Renesas SLG59H1302C

Overview

SLG59H1302C from Renesas Electronics is a surge-protected, 28 V tolerant power splitter IC in 28-ball WLCSP (2.98 × 1.69 × 0.44 mm), integrating two independent high-current nFET switches (BUS→OUT: 12 mΩ/6 A; BUS→SYS: 24 mΩ/6 A reverse-blocking) and an always-on 0.1 A LDO delivering ~4.0 V on BUSOK. It serves as a dual-path power routing and protection device in portable battery-powered systems with USB-C or travel adapter input.

For engineers reviewing the SLG59H1302C datasheet, SLG59H1302C pinout, SLG59H1302C application, or SLG59H1302C equivalent, key selection considerations include IEC 61000-4-5 ±130 V surge tolerance, 200 ns overvoltage protection response, push-pull PG assertion on SYS turn-on, and thermal shutdown at 145 °C - all validated across –40 °C to +85 °C industrial operation.

Technical Context

The SLG59H1302C implements dual independent load switch control logic: ON1 (active-low) enables the BUS-to-OUT path, while ON2 (active-high) controls the reverse-blocking BUS-to-SYS path. Each switch includes dedicated OVLO comparators (VOUT_OVLO = 13.9 V typ, VSYS_OVLO = 5.25 V typ) with 200 ns response time and internal debounce (15 ms).

Its integrated "always ON" LDO derives from BUS and delivers regulated ~4.0 V at up to 100 mA on BUSOK, independent of ON1/ON2 states. The PG output asserts high when SYS is powered and stable, and the IC features active-high SD for global shutdown, UVLO (2.4 V typ), and thermal shutdown (145 °C) with 20 °C hysteresis.

Key Specifications

Pinout & Package

SLG59H1302C uses a 28-ball WLCSP package (2.98 × 1.69 × 0.44 mm, 0.4 mm pitch) with exposed thermal pads on BUS, SYS, and OUT terminals for efficient heat dissipation in space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-path power splitting applications.

Compared with TPS25947L and RTQ2132B-QA, the SLG59H1302C uniquely integrates surge protection, dual independent switching with reverse blocking, an always-on LDO, and PG signaling in a single WLCSP - making it optimal for consumer portable devices requiring compact, robust, and self-contained power routing.

Availability

SLG59H1302C is available at Aetrix Electronics and suitable for wearable devices, tablet PCs, smartphones, and USB-C accessory designs requiring stable component supply, surge resilience, and space-efficient power routing.

Supply support for SLG59H1302C 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 SLG59H1302C belongs to Renesas' GreenFET family of highly integrated power management ICs, designed specifically for compact, surge-resilient power routing in portable consumer electronics with stringent size and reliability requirements.

FAQ

What is the maximum continuous current rating for the BUS-to-OUT path in the SLG59H1302C?

The SLG59H1302C supports up to 6 A continuous current on the BUS-to-OUT path, with a typical R_DS(on) of 12 mΩ at 25 °C. At 85 °C, R_DS(on) rises to 16–18 mΩ, resulting in ~100 mV conduction drop at 6 A - well within thermal limits when using recommended PCB copper area per datasheet layout guidelines.

Does the SLG59H1302C provide reverse current protection on the BUS-to-SYS path?

Yes, the SLG59H1302C implements true reverse-blocking behavior on the BUS-to-SYS path, with measured reverse leakage current of ≤10 nA when VSYS = 4.4 V. This prevents battery discharge into a failed or disconnected BUS source, a critical safety feature in portable charging architectures.

Can the BUSOK output of the SLG59H1302C be loaded with 100 mA continuously?

Yes, the BUSOK output of the SLG59H1302C is rated for 100 mA continuous current, delivering 3.8–4.4 V (depending on load and BUS voltage). At 100 mA and VBUS = 12 V, output voltage remains ≥3.6 V - sufficient to power supervisory ICs, level shifters, or charging status indicators without external regulation.

How does the SLG59H1302C respond to overvoltage on the OUT rail?

When VOUT exceeds the OVLO threshold (13.9 V typical), the SLG59H1302C disables the BUS-to-OUT switch within 200 ns and pulls PG low if SYS remains valid. The device remains latched off until ON1 is cycled or SD is toggled, preventing damage to downstream PMICs or SoCs during transient overvoltage events.

Is the SLG59H1302C pin-compatible with other members of the SLG59H13xx family?

No - the SLG59H1302C has a unique 28-ball WLCSP pinout optimized for dual-path routing and thermal performance. While functionally related to SLG59H1301C (single-path variant), it is not pin-compatible due to differing terminal counts, placement (e.g., 13 BUS pins vs. fewer), and signal assignments such as dedicated PG and BUSOK outputs.