.
- Heat Dissipation: May require a heat sink for heat dissipation at higher output currents.
Are There Any Equivalents/Alternatives to LM2576SX-ADJ for Recommendation?
- The LM2596 from Texas Instruments is a similar step-down regulator with fixed output voltage options.
- Alternatives to the LM2576SX-ADJ include the LM2940 from Texas Instruments and the MP2307 from Monolithic Power Systems.
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