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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

Renesas SLG59M1571V

Name: SLG59M1571V
Brand: Renesas
SKU: SLG59M1571V
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SLG59M1571V

Manufacturer:: Renesas

Category:: Power Distribution Switches, Load Drivers

Package:: 4-UFDFN

Datasheet:: SLG59M1571V.pdf

Description:: A 1 MM, LOW-VOLTAGE, 0.85 VD, R

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SLG59M1571V from Renesas Electronics is a single-channel ultra-low-R_DS(ON) load switch IC with reverse blocking, integrated discharge resistor, and internal charge pump. It features 14.6 mΩ R_DS(ON) at 25°C, 1.0 A continuous current rating, 0.85–1.9 V input voltage range, and thermal shutdown at 120°C. It is used in space-constrained power rail sequencing for portable and wearable electronics.

For engineers reviewing the SLG59M1571V datasheet, SLG59M1571V pinout, SLG59M1571V application, or SLG59M1571V equivalent, key selection criteria include low-voltage operation (down to 0.85 V), reverse leakage < 4 µA, fast total turn-on time (≤500 µs), and STDFN 4L 1.0 × 1.0 mm package compatibility with high-density PCB layouts.

Technical Context

The SLG59M1571V integrates a single N-channel MOSFET with an internal charge pump enabling gate drive above VIN - critical for low-VIN operation where external gate bias is unavailable. Its reverse blocking function prevents backflow when VIN = 0 V and VOUT > 0 V, with measured reverse leakage ≤4 µA across temperature.

Thermal protection activates at 120°C (THERMON) and releases at 100°C (THERMOFF), with 1 ms response time. The integrated 50–120 Ω discharge resistor ensures controlled VOUT ramp-down during OFF transitions, eliminating external components for safe rail collapse.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(ON)	14.6 mΩ typ. at 25°C - enables <15 mV drop at 1 A, minimizing power loss in battery-powered systems
VIN Range	0.85–1.9 V - supports direct connection to single-cell Li-ion/Li-poly and LDO outputs
I_CONT	1.0 A continuous - rated for sustained load switching without derating below 85°C ambient
Reverse Leakage	≤4 µA at VOUT = 1.9 V, VIN = 0 V - ensures robust isolation in shared-rail architectures
Turn-On Time	310–500 µs total - provides controlled power-up slew rate (4.7 V/ms) to limit inrush current
Discharge R	54–80 Ω over -40°C to 85°C - guarantees predictable VOUT discharge timing without external RC
Thermal Shutdown	120°C trip / 100°C release - protects against sustained overload or poor PCB thermal design

Pinout & Package

SLG59M1571V is housed in a Pb-free, halogen-free STDFN 4L package measuring 1.0 × 1.0 × 0.55 mm with wettable flanks, optimized for automated optical inspection (AOI) and high-density routing.

Pin/Terminal	Circuit Role	Design Meaning
1 - ON	Digital enable input	CMOS-compatible control pin; turns on MOSFET when ≥0.85 V; input impedance ≥100 MΩ reduces system GPIO loading
2 - VIN	Power input terminal	Source connection of internal N-MOSFET; accepts 0.85–1.9 V supply with ≤2.5 V absolute max rating
3 - VOUT	Power output terminal	Drain connection of internal N-MOSFET; reverse blocking isolates downstream loads when VIN = 0 V
4 - GND	Reference ground	System ground return path for charge pump, logic, and MOSFET body; must be low-impedance for stable operation

Key Features

Feature	Design Value
Ultra-low R_DS(ON)	14.6 mΩ at 25°C - reduces conduction loss to <15 mW at 1 A, extending battery life in always-on subsystems
Integrated discharge resistor	54–80 Ω over full temperature range - eliminates need for external pull-down, saving board area and BOM cost
Reverse blocking	Leakage ≤4 µA at 1.9 V reverse bias - prevents back-powering of upstream rails in multi-supply systems
Internal charge pump	Enables full MOSFET enhancement down to 0.85 V VIN - removes dependency on external gate driver or higher-bias supply
Thermal protection	Hysteresis-based shutdown (120°C on / 100°C off) with 1 ms response - prevents latch-up during transient overloads

Applications

Wearable Sensor Node Power Management	USB-C Peripheral Rail Sequencing
Use Scenario: Powering low-current MEMS sensors and BLE radios in compact wearables with tight thermal and size constraints. IC Role / Device Role / Timing Role: Load switch controlling VDD_IO rail; enables/disables sensor subsystem under MCU command with controlled slew rate. Use Value: 14.6 mΩ R_DS(ON) minimizes voltage drop across battery voltage range; integrated discharge ensures clean reset between measurement cycles.	Use Scenario: Isolating auxiliary 1.8 V or 1.2 V rails in USB-C accessories (e.g., dongles, adapters) during hot-plug events. IC Role / Device Role / Timing Role: Reverse-blocking load switch placed between USB-C PD controller and downstream logic rails. Use Value: Reverse leakage <4 µA prevents backfeed into PD controller when VBUS drops; 0.85 V min VIN supports low-dropout LDO-fed rails.
Smartwatch Display Backlight Control	Industrial IoT Edge Node Subsystem Enable
Use Scenario: Enabling LED driver ICs or display power supplies only during active screen use to conserve battery. IC Role / Device Role / Timing Role: High-side load switch placed before buck-boost converter powering white LED strings. Use Value: Fast 500 µs max turn-on time synchronizes with display controller wake signals; thermal shutdown protects against LED short-circuit faults.	Use Scenario: Power gating wireless transceivers (LoRa, NB-IoT) in battery-operated edge nodes during sleep mode. IC Role / Device Role / Timing Role: Low-quiescent-load switch isolating RF section from main SoC domain. Use Value: 0.4 µA typical OFF-state current extends years-long battery life; STDFN 1.0×1.0 mm footprint fits constrained module layouts.

Wearable Sensor Node Power Management

USB-C Peripheral Rail Sequencing

Use Scenario: Powering low-current MEMS sensors and BLE radios in compact wearables with tight thermal and size constraints.

IC Role / Device Role / Timing Role: Load switch controlling VDD_IO rail; enables/disables sensor subsystem under MCU command with controlled slew rate.

Use Value: 14.6 mΩ R_DS(ON) minimizes voltage drop across battery voltage range; integrated discharge ensures clean reset between measurement cycles.

Use Scenario: Isolating auxiliary 1.8 V or 1.2 V rails in USB-C accessories (e.g., dongles, adapters) during hot-plug events.

IC Role / Device Role / Timing Role: Reverse-blocking load switch placed between USB-C PD controller and downstream logic rails.

Use Value: Reverse leakage <4 µA prevents backfeed into PD controller when VBUS drops; 0.85 V min VIN supports low-dropout LDO-fed rails.

Smartwatch Display Backlight Control

Industrial IoT Edge Node Subsystem Enable

Use Scenario: Enabling LED driver ICs or display power supplies only during active screen use to conserve battery.

IC Role / Device Role / Timing Role: High-side load switch placed before buck-boost converter powering white LED strings.

Use Value: Fast 500 µs max turn-on time synchronizes with display controller wake signals; thermal shutdown protects against LED short-circuit faults.

Use Scenario: Power gating wireless transceivers (LoRa, NB-IoT) in battery-operated edge nodes during sleep mode.

IC Role / Device Role / Timing Role: Low-quiescent-load switch isolating RF section from main SoC domain.

Use Value: 0.4 µA typical OFF-state current extends years-long battery life; STDFN 1.0×1.0 mm footprint fits constrained module layouts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPS22916BLYFPR	R_DS(ON) = 22 mΩ @ 1.8 V; no reverse blocking; 0.8–5.5 V VIN range	Lacks reverse isolation - unsuitable where VOUT may exceed VIN during standby	Select when wider VIN range and higher current (2 A) are needed, and reverse blocking is not required
ROHM BD750L5FP-E2	R_DS(ON) = 120 mΩ @ 1.8 V; includes soft-start but no discharge resistor	Higher conduction loss limits use to sub-200 mA loads; requires external discharge path	Select for cost-sensitive, low-current applications where board space allows external RC network

Compared with TPS22916BLYFPR and BD750L5FP-E2, the SLG59M1571V uniquely combines ultra-low R_DS(ON), reverse blocking, and integrated discharge in a 1.0 mm² footprint - making it optimal for space- and efficiency-critical 1 A load switching where bidirectional isolation and clean rail collapse are mandatory.

Availability

SLG59M1571V is available at Aetrix Electronics and suitable for wearable electronics, USB-C accessory power management, and industrial IoT edge node subsystem enable requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SLG59M1571V 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 solutions for automotive, industrial, infrastructure, and IoT applications.

The SLG59M1571V belongs to Renesas' GreenFET family of ultra-small, low-R_DS(ON) load switches designed specifically for power rail control in space-constrained portable and battery-powered systems.

FAQ

What is the minimum input voltage required for reliable operation of the SLG59M1571V?

The SLG59M1571V operates reliably down to 0.85 V VIN, enabled by its integrated charge pump that boosts gate voltage above threshold even at ultra-low input levels. This makes the SLG59M1571V suitable for direct connection to deeply discharged single-cell batteries or low-dropout regulator outputs where traditional load switches fail to turn on fully.

Does the SLG59M1571V provide reverse current protection, and how is it implemented?

Yes, the SLG59M1571V provides reverse blocking with leakage ≤4 µA when VIN = 0 V and VOUT = 1.9 V. It achieves this via internal MOSFET topology and body diode orientation, eliminating the need for external reverse-protection diodes. This feature is confirmed in the Electrical Characteristics table and Pin Description section of the SLG59M1571V datasheet.

What is the purpose of the integrated discharge resistor in the SLG59M1571V?

The SLG59M1571V's integrated 54–80 Ω discharge resistor actively pulls VOUT to GND when the device is disabled, ensuring rapid and controlled rail collapse. This prevents floating voltages, avoids unintended wake-up of downstream circuitry, and replaces discrete RC networks - directly reducing bill-of-materials count and PCB area in compact designs using the SLG59M1571V.

Can the SLG59M1571V be used in automotive applications?

The SLG59M1571V is specified for industrial temperature range (−40°C to +85°C) and is RoHS-compliant, but it is not AEC-Q200 qualified or rated for automotive-grade reliability. For automotive applications, Renesas offers AEC-Q200 qualified variants in the same GreenFET family; the SLG59M1571V itself is intended for consumer, wearable, and industrial IoT use cases.

What package type and dimensions does the SLG59M1571V use?

The SLG59M1571V uses a 4-lead STDFN package measuring 1.0 mm × 1.0 mm × 0.55 mm with wettable flanks. Its top marking includes a two-line alphanumeric serial number, and it complies with IPC/JEDEC J-STD-020 reflow profiles for packages with ~0.55 mm³ volume - confirmed in the Package Drawing and Tape and Reel Specifications sections of the SLG59M1571V datasheet.

SLG59M1571V 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):: 0.85V ~ 1.9V

Current - Output (Max):: 1.5A

Rds On (Typ):: 14.6mOhm

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)

SLG59M1571V FAQ

1.How can I place an order for SLG59M1571V through Aetrix?

Please submit a Request for Quotation (RFQ) for SLG59M1571V 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 SLG59M1571V reliable?

The price and inventory of SLG59M1571V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLG59M1571V is usually 5 days.

3.What payment methods are accepted for SLG59M1571V?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLG59M1571V transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLG59M1571V?

SLG59M1571V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLG59M1571V 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 SLG59M1571V?

For technical support, including SLG59M1571V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLG59M1571V requirements.

6.How does Aetrix verify that SLG59M1571V is sourced from the original manufacturer or authorized distributors?

All SLG59M1571V 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 SLG59M1571V meets industry standards.

7.What is the process for return or replacement of SLG59M1571V?

All SLG59M1571V units undergo pre-shipment inspection (PSI). If there is an issue with SLG59M1571V, 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 SLG59M1571V part is unused and in its original packaging.

Return procedure for SLG59M1571V:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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