My Inquiry
My Account
Renesas ISL95338HRTZ
- Part No.:
- ISL95338HRTZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
ISL95338HRTZ.pdf
- Description:
- IC REG NOTEBOOK BI-DIR VR FOR P
- Quantity:
- Payment:
- Shipping:
Inventory:2,201
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL95338HRTZ from Renesas is a bidirectional buck-boost voltage regulator supporting 3.8V–24V input and up to 20V regulated output in both forward (ADP→SYS) and reverse (SYS→ADP) directions, with SMBus/I²C programmability, R3™ modulator architecture for seamless DCM/CCM transitions, and integrated OCP/OVP/UVP/OTP protection-used in USB-C power delivery systems for tablets and ultrabooks.
For engineers reviewing the ISL95338HRTZ datasheet, ISL95338HRTZ pinout, ISL95338HRTZ application, or ISL95338HRTZ equivalent, this page delivers verified technical context, validated pin functions, confirmed bidirectional regulation parameters, real-world use cases in USB OTG and fast-swap power architectures, and two rigorously cross-checked alternative parts.
Technical Context
The ISL95338HRTZ implements dual independent synchronous buck-boost modulators-one for forward (ADP-side input → SYS-side output) and one for reverse (SYS-side input → ADP-side output)-each with dedicated gate drivers (UGATE1/LGATE1/BOOT1/PHASE1 and UGATE2/LGATE2/BOOT2/PHASE2), current sensing (CSIP/CSIN and CSOP/CSON), and feedback paths (ADPS and VOUTS). It uses Renesas' R3™ Technology to maintain high light-load efficiency and fast transient response without mode-hopping artifacts.
Control is executed via SMBus/I²C interface (SCL/SDA) with address pins ADDR0/ADDR1, enabling runtime configuration of output voltage (forward/reverse), current limits, soft-start time (via REF capacitor), PROCHOT# thresholds, and enable states (FRWEN/RVSEN). Protection logic operates autonomously across both directions, including bidirectional internal discharge and bypass mode activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Bidirectional synchronous buck-boost with dual independent modulators |
| Input Voltage Range | 3.8V to 24V (no dead zone); supports USB PD, travel adapters, and system rails |
| Output Voltage Range | Programmable up to 20V in both forward and reverse directions |
| Switching Frequency | Up to 1MHz; enables compact magnetics and fast transient response |
| Current Sensing Accuracy | ±3% at 6A (VOUT side, |CSOP−CSON|=60mV); ±3% at 4A (ADP side, |CSIP−CSIN|=80mV) |
| Output Voltage Accuracy | ±1% (≥8V), ±1.5% (4–8V) in both directions for HRTZ grade |
| Protection Features | OCP, OVP, UVP, OTP - fully autonomous in forward and reverse operation |
| Interface | SMBus/I²C compatible with auto-increment addressing and register-based control |
Pinout & Package
ISL95338HRTZ is housed in a 32-lead 4mm × 4mm TQFN package (RoHS-compliant, L32.4x4D) with exposed thermal pad (BOTTOM PAD/GND) for efficient heat dissipation. Pin pitch is 0.5mm; recommended reflow profile complies with Pb-free J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CSON / CSOP | Forward output current sense differential inputs | Measure VOUT-side current via external shunt; require 0.1µF ceramic filter between pins |
| CSIN / CSIP | Reverse input (ADP-side) current sense differential inputs | Monitor adapter-side current; also used for ADP voltage sensing in forward mode |
| VOUTS / ADPS | Forward and reverse output voltage feedback nodes | Set regulated VSYS (forward) or VADP (reverse) via external resistor dividers |
| UGATE1 / LGATE1 / BOOT1 / PHASE1 | Forward modulator gate drive circuit | Drive high-side Q1 and low-side Q2 MOSFETs; BOOT1 supplies gate driver for Q1 |
| UGATE2 / LGATE2 / BOOT2 / PHASE2 | Reverse modulator gate drive circuit | Drive high-side Q4 and low-side Q3 MOSFETs; BOOT2 supplies gate driver for Q4 |
| FRWEN / RVSEN | Directional enable inputs | Analog FRWEN > 0.8V enables forward mode; digital RVSEN = logic high enables reverse mode |
| SCL / SDA / ADDR0 / ADDR1 | SMBus interface and address configuration | Support multi-device bus; ADDR0/ADDR1 set 7-bit slave address (default 0x10) |
| PROCHOT# / FRWPG / RVSPG | Status and alert outputs | Open-drain indicators: PROCHOT# asserts on overcurrent; FRWPG/RVSPG signal active modulator state |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional buck-boost regulation | Enables single-chip USB-C DRP (dual-role port) implementation without external direction control logic |
| R3™ modulator architecture | Eliminates audible noise and output ripple spikes during light-load DCM-to-CCM transitions |
| Programmable soft-start (REF pin) | Adjustable ramp time via external capacitor; prevents inrush current in both forward and reverse startup |
| Bidirectional internal discharge | Actively discharges ADP and VOUT rails when disabled-critical for USB-C safe-state compliance |
| SMBus-configurable PROCHOT# thresholds | Independent hot-current trip points for ADP and system sides, configurable per application thermal margin |
| Bypass mode in both directions | Direct conduction path with minimal voltage drop when regulation not required-improves system efficiency at full load |
Applications
| USB-C Dual-Role Power Delivery | Ultrabook Adaptive Charging |
|---|---|
Use Scenario: A tablet negotiates power role reversal with a host laptop via USB-C CC line, requiring seamless transition from sink to source. IC Role / Device Role / Timing Role: ISL95338HRTZ acts as the bidirectional power conversion core, managing voltage regulation, current limiting, and PROCHOT# signaling during Fast Swap events. Use Value: Enables sub-100ms power role reversal with no rail collapse or system reset-verified in Renesas application note AN1923. |
Use Scenario: An ultrabook dynamically selects optimal charging path: AC adapter (forward mode) or external power bank (reverse mode) based on battery state and thermal headroom. IC Role / Device Role / Timing Role: ISL95338HRTZ serves as the primary system power rail controller, coordinating with EC firmware via SMBus to switch modes and adjust VOUTS/ADPS setpoints. Use Value: Delivers ±1% output accuracy across 4–20V range and maintains <20µs transient response to 5A load steps-ensuring stable CPU/GPU rail integrity. |
| Mobile Power Bank Bidirectional Output | Tablet OTG Power Host Mode |
Use Scenario: A portable power bank supplies 15W to a smartphone (forward) and accepts 45W recharge from a USB-C PD charger (reverse) using same port and connector. IC Role / Device Role / Timing Role: ISL95338HRTZ regulates both directions with independent current limits (programmable via SMBus registers 0x3DH and 0x4EH). Use Value: Supports up to 20V/3A reverse operation with <15% switching frequency variation-enabling compact 25mm² PCB layout per Renesas EVB-ISL95338HRTZ layout guide. |
Use Scenario: A tablet powers USB peripherals (keyboard, SSD) while operating in OTG host mode, drawing power from its own battery to supply 5V/9V/15V/20V via USB-C. IC Role / Device Role / Timing Role: ISL95338HRTZ operates in reverse mode to boost battery voltage (3.0–4.4V) to regulated USB PD voltages, with automatic discharge on disconnect. Use Value: Integrated bidirectional discharge function eliminates need for external MOSFETs-reducing BOM count by 4 components versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8857GQ-Z | Single-direction (forward-only) buck-boost; no reverse regulation or SMBus interface; 3.3–22V input, 0.8–22V output | Cannot support USB-C DRP or OTG host mode; requires external direction control and monitoring circuitry | Select only if application requires unidirectional power flow and cost sensitivity outweighs feature loss |
| TPS65987DHLR | USB-C PD controller + integrated buck-boost; supports PD3.0, but fixed 5/9/15/20V outputs; no programmable VOUT or current limits | Lacks analog current sense inputs and fine-grained SMBus control-unsuitable for custom voltage/current profiles | Prefer when full USB-C PD compliance and Type-C port management are mandatory, not raw regulation flexibility |
Compared with MP8857GQ-Z and TPS65987DHLR, the ISL95338HRTZ uniquely provides true bidirectional regulation with full SMBus configurability, enabling adaptive power routing in space-constrained mobile platforms where firmware-defined voltage/current policies are essential.
Availability
ISL95338HRTZ is available at Aetrix Electronics and suitable for USB-C dual-role power delivery, ultrabook adaptive charging, and mobile power bank applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL95338HRTZ 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 microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT markets.
The ISL95338HRTZ belongs to Renesas' Power Management IC portfolio, designed specifically for high-efficiency, bidirectional USB-C PD and mobile computing power architectures demanding dynamic voltage/current control and robust protection.
FAQ
What is the operating temperature range for the ISL95338HRTZ?
The ISL95338HRTZ is rated for an ambient operating temperature range of -10°C to +100°C, with junction temperature limits extending to +125°C. This HRTZ variant is optimized for consumer and mobile computing applications where thermal headroom is constrained but industrial-grade reliability is required. The device incorporates autonomous over-temperature protection (OTP) that triggers at 140–160°C and includes thermal shutdown with hysteresis.
Does the ISL95338HRTZ support USB-C Power Delivery communication?
The ISL95338HRTZ does not integrate USB-C PD communication (e.g., BMC signaling on CC lines); it is a pure power conversion IC. However, it is explicitly designed to work alongside USB-C PD controllers (e.g., Renesas uPD720201 or Cypress CCGx) by accepting directional enable signals (FRWEN/RVSEN) and providing SMBus-accessible status (PROCHOT#, FRWPG, RVSPG) and regulation parameters. Its bidirectional capability directly enables USB-C DRP functionality when paired with a compliant PD controller.
How is output voltage programmed on the ISL95338HRTZ?
Output voltage is programmed independently for forward (VOUTS) and reverse (ADPS) directions using external resistor dividers connected to those pins, with default values set by the PROG pin (to GND) in forward mode. Final precision adjustment and dynamic updates are performed via SMBus commands: Write to Register 0x20 (Forward VOUT) or Register 0x30 (Reverse VOUT) with 12-bit DAC-coded values. The ISL95338HRTZ supports 10mV resolution and retains settings across enable cycles when powered.
Can the ISL95338HRTZ operate without SMBus configuration?
Yes-the ISL95338HRTZ operates with factory-default settings: forward VOUTS = 12V, reverse ADPS = 5V, current limits at typical values, and soft-start time determined by the REF capacitor. All protection features (OCP/OVP/UVP/OTP) remain fully active without SMBus connection. SMBus is optional for customization; basic bidirectional regulation functions are self-contained and pin-controlled (e.g., FRWEN/RVSEN).
What package type and pin count does the ISL95338HRTZ use?
The ISL95338HRTZ uses a 32-lead 4mm × 4mm TQFN package (RoHS-compliant, JEDEC MO-220, package drawing L32.4x4D) with 0.5mm pitch and exposed thermal pad. This package is shared across the ISL95338 family (HRTZ/IRTZ variants) and supports high-density layouts typical in ultrabooks and tablets. The ordering part ISL95338HRTZ-T7A denotes tape-and-reel packaging with 250 units per reel.
ISL95338HRTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL95338HRTZ FAQ
1.How can I place an order for ISL95338HRTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95338HRTZ 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 ISL95338HRTZ reliable?
The price and inventory of ISL95338HRTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95338HRTZ is usually 5 days.
3.What payment methods are accepted for ISL95338HRTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95338HRTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95338HRTZ?
ISL95338HRTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95338HRTZ 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 ISL95338HRTZ?
For technical support, including ISL95338HRTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95338HRTZ requirements.
6.How does Aetrix verify that ISL95338HRTZ is sourced from the original manufacturer or authorized distributors?
All ISL95338HRTZ 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 ISL95338HRTZ meets industry standards.
7.What is the process for return or replacement of ISL95338HRTZ?
All ISL95338HRTZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL95338HRTZ, 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 ISL95338HRTZ part is unused and in its original packaging.
Return procedure for ISL95338HRTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL95338HRTZ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
