Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
LM2595S-ADJ/NOPB
Texas Instruments
IC REG BUCK ADJ 1A DDPAK
2250 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 1A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (417 Ratings)
LM2595S-ADJ/NOPB
Product Overview
1362576
DiGi Electronics Part Number
LM2595S-ADJ/NOPB-DGManufacturer
Texas Instruments
LM2595S-ADJ/NOPB
Description
IC REG BUCK ADJ 1A DDPAKInventory
2250 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 1A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
LM2595S-ADJ/NOPB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Tube
Series
SIMPLE SWITCHER®
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Adjustable
Number of Outputs
1
Voltage - Input (Min)
4.5V
Voltage - Input (Max)
40V
Voltage - Output (Min/Fixed)
1.2V
Voltage - Output (Max)
37V
Current - Output
1A
Frequency - Switching
150kHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package
TO-263 (DDPAK-5)
Base Product Number
LM2595
Datasheet & Documents
Manufacturer Product Page
LM2595S-ADJ/NOPB Specifications
HTML Datasheet
LM2595S-ADJ/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-LM2595S-ADJ/NOPB-DG
2156-LM2595S-ADJ/NOPB-TI
-LM2595S-ADJ-NDR
-LM2595S
*LM2595S-ADJ/NOPB
LM2595S-ADJ-NDR
LM2595SADJNOPB
NATNSCLM2595S-ADJ/NOPB
Standard Package
45
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Chaque interaction avec DiGi Electronics me laisse une impression positive durable.
de desembre 02, 2025
I've saved a lot by choosing DiGi Electronics, thanks to their affordable prices and reliable products.
de desembre 02, 2025
Their packaging quality is outstanding, reflecting their commitment to customer satisfaction.
de desembre 02, 2025
Their pricing strategy is unbeatable, making high-quality electronics accessible to everyone.
de desembre 02, 2025
I highly recommend them for their affordability and friendly assistance.
de desembre 02, 2025
Customer service was always ready to assist with a smile.
de desembre 02, 2025
From checkout to delivery, everything happens so fast with DiGi Electronics.
de desembre 02, 2025
DiGi Electronics's logistics services are efficient and dependable.
de desembre 02, 2025
Their reliable shipping ensures I get my products exactly when I need them.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key design-in considerations when using the LM2595S-ADJ/NOPB in a high-temperature industrial environment?
When designing the LM2595S-ADJ/NOPB into high-temperature applications, thermal management is critical due to its non-synchronous topology and TO-263 (DDPAK-5) package. At elevated ambient temperatures near 125°C, ensure adequate PCB copper area for heatsinking the tab and verify power dissipation under worst-case conditions (e.g., high VIN and maximum load). Use a 4-layer board with thermal vias to improve heat transfer. Note that junction-to-ambient thermal resistance can exceed 60°C/W without proper layout, increasing risk of thermal shutdown. Always validate performance with real-world load transients and consider derating output current above 100°C to maintain reliability.
How does the LM2595S-ADJ/NOPB compare to the LM2678-1.5 in terms of efficiency and thermal performance for a 12V to 3.3V step-down conversion?
Compared to the LM2678-1.5, the LM2595S-ADJ/NOPB typically exhibits lower efficiency in a 12V to 3.3V application due to its lower switching frequency (150kHz vs. 500kHz) and lack of synchronous rectification. The resulting higher diode conduction losses increase thermal stress, especially above 500mA loads. While the LM2595S-ADJ/NOPB offers adjustable output and wider VIN range (up to 40V), it requires a Schottky catch diode and generates more heat under medium to heavy loads. For designs prioritizing efficiency and thermal performance, the LM2678-1.5 is preferable, but the LM2595S-ADJ/NOPB remains a robust, lower-cost option for cost-sensitive, lower-duty-cycle applications.
What are the risks of replacing a failed LM2595S-12/NOPB with the adjustable LM2595S-ADJ/NOPB in an existing 12V output design?
Replacing a fixed-output LM2595S-12/NOPB with the adjustable LM2595S-ADJ/NOPB introduces risks if the feedback resistor divider is not properly designed. The adjustable version requires precision resistors (typically 1% tolerance) for stable 12V regulation—using incorrect values or low-tolerance resistors can result in overvoltage conditions damaging downstream circuits. Additionally, parasitic capacitance on the feedback node may affect loop stability. Always verify transient response and load regulation after replacement, and ensure the compensation components match those recommended in TI's application notes for the LM2595S-ADJ/NOPB to avoid oscillations or thermal runaway.
Can the LM2595S-ADJ/NOPB operate reliably in automotive load dump scenarios with input transients up to 40V?
Yes, the LM2595S-ADJ/NOPB can withstand input voltages up to 40V, making it suitable for automotive load dump conditions within that limit. However, sustained exposure to 36–40V at high ambient temperatures increases internal power dissipation and risk of thermal overstress, particularly in non-synchronous buck configurations. To ensure reliability, add an external transient voltage suppressor (TVS) diode on the input to clamp spikes above 40V and use input capacitance with low ESR to reduce ripple. Monitor the junction temperature during cold-crank and load dump events, and verify stability with bulk capacitors at the input, especially in long-wire harness scenarios common in automotive systems using the LM2595S-ADJ/NOPB.
What are the most common PCB layout mistakes that affect the stability of the LM2595S-ADJ/NOPB in switch-mode power supplies?
Common PCB layout errors with the LM2595S-ADJ/NOPB include placing input capacitors too far from the VIN and ground pins, which increases parasitic inductance and leads to voltage ringing and EMI. Another critical mistake is routing the feedback trace near the switch node or inductor, causing noise coupling and output instability. Avoid splitting the ground plane under the IC and ensure the power ground and signal ground are joined at a single point near the input capacitor. The catch diode and inductor should form a tight loop with minimal area to reduce EMI. Following TI's recommended layout in the LM2595S-ADJ/NOPB datasheet is essential—especially keeping the compensation components close to the feedback pin to maintain control loop stability and prevent erratic behavior under load transients.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM2595S-ADJ/NOPB CAD Models
Texas Instruments LM2595S-ADJ/NOPB PCB symbols & footprints
productDetail
