Boost Your Designs with Slkor SL27511 — A Powerful Alternative to TI UCC27511DBVR

Slkor SL27511 — Reliable Alternative to TI UCC27511DBVR 24V Single-Channel Low-Side Gate Driver

The Slkor SL27511 is a high-performance, cost-effective alternative to Texas Instruments’ UCC27511DBVR. Designed for efficient low-side gate driving applications, it offers stable and reliable operation.

Key Specifications:

  • Supply Voltage (VDD): 24V
  • Output Current (IO): 4A
  • Quiescent Current (IDDq): 145μA
  • Operating Temperature (TA): up to 125°C
  • Package: SOT-23–6

Description

The SL27511 is a single-channel, high-speed, low-side gate driver capable of delivering up to 4A peak sourcing and 8A peak sinking current, making it ideal for efficiently and safely driving MOSFETs, IGBTs, and emerging wide bandgap power devices such as GaN. Featuring low propagation delay and a compact SOT-23–6 package, the SL27511 supports MOSFET switching frequencies up to several hundred kHz.

Designed for demanding applications such as synchronous rectification in servers and communication power supplies, the SL27511 helps minimize dead time, directly improving converter efficiency. Its wide supply voltage range (4.5V to 20V recommended, up to 24V maximum) ensures compatibility with both MOSFET and GaN devices. An integrated undervoltage lockout (UVLO) circuit guarantees safe operation under abnormal conditions.

The driver also supports an input voltage range from -5V to 24V, making it robust against voltage overshoots caused by parasitic inductance. The input threshold is fully compatible with TTL and CMOS logic levels.

Features

  • Compact 6-pin SOT-23 package
  • 4A peak sourcing current, 8A peak sinking current
  • Wide VDD supply range: up to 24V (Recommended: 4.5V to 20V)
  • Integrated VDD undervoltage protection
  • Dual-input design supporting positive and inverted inputs, enabling flexible enable/disable control
  • Supports input voltages down to -5V
  • TTL and CMOS input compatible
  • Low propagation delay (typ. < 20ns)
  • Output defaults to low when input is floating
  • Independent source and sink output control for adjustable switching speed
  • -40°C to +125°C operating temperature range

Applications

  • Switching power supplies
  • Motor control
  • AC/DC and DC/DC converters
  • Servers and communication rectifiers
  • EV/HEV inverters and DC/DC converters
  • PV inverters and boost converters
  • Uninterruptible Power Supplies (UPS)
  • Wide bandgap device drivers (GaN/SiC)

Seamless Transition: Slkor Alternative Equivalents for Texas Instruments Components

When it comes to selecting electronic components, having reliable alternatives is key to improving design flexibility, optimizing costs, and strengthening supply chain resilience. Slkor offers a wide range of high-quality replacements for Texas Instruments (TI) components, including DC-DC regulators, gate driver ICs, operational amplifiers, linear regulators, logic gates, and transceivers. Explore our comprehensive list of Slkor equivalents for popular TI parts and unlock new possibilities 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

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