LM2596HV HW-677 Adjustable Step-Down DC To DC Buck Converter Module
LM2596HV overview
The LM2596HV is an HW-677 Adjustable Step-Down DC To DC Buck Converter Module made by onsemi, supplied in a D2PAK package. Main ratings: Rectification non-synchronous rectification; Input voltage 4.5V-60V; Output Voltage 1.3V-30V; Output current 3A maximum. The absolute maximum ratings table on this page lists the 9 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the LM2596HV pinout, key specifications and maximum ratings, with the full datasheet PDF to preview below or download.
LM2596HV module is a high input voltage version of the LM2596 Module. The LM2596HV module is a DC to DC converter buck converter module with an input voltage range of 4.5 volts to 50 volts and an output of 3 volts to 40 volts. This output is variable and can be varied using the onboard multi-turn potentiometer. Buck Converter Module is capable of driving a load up to 3A with high efficiency. When the output current required is greater than 2.5A(10W) an external heatsink is suggested
Key specifications
Datasheet
LM2596HV features
- High efficiency up to 92%.
- 4.5 Volt - 50 Volt adjustable input voltage range.
- 3 volt - 40 Volts adjustable output voltage range.
- With over-current and over-temperature protection, safe for use.
- Fine workmanship, long life span.
- It can set the float voltage and charging current.
- Special design enhanced heating radiating
- Non-isolated constant voltage module
LM2596HV pinout
| Name | Description |
|---|---|
| V-IN | The input voltage that is to be regulated |
| V-OUT | Stepped down Regulated Output Voltage |
| Ground | Connected to system ground |
| Feedback | Sets the output voltage using divider network using output voltage feedback |
| ON/OFF | Enable pin, should be grounded for normal operation |
LM2596HV specifications
| Rectification | non-synchronous rectification |
|---|---|
| Input voltage | 4.5V-60V |
| Output Voltage (Less than input) | 1.3V-30V |
| Output current | 3A maximum |
| Conversion efficiency | 92% (maximum) |
| Switching frequency | 52KHz |
| Output ripple | 50mV (maximum) 20M-bandwidth |
| Load regulation | ± 0.5% |
| Voltage regulation | ± 2.5% |
| Operating temperature | -40 ℃ to +85 ℃ |
Absolute maximum ratings
| Parameter | Value | Unit |
|---|---|---|
| Maximum Supply Voltage | 45 | V |
| in ON/OFF Pin Input Voltage | -0.3 V ≤ V ≤ +V | V |
| in Output Voltage to Ground (Steady-State) | -1.0 | V |
| Thermal Resistance, Junction-to-Ambient | 65 | °C/W |
| Thermal Resistance, Junction-to-Case | 5.0 | °C/W |
| Storage Temperature Range | -65 to +150 | °C |
| stg Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 k) | 2.0 | kV |
| Lead Temperature (Soldering, 10 seconds) | 260 | °C |
| Maximum Junction Temperature | 150 | °C |
LM2596HV applications
- Simple High−Efficiency Step−Down (Buck) Regulator ORDERING INFORMATION
- Efficient Pre−Regulator for Linear Regulators See detailed ordering and shipping information in the package
- On−Card Switching Regulators
- Positive to Negative Converter (Buck−Boost) DEVICE MARKING INFORMATION
- Negative Step−Up Converters See general marking information in the device marking
- Power Supply for Battery Chargers section on page 23 of this data sheet.
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