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Renesas SLG59M1442V
- Part No.:
- SLG59M1442V
- Manufacturer:
- Renesas
- Package:
- 4-UFDFN
- Datasheet:
-
SLG59M1442V.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 4STDFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,145
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Product details
Overview
SLG59M1442V from Renesas is a single-channel, N-channel high-side load switch optimized for low-voltage, high-current power rail control. It delivers 4.5 A maximum continuous output current, ultra-low 4.2 mΩ on-resistance at 5 V input, and operates across 2.5 V to 5.5 V supply range with -40 °C to +85 °C industrial temperature rating. It integrates charge pump, capacitor-controlled slew rate, output discharge, thermal shutdown, and UVLO - deployed in enterprise SSDs and PCIe adapter cards.
For engineers reviewing the SLG59M1442V datasheet, SLG59M1442V pinout, SLG59M1442V application, or SLG59M1442V equivalent, key selection criteria include its 4.2 mΩ RDS(ON) stability over voltage/temperature, integrated output discharge for safe power sequencing, and STQFN-16 (1.6 × 2.5 mm) package compatibility with space-constrained embedded power domains.
Technical Context
The SLG59M1442V uses an internal charge pump to drive the N-channel MOSFET gate above VIN, enabling full enhancement with low RDS(ON) across its 2.5–5.5 V input range. Its slew rate is set by an external capacitor connected to the SLEW pin, allowing precise inrush current control during turn-on.
It features undervoltage lockout (UVLO) below ~2.2 V, thermal shutdown with auto-restart, and built-in output discharge via internal NMOS when disabled. Protection includes fixed short-circuit current limit (SCL) and adjustable active current limit (ACL(R)) via external resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 4.5 A continuous - supports high-current rails in SSDs and PCIe add-in cards without external heatsinking. |
| RDS(ON) | 4.2 mΩ at VIN = 5 V, TA = 25 °C - enables <15 mV dropout at 3.5 A, minimizing power loss and self-heating. |
| Input Voltage Range | 2.5 V to 5.5 V - compatible with core logic rails (3.3 V, 5 V) and battery-backed systems down to 2.5 V. |
| Operating Temperature | -40 °C to +85 °C - qualified for industrial-grade embedded storage and computing applications. |
| Package | STQFN-16 (1.6 × 2.5 mm, 0.5 mm pitch) - ultra-small footprint with low thermal resistance (θJA ≈ 70 °C/W). |
| Slew Rate Control | Capacitor-adjustable via SLEW pin - allows tuning of turn-on dV/dt to limit inrush into large capacitive loads (e.g., 1000 µF SSD bulk caps). |
| Output Discharge | Integrated NMOS discharge path - actively pulls VOUT to GND within 1 ms after disable, preventing floating outputs and ensuring clean power-down sequencing. |
Pinout & Package
SLG59M1442V is housed in a 16-pin STQFN package (1.6 mm × 2.5 mm, 0.5 mm pitch) with wettable flanks and exposed thermal pad. The package supports automated optical inspection (AOI) and provides low thermal resistance for sustained 4.5 A operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power Input | High-side input rail connection; accepts 2.5–5.5 V; feeds internal charge pump and power FET source. |
| OUT | Power Output | Switched output node; connects to load; features integrated discharge FET to GND when EN = low. |
| EN | Enable Input | Active-HIGH digital control (1.2 V logic-compatible); internally pulled down; controls main FET and discharge FET. |
| GND | Ground Reference | Power and signal ground return; tied to exposed thermal pad for optimal heat dissipation. |
| VDD | Bias Supply | Internal LDO input; must be connected to IN or separate 2.5–5.5 V supply; powers control circuitry and charge pump. |
| SLEW | Slew Rate Control | Connects external capacitor to GND; sets turn-on dV/dt; larger C = slower ramp = lower inrush peak. |
| ACL | Adjustable Current Limit | Resistor-to-GND sets active current limit threshold between 1 A and 6 A; enables precise overcurrent protection tuning. |
| PG | Power Good Output | Open-drain status signal asserted HIGH when OUT is stable and within regulation; used for system power sequencing feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-stable RDS(ON) | 4.2 mΩ at 5 V with <±10% variation over -40 °C to +85 °C and 2.5–5.5 V - ensures predictable conduction loss across operating conditions. |
| Integrated Charge Pump | Self-contained gate driver that boosts gate voltage >VIN - eliminates need for external boost supply while maintaining low RDS(ON). |
| Configurable Inrush Control | SLEW pin accepts 1–10 nF capacitor to adjust turn-on time from ~100 µs to >1 ms - prevents supply sag and voltage droop on shared rails. |
| Comprehensive Protection Suite | UVLO, thermal shutdown with auto-restart, short-circuit current limit (SCL), and resistor-adjustable active current limit (ACL(R)) - reduces external protection components. |
| Output Discharge & PG Signal | Internal 120 Ω discharge FET + open-drain PG output - enables safe, sequenced power-down and system-level status monitoring without added discretes. |
Applications
| Enterprise SSD Power Management | PCIe Adapter Card Rail Switching |
|---|---|
|
Use Scenario: Isolating 3.3 V VCC power domain for NAND flash controller and DRAM cache during hot-plug or firmware update. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery timing; enables controlled ramp-up and fast discharge before reconfiguration. Use Value: Prevents bus contention and data corruption by eliminating floating VCC during reset; 4.2 mΩ RDS(ON) minimizes voltage drop under 4 A SSD peak load. |
Use Scenario: Enabling/disabling auxiliary 12 V or 3.3 V rails on PCIe add-in cards (e.g., NVMe accelerators, FPGA co-processors). IC Role / Device Role / Timing Role: Primary high-side power switch with programmable slew and fault signaling for system-level power management unit (PMU) coordination. Use Value: Integrated PG signal synchronizes rail enable with host BIOS enumeration; output discharge ensures clean de-assertion before card removal. |
| Notebook Platform Subsystem Power Gating | Industrial Embedded Computing Power Sequencing |
|
Use Scenario: Gating power to USB-C PD controller, display interface (eDP/LVDS), or audio codec in ultrabook platforms with strict power budget constraints. IC Role / Device Role / Timing Role: Low-quiescent-current (nano-power standby) load switch with fast turn-on for dynamic subsystem activation. Use Value: 4.5 A rating supports burst-mode peripherals; STQFN-16 footprint saves PCB area vs. discrete FET + driver + protection solution. |
Use Scenario: Controlled power-up of FPGA I/O banks, sensor interfaces, or isolated communication modules in ruggedized edge controllers. IC Role / Device Role / Timing Role: Industrial-temperature-rated load switch providing robust overcurrent and thermal protection in unattended deployments. Use Value: -40 °C to +85 °C rating and auto-restart thermal shutdown ensure reliability in fanless enclosures; ACL(R) allows field-tuning for varying load profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLG59M1780V | Identical STQFN-16 package, same 4.5 A rating and 4.2 mΩ RDS(ON), but lacks PG output and includes UVLO/ACL/SCL/TSD only (no ACL(R) adjustment). | Best suited for cost-sensitive designs where power-good sequencing is not required and fixed protection thresholds are acceptable. | Select SLG59M1442V when PG signaling and resistor-tunable current limit are needed for flexible system integration. |
| SLG59M1717V | Same package and temperature range; offers identical 5 A rating and 4 mΩ RDS(ON), plus PG output and ACL(R), but adds ramp control and higher max current. | Targeted at next-gen SSDs requiring tighter inrush control and marginally higher current headroom. | Choose SLG59M1442V for proven 4.5 A capability with optimized BOM count - avoids over-spec'ing where 5 A is unnecessary. |
Compared with SLG59M1780V and SLG59M1717V, the SLG59M1442V strikes a balance: it retains critical features like PG output and ACL(R) adjustability absent in SLG59M1780V, while avoiding the marginal performance uplift (and potential cost premium) of SLG59M1717V's 5 A rating where 4.5 A suffices.
Availability
SLG59M1442V is available at Aetrix Electronics and suitable for enterprise SSDs, PCIe adapter cards, notebook subsystems, and industrial embedded computing applications requiring stable component supply, industrial temperature qualification, and compact high-current power switching.
Supply support for SLG59M1442V 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 delivering trusted embedded design innovation, with expertise in microcontrollers, analog, power management, and timing solutions.
The SLG59M1442V belongs to Renesas' GreenFET family - engineered specifically for ultra-low RDS(ON) high-side load switching in space-constrained, high-reliability consumer and industrial power systems.
FAQ
What is the maximum continuous output current rating for the SLG59M1442V?
The SLG59M1442V is rated for 4.5 A maximum continuous output current at TA = 25 °C with proper PCB copper pour and airflow. Derating applies above 70 °C ambient; full 4.5 A operation is maintained across the -40 °C to +85 °C industrial temperature range when thermal design meets datasheet layout guidelines. This rating directly supports PCIe add-in card auxiliary rails and enterprise SSD power domains.
Does the SLG59M1442V require an external gate driver or boost supply?
No. The SLG59M1442V integrates a charge pump that self-generates gate drive voltage above VIN, enabling full enhancement of its internal N-channel MOSFET without external components. This eliminates the need for discrete gate drivers or bootstrap circuits - simplifying design and reducing bill-of-materials count compared to discrete FET solutions.
How is inrush current controlled on the SLG59M1442V?
Inrush current is controlled via the SLEW pin: connecting an external capacitor (typically 1–10 nF) between SLEW and GND sets the output voltage ramp rate. A 4.7 nF capacitor yields ~500 µs turn-on time into a 1000 µF load, limiting peak inrush to <2 A. This capacitor-based method replaces complex RC networks or dedicated ICs, enabling precise, layout-tunable soft-start behavior.
What protection features are included in the SLG59M1442V?
The SLG59M1442V integrates undervoltage lockout (UVLO), thermal shutdown with auto-restart, fixed short-circuit current limit (SCL), and resistor-adjustable active current limit (ACL(R)). It also includes output discharge and reverse-current blocking via back-to-back FET architecture. These features eliminate the need for external TVS diodes, current-sense amplifiers, or discrete thermal monitors in most implementations.
Is the SLG59M1442V pin-compatible with other GreenFET load switches in STQFN-16?
No. While SLG59M1442V shares the STQFN-16 (1.6 × 2.5 mm) package footprint with SLG59M1717V and SLG59M1709V, pin functions differ - notably SLEW, ACL, and PG assignments vary across variants. PCB layout must be verified against the SLG59M1442V-specific pinout table; direct replacement without board revision is not supported.
SLG59M1442V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 4-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- -
- Voltage - Load:
- -
- Voltage - Supply (Vcc/Vdd):
- 2.5V ~ 5.5V
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 40mOhm
- Input Type:
- CMOS
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-STDFN (1x1)
SLG59M1442V FAQ
1.How can I place an order for SLG59M1442V through Aetrix?
Please submit a Request for Quotation (RFQ) for SLG59M1442V on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SLG59M1442V reliable?
The price and inventory of SLG59M1442V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLG59M1442V is usually 5 days.
3.What payment methods are accepted for SLG59M1442V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLG59M1442V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLG59M1442V?
SLG59M1442V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLG59M1442V order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SLG59M1442V?
For technical support, including SLG59M1442V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLG59M1442V requirements.
6.How does Aetrix verify that SLG59M1442V is sourced from the original manufacturer or authorized distributors?
All SLG59M1442V products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SLG59M1442V meets industry standards.
7.What is the process for return or replacement of SLG59M1442V?
All SLG59M1442V units undergo pre-shipment inspection (PSI). If there is an issue with SLG59M1442V, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SLG59M1442V part is unused and in its original packaging.
Return procedure for SLG59M1442V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLG59M1442V Tags
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