# Power IC voltage regulator Texas Instruments LM2577T-ADJ/NOPB — adjustable DC/DC switching regulator, boost/flyback/forward, TO-220-5

**URL:** https://aio.lv/en/product--texas-instruments-lm2577t-adjnopb--1774127
**Data updated:** 2026-03-27 13:13 (EET)
**Category:** Server Parts & Components
**Manufacturer:** texas instruments
**Manufacturer code:** LM2577T-ADJ/NOPB
**EAN:** 2050002134218
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--texas-instruments-lm2577t-adjnopb--1774127

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Adjustable DC/DC switching voltage regulator Texas Instruments LM2577T-ADJ/NOPB in TO-220-5 package. Designed for boost, flyback and forward converter topologies, this power IC provides adjustable output via external components for step-up and isolated converter designs. Suitable for power supply design, battery-powered systems and industrial converters requiring configurable switched-mode regulation.

## Long description

The Texas Instruments LM2577T-ADJ/NOPB is an adjustable DC/DC switching regulator in a TO-220-5 package designed for boost, flyback and forward converter topologies. This power IC delivers switched-mode regulation with an externally adjustable output, enabling step-up and isolated converter designs. It is intended for use in power supply design and battery-powered systems where an efficient, configurable boost regulator is required.
Advantages
The device provides adjustable output voltage through external resistors and components, allowing precise regulation across a range of applications. Its TO-220-5 package offers ease of mounting and thermal handling for moderate power levels. Designed for multiple converter topologies (boost, flyback, forward), the regulator supports flexible circuit topologies and helps simplify designs that require step-up or isolated outputs. The integrated switching controller reduces component count compared with discrete implementations.
Suitable for
 Design of step-up (boost) power supplies
 Flyback and forward isolated converter designs
 Battery-powered systems needing an adjustable DC/DC boost stage
 Industrial power converters and embedded power modules
Key specifications
 Topology support: boost, flyback, forward converter
 Output: externally adjustable via resistive network and components
 Package type: TO-220-5, suitable for through-hole mounting
 Function: switching regulator (step-up / boost and isolated converter control)
 Application domain: power supply design, battery systems, industrial converters
How to use
Implement the LM2577T-ADJ/NOPB by following the converter topology recommended for the intended application (boost, flyback or forward). Select the inductor, diode, capacitors and the feedback resistor network to set the required output voltage and to meet current and ripple specifications. Mount the TO-220-5 package on a board with adequate copper area or a heatsink if increased thermal dissipation is expected. Observe standard layout practices for switching regulators: keep high-current loops short, place the input and output capacitors close to the device, and provide a stable ground return.
Usage recommendations
Use the regulator within its specified input voltage and load current ranges, and follow the manufacturer’s recommended component values and PCB layout guidelines to ensure stable operation and reliable thermal performance. For battery-powered applications, verify startup behaviour and efficiency across the expected input range.

## FAQ

### How much does the Voltage regulator Texas Instruments LM2577T-ADJ/NOPB cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 27.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All texas instruments products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized texas instruments service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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