Renesas SLG59M1657V

Overview

SLG59M1657V from Renesas Electronics is a single-channel nFET load switch with 8.4 mΩ R_DS(ON), 4 A continuous current rating, 2.5–5.5 V supply range, -40 °C to 125 °C operation, and integrated two-level current protection - used for controlled power rail switching in portable computing devices.

For engineers reviewing the SLG59M1657V datasheet, SLG59M1657V pinout, SLG59M1657V application, or SLG59M1657V equivalent, key selection criteria include adjustable slew rate via external capacitor, logic-level ON input (0.85 V VIH), thermal shutdown at 150 °C, active current limit of 6.0 A, and ultra-compact 1.5 mm × 2.0 mm FC-TDFN package.

Technical Context

The SLG59M1657V implements a proprietary CuFET n-channel MOSFET with stable 8.4 mΩ R_DS(ON) across 2.5–5.5 V V_DD and -40 °C to 125 °C, enabling high-current efficiency in space-constrained designs. Its dual current-limit architecture distinguishes between short-circuit mode (0.5 A limit when V_S < 250 mV) and active current limit mode (6.0 A limit when V_S > 250 mV).

Thermal protection operates with 150 °C turn-on and 130 °C turn-off hysteresis, and output slew rate is linearly controlled by an external capacitor on the CAP pin (e.g., 4 nF yields ~3 V/ms). The device requires no external gate driver and supports CMOS-compatible 0.85 V logic-high threshold on the ON pin.

Key Specifications

Pinout & Package

SLG59M1657V is housed in an 8-pin FC-TDFN package (JEDEC MO-252), measuring 1.5 mm × 2.0 mm × 0.75 mm, with fused drain (pins 3,4) and fused source (pins 5,6) terminals for low thermal resistance and high-current capability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22916BLYFPR and NCP45520IMNTWG, the SLG59M1657V uniquely combines ultra-compact size (3 mm²), externally adjustable slew rate, and dual-mode current limiting - making it optimal for thermally dense, capacitively loaded mobile power domains where layout space and inrush management are co-constrained.

Availability

SLG59M1657V is available at Aetrix Electronics and suitable for notebook power rail switching, tablet power rail switching, and smartphone power rail switching requiring stable component supply across extended temperature ranges and high-volume production cycles.

Supply support for SLG59M1657V 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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.

The SLG59M1657V belongs to Renesas' GreenFET family of protected load switches, engineered specifically for high-efficiency, space-constrained portable electronics requiring robust fault protection and precise power sequencing.

FAQ

What is the maximum continuous current rating for the SLG59M1657V?

The SLG59M1657V is rated for 4 A continuous current at ambient temperatures up to 125 °C. This rating assumes proper PCB layout with 2 oz. copper, adequate thermal pads under fused D and S pins, and operation within the 2.5–5.5 V V_DD range. Peak current capability reaches 4.5 A for ≤1 ms pulses at 1% duty cycle, per absolute maximum ratings.

How does the SLG59M1657V implement dual current limiting?

The SLG59M1657V uses output voltage (V_S) sensing to select between two protection modes: when V_S < 250 mV (indicating near-short condition), it activates Short Circuit Current Limit (ISCL ≈ 0.5 A); when V_S > 250 mV, it applies Active Current Limit (IACL = 6.0 A). Both modes operate concurrently with thermal shutdown at 150 °C, ensuring layered fault resilience in the SLG59M1657V.

Can the SLG59M1657V operate with a 1.2 V logic controller?

Yes - the SLG59M1657V's ON pin has a guaranteed VIH threshold of 0.85 V, making it directly compatible with 1.2 V, 1.8 V, and 3.3 V logic families without level translation. Its internal ~4 MΩ pull-down ensures reliable low-state default, and the 100 ns ON signal rise/fall time tolerance supports standard GPIO timing.

What capacitor value is recommended on the CAP pin for typical smartphone applications?

For smartphone power rail switching with ~100 µF output capacitance, a 4 nF ceramic capacitor on the CAP pin delivers ~3 V/ms slew rate and ~1 ms total turn-on time (T_{Total_ON}), balancing inrush suppression against responsiveness. Values ≥1.5 nF are required; 12 nF yields slower ramp (~1 V/ms) for ultra-sensitive loads, per SLG59M1657V datasheet Figure 2.

Is the SLG59M1657V RoHS-compliant and halogen-free?

Yes - the SLG59M1657V is Pb-free, halogen-free, and RoHS-compliant per EU Directive 2011/65/EU, as confirmed in its official datasheet (Revision 1.02, Feb 2022) and ordering information. It meets JEDEC moisture sensitivity level (MSL) 1 and is qualified for reflow per IPC/JEDEC J-STD-020.