Design Better, Smarter, Faster with Slkor SL27511 - Your Alternative to TI UCC27511DBVR

 Slkor SL27511 — High-Performance Alternative to TI UCC27511DBVR

 The Slkor SL27511 is a powerful and cost-effective single-channel low-side gate driver, engineered as a reliable drop-in alternative to Texas Instruments’ UCC27511DBVR. It delivers efficiency, stability, and durability for demanding power management applications.

Key Highlights

• Wide Supply Voltage (VDD): Up to 24V
• Strong Output Drive (IO): 4A peak current capability
• Ultra-Low Quiescent Current (IDDq): 145 μA for energy efficiency
• Robust Design: Operates up to 125°C
• Compact Package: SOT-23–6 for space-saving designs

Why Choose SL27511?
 ✔ Cost-effective replacement for TI UCC27511DBVR
 ✔ Reliable performance under harsh conditions
 ✔ Optimized for DC-DC converters, motor drives, and switching power supplies

Description

The SL27511 is a high-speed, single-channel low-side gate driver designed for reliable performance in advanced power applications. Delivering up to 4A sourcing and 8A sinking peak current, it efficiently drives MOSFETs, IGBTs, and next-generation wide bandgap devices such as GaN.

With low propagation delay and a compact SOT-23–6 package, the SL27511 enables MOSFET switching at frequencies up to several hundred kHz, ensuring high efficiency in space-constrained designs.

Key Advantages:

• Enhanced Efficiency: Optimized for synchronous rectification in servers and telecom power supplies, reducing dead time and boosting converter performance.
• Wide Voltage Range: 4.5V–20V recommended (24V max), ensuring broad compatibility with both MOSFETs and GaN devices.
• Built-in Protection: Integrated UVLO for safe operation under abnormal conditions.
• Robust Input Tolerance: -5V to 24V input handling minimizes risks from parasitic inductance and voltage overshoot.
• Logic Compatibility: Fully TTL/CMOS compatible input thresholds for design flexibility.

The SL27511 is built to deliver efficiency, safety, and robustness — making it a trusted solution for next-gen power electronics.

Features

• Compact Design: Space-saving 6-pin SOT-23 package for high-density applications
• Powerful Drive Capability: Up to 4A sourcing and 8A sinking peak current for efficient MOSFET/IGBT/GaN control
• Wide Supply Range: Operates from 4.5V to 20V (max 24V) for broad design flexibility
• Built-in Protection: Integrated VDD undervoltage lockout (UVLO) ensures safe operation
• Flexible Control: Dual-input design supports both positive and inverted inputs, enabling easy enable/disable functionality
• Robust Input Tolerance: Handles input voltages down to -5V to guard against overshoot and parasitic effects
• Universal Logic Compatibility: Fully compatible with TTL and CMOS logic levels
• High-Speed Performance: Low propagation delay (<20ns) for faster, more efficient switching
• Failsafe Default: Output automatically defaults to low state when input is floating
• Customizable Switching: Independent source and sink output control for adjustable switching speed
• Wide Operating Range: Reliable operation from -40°C to +125°C

Applications

• Switching Power Supplies — High-efficiency energy conversion
• Motor Drives & Control Systems — Precise and reliable performance
• AC/DC & DC/DC Converters — Optimized for stable power regulation
• Servers & Telecom Equipment — High-speed rectification for data centers and communication networks
• EV/HEV Power Systems — Inverters and DC/DC converters for next-generation vehicles
• Solar (PV) Inverters & Boost Converters — Maximizing renewable energy efficiency
• Uninterruptible Power Supplies (UPS) — Reliable backup power solutions
• Wide Bandgap Device Drivers (GaN/SiC) — Unlocking higher switching speeds and efficiency

Seamless Transition with Slkor: High-Quality Alternatives to Texas Instruments Components

Choosing the right electronic components is critical for innovation, cost control, and supply chain security. Slkor delivers reliable, high-performance alternatives to Texas Instruments (TI) products — helping you design with confidence while reducing costs and mitigating supply risks.

Our portfolio covers a wide range of TI-equivalent parts, including:

• DC-DC Regulators
• Gate Driver ICs
• Operational Amplifiers
• Linear Regulators
• Logic Gates
• Transceivers

With Slkor, you get trusted quality, competitive pricing, and seamless compatibility — unlocking greater design flexibility and ensuring uninterrupted production for your next project.

1. DC-DC Regulators

For power management applications, Slkor provides direct replacements for several Texas Instruments DC-DC regulators:

• LM2575S-5.0 → Slkor Equivalent: LM2575S-5.0 (TO-263–5)
• LM2576S-5.0 → Slkor Equivalent: LM2576S-5.0 (TO-263–5)
• LM2596S-5.0 → Slkor Equivalent: LM2596S-5.0 (TO-263–5)

2. Gate Driver ICs

Gate driver ICs are crucial for controlling power transistors efficiently. Slkor alternatives include:

• UCC27511DBVR → SL27511 (SOT-23)
• UCC27525D → SL27525 (SOP-8)
• UCC27517DBVR → SL27517 (SOT-23)
• UCC27524 → SL27524 (SOP-8)
• UCC27523 → SL27523 (SOP-8)
• UCC5350 → SL5350SDR / SL5350MDR (SOP-8)
• UCC27531DBVR → SL27531 (SOT-23–6)
• UCC27624DR → SL27624MS (SOP-8)
• UCC27714 → SL27714 (SOP-14)

3. General-Purpose Operational Amplifiers (Op-Amps)

Slkor provides replacements for widely used TI op-amps:

• RC4558DRG4 → SL4558S (SOP-8)
• LM124DR → LM124D (SOP-14)
• LM224DR → LM224D (SOP-14)
• LM324DR → LM324D (SOP-14)
• LMV358QD → LMV358 (SOP-8)
• LM2904P → LM2904 (DIP-8)
• TLV9062 → SL9062C (SOP-8) / SL9062D (SOT-23–8L)

For precision applications, Slkor offers:

• OPA333 → SLA333 (MSOP-8)

4. Linear Regulators (LDOs)

Slkor provides equivalent alternatives to TI’s low-dropout (LDO) regulators:

• LP5907MFX-3.3 → SL9013M33SE (SOT-23–5)
• LP2992IM5–3.3 → SL54M33SE (SOT-23–5)
• TLE4275-Q1/TPS7B87-Q1 → SL4275 (TO-252–5)
• TLE4275-Q1 → SL4275-G (TO-263–5)
• TLE4264/LM2936Q → SL4264–2 (SOT-223)
• TL720M05-Q1 → SL42744D (TO-252–3)
• TPS7B86-Q1 → SL42764 (TO-252–5)

5. Real-Time Clock (RTC) & Timers

For applications requiring precision timing:

• LM555CMX → SL555S (SOP-8)

6. Logic Gates

Logic ICs are essential for digital circuit design. Slkor equivalents include:

• SN74HC164DR → 74HC164D (SOP-14)
• CD4001BM → CD4001BM (SOP-14)
• SN74LVC1G11 → 74LVC1G11S6 (SOT-23–6)
• SN74LVC1G10 → 74LVC1G10S6 (SOT-23–6)
• SN74LVC1G32 → 74LVC1G32S5 (SOT-23–5)
• SN74LVC1G27 → 74LVC1G27S6 (SOT-23–6)
• SN74LVC1G34 → 74LVC1G34S5 (SOT-23–5)
• SN74LVC2G34 → 74LVC2G34S6 (SOT-23–6)

7. CAN and RS-485 Transceivers

For communication and networking applications, Slkor offers:

• SN65HVD230DR → SL65HVD230DR (SOP-8)
• SN65HVD232DR → SL65HVD232DR (SOP-8)
• SN65HVD233DR → SL65HVD233DR (SOP-8)
• SN65HVD234DR → SL65HVD234DR (SOP-8)
• SN65HVD08DR → SL65HVD08DR (SOP-8)

8. Analog Switches

For signal switching applications, Slkor provides:

• TS5A3157 → SL3157XC6 (SC-70–6) / SL3157XT6 (SOT-23–6)

9. Level Converters

For voltage translation applications:

• TXS0101 → SL0101S6 (SOT-23–6)
• TXS0102 → SL0102S8 (SOT-23–8)

For more information please reach out : Sales03@slkormicro.com