Renesas SLG5NTH1011V

Overview

SLG5NTH1011V from Renesas Electronics is a high-voltage, reverse-blocking NMOS load switch with 50 mΩ R_DSON, 3 A continuous current rating, and 4.5 V to 22 V input voltage range. It integrates VIN overvoltage lockout selection (6 V / 10.8 V / 14.4 V / 24 V), analog MOSFET current monitor output (10 µA/A), and active current limiting via external RSET resistor - deployed in point-of-load power distribution for telecom and high-performance computing systems.

For engineers reviewing the SLG5NTH1011V datasheet, SLG5NTH1011V pinout, SLG5NTH1011V application, or SLG5NTH1011V equivalent, key selection considerations include its back-to-back FET reverse-current blocking, thermal SOA protection (5 W threshold), capacitor-adjustable slew rate control via CAP pin, and 18-pin STQFN package with fused VIN/VOUT power pins.

Technical Context

The SLG5NTH1011V implements a proprietary dual-nFET architecture enabling true reverse-current blocking when OFF, eliminating need for external diodes. Its gate driver uses an internal charge pump to sustain full enhancement across 4.5–22 V input range while maintaining stable R_DSON (<0.05 mΩ/V ΔR_DSON/ΔV_IN).

Protection logic combines three independent layers: resistor-programmable active current limit (1–3 A), fixed short-circuit current limit (~0.5 A), and thermal SOA shutdown at 125 °C with auto-restart after 160 ms cooldown. Fault detection propagates to open-drain FAULT pin within 80 µs.

Key Specifications

Pinout & Package

SLG5NTH1011V is housed in a 1.6 × 3.0 mm, 0.4 mm pitch, 18-pin STQFN package with exposed thermal pad. VIN and VOUT are each implemented as five parallel pins (pins 4–8 and 9–13) to minimize trace resistance and enhance current handling and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar load switch applications.

Compared with TPS22990DMLR and RTQ2132BGQW, SLG5NTH1011V uniquely delivers reverse-current blocking, programmable OVLO, analog current monitoring, and thermal SOA protection - making it the only option qualified for 22 V industrial and telecom point-of-load switching with diagnostic capability.

Availability

SLG5NTH1011V is available at Aetrix Electronics and suitable for telecom equipment, high-performance computing, and multifunction printer designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SLG5NTH1011V includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power, and connectivity solutions for industrial, automotive, and infrastructure markets.

The SLG5NTH1011V belongs to Renesas' High Voltage GreenFET family - engineered specifically for robust, self-protected load switching in 4.5–29 V systems where reliability, thermal resilience, and diagnostic visibility are critical.

FAQ

What is the maximum input voltage the SLG5NTH1011V can withstand?

The SLG5NTH1011V has an absolute maximum VIN rating of 30 V continuous and 32 V for pulses under 0.1 s. Its operational input range is 4.5 V to 22 V, and its VIN overvoltage lockout is configurable up to 24 V (SEL[1,1]). Exceeding 30 V risks permanent damage per Absolute Maximum Ratings - always verify system transients remain within this limit. The SLG5NTH1011V's design ensures safe operation within its specified 4.5–22 V window.

How does the SLG5NTH1011V achieve reverse-current blocking?

The SLG5NTH1011V uses a back-to-back n-channel MOSFET configuration - two series-connected nFETs with opposing drain-source orientations. When disabled (ON = LOW), both FETs are off, creating a bidirectional blocking path that limits reverse leakage to ≤3 µA at 22 V. This eliminates external diodes and prevents backfeed from downstream capacitors or powered subsystems. The SLG5NTH1011V's architecture inherently supports this function without additional components.

Can the SLG5NTH1011V's current limit be adjusted, and how precise is it?

Yes - the SLG5NTH1011V's active current limit is set by an external 1%-tolerance resistor on the RSET pin (30–91 kΩ), yielding 1–3 A limits. Accuracy is ±15% over temperature and input voltage per datasheet Note 3. For example, a 30.1 kΩ resistor targets 3.2 A nominal limit. The SLG5NTH1011V also includes a fixed ~0.5 A short-circuit limit independent of RSET. Calibration is unnecessary due to factory-trimmed current-sense circuitry inside the SLG5NTH1011V.

What is the purpose of the CAP pin on the SLG5NTH1011V?

The CAP pin connects to an external 10–20 nF ceramic capacitor that controls the VOUT slew rate and total turn-on time (T_{TOTAL_ON}). Larger capacitance slows the rise time, reducing inrush current and preventing false triggering of current limit or SOA protection during startup into capacitive loads. The SLG5NTH1011V's internal linear ramp generator uses this capacitor to shape the gate drive - ensuring monotonic VOUT ramping per Safe Start-up Loading guidelines in the datasheet.

Does the SLG5NTH1011V require an external power supply for its control circuitry?

No - the SLG5NTH1011V is self-powered from its VIN pin. Its internal charge pump and gate driver derive all operating energy from the input rail (4.5–22 V), eliminating need for auxiliary bias supplies. Quiescent current is 0.5–0.6 mA when enabled and only 1–3 µA in OFF mode. This simplifies system design and reduces bill-of-materials count - the SLG5NTH1011V operates fully autonomously once VIN and ON signals are applied.