My Inquiry
My Account
Renesas ISL78113AARAZ-T
- Part No.:
- ISL78113AARAZ-T
- Manufacturer:
- Renesas
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
ISL78113AARAZ-T.pdf
- Description:
- IC REG BOOST ADJ 1A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,456
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL78113AARAZ-T from Renesas (formerly Intersil) is an automotive-grade synchronous boost DC-DC converter IC designed to generate a regulated 3.0V–5.2V output from ultra-low input voltages (0.8V–4.7V), delivering up to 500mA at 5V from a 3V input. It integrates N- and P-channel MOSFETs, operates at 2MHz switching frequency, and features output disconnect during shutdown, OVP/OCP/OTP/UVLO protection, and -40°C to +105°C operation in an 8-lead DFN package. It targets USB-OTG and HDMI power rails in automotive infotainment.
For engineers reviewing the ISL78113AARAZ-T datasheet, ISL78113AARAZ-T pinout, ISL78113AARAZ-T application, or ISL78113AARAZ-T equivalent, key selection criteria include its 1.3A peak current limit, 95% typical efficiency at 500mA, 50nA shutdown quiescent current, adjustable feedback reference (800mV), and AEC-Q100 qualified operation for harsh automotive environments.
Technical Context
The ISL78113AARAZ-T employs peak current-mode PWM control with internal slope compensation and a 2MHz oscillator, enabling stable regulation across wide input/output ranges. Its dual-MOSFET synchronous rectification replaces external Schottky diodes, reducing conduction loss and supporting >90% efficiency.
It integrates digital soft-start, VOUT isolation via active body-diode reversal during shutdown, and comprehensive fault monitoring-including 5.9V overvoltage protection, 150°C thermal shutdown with 25°C hysteresis, and automatic restart after short-circuit or undervoltage events-ensuring robust operation in automotive camera and head unit systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V to 4.7V - supports direct connection to single-cell Li-ion, NiMH, or low-voltage battery rails without pre-regulation. |
| Output Current Capability | 500mA at 5V from 3V input - sufficient for USB-OTG host mode and HDMI sink power requirements. |
| Switching Frequency | 2MHz typical - enables use of compact 2.2–6.8µH inductors and eliminates AM-band EMI interference. |
| Peak Switch Current Limit | 1.3A typical - sets maximum inductor energy transfer and defines safe operating area under transient loads. |
| Feedback Reference Voltage | 800mV ±16mV - determines output voltage accuracy when used with external resistor divider (e.g., 422Ω/80.6Ω for 5.0V). |
| Shutdown Quiescent Current | 50nA typical - prevents battery drain during vehicle sleep mode in always-on automotive subsystems. |
| Operating Temperature Range | -40°C to +105°C ambient - meets AEC-Q100 Grade 2 requirements for under-hood and dashboard electronics. |
| Protection Features | OVP (5.9V), OCP, OTP (150°C), UVLO (0.70V) - autonomous fault response without external supervision required. |
Pinout & Package
ISL78113AARAZ-T is housed in a 2mm × 2mm, 8-lead DFN package with exposed thermal pad (L8.2x2D). The package requires soldering the EPAD to PGND for electrical integrity and optimal thermal performance; ≥4 vias to system ground plane are recommended.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PGND) | Power ground | High-current return path for SW node and output capacitor; must be low-inductance connection to EPAD and system GND. |
| 2 (VOUT) | Regulated output | Delivers final boosted voltage; connects directly to load and output capacitor; isolated from input during shutdown. |
| 3 (NC) | No connection | Unbonded pad; must remain unconnected on PCB to avoid parasitic coupling or reliability risk. |
| 4 (FB) | Feedback input | Senses output voltage via resistor divider; 800mV reference sets regulation point; sensitive to noise-must be routed away from SW node. |
| 5 (EN) | Enable control | Active-HIGH logic input; drives device into ultra-low-IQ shutdown (<1µA) when pulled LOW; compatible with microcontroller GPIO. |
| 6 (AGND) | Analog ground | Reference for FB, error amplifier, and internal bias circuits; should be star-connected to PGND near IC to minimize noise coupling. |
| 7 (VBAT) | Input supply | Accepts 0.8–4.7V source; requires local 10µF ceramic capacitor to PGND for high-frequency decoupling and stability. |
| 8 (SW) | Switching node | Drives external inductor; carries high dv/dt and di/dt; must be minimized in loop area and kept away from analog traces like FB. |
Key Features
| Feature | Design Value |
|---|---|
| Output disconnect during shutdown | Prevents reverse current flow and battery depletion by actively reversing P-MOSFET body diode polarity-no external load switch needed. |
| Synchronous rectification | Integrated N- and P-channel MOSFETs replace lossy Schottky diode, reducing conduction loss and enabling >90% efficiency at light-to-full load. |
| 2MHz fixed-frequency PWM | Enables use of sub-3mm footprint inductors and avoids AM radio band (530–1710kHz); eliminates need for bulky EMI filters required by lower-frequency converters. |
| Digital soft-start | Linear ramp-up followed by controlled PWM entry limits inrush current; peak inductor current capped at 1.3A during start-up to protect input source. |
| AEC-Q100 qualified | Validated for automotive use per AEC-Q100-002 (ESD), -003 (MM), -004 (Latch-up), and -011 (CDM); rated for -40°C to +105°C ambient operation. |
| Comprehensive fault protection | Independent detection and autonomous response to overvoltage (5.9V), overcurrent, overtemperature (150°C), and input undervoltage (0.70V)-no external supervision required. |
Applications
| Automotive Infotainment Power | Automotive Camera Module Supply |
|---|---|
Use Scenario: Powering USB-OTG host functionality and HDMI sink circuitry in automotive head units requiring 5V/500mA from a 3.6V battery rail. IC Role / Device Role / Timing Role: Synchronous boost converter providing regulated 5.0V output with fast load transient response and zero reverse leakage during vehicle off-state. Use Value: Eliminates need for discrete boost stage and external load switch; maintains compliance with USB-OTG power delivery specs while reducing BOM count by 4 components. | Use Scenario: Generating stable 5V supply for CMOS image sensors and serializer ICs in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 3.3V or 4.2V battery voltage to 5V with tight line/load regulation (<±0.5%) and low output ripple (<20mVpp). Use Value: Enables clean sensor power under cold-crank conditions (VBAT down to 0.8V); thermal shutdown prevents damage during prolonged exposure to under-hood temperatures. |
| Portable HDMI Interface Power | Low-Voltage Battery Backup Rail |
Use Scenario: Providing 5V power to mobile HDMI transmitters in docking stations or wireless display adapters powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Adjustable-output boost converter configured for 5.2V output to accommodate HDMI sink tolerance and cable drop. Use Value: Supports full HDMI 1.4 compliance with 5V±5% at 500mA; 2MHz operation ensures no interference with HDMI TMDS clock harmonics. | Use Scenario: Maintaining auxiliary 5V rail for real-time clocks, CAN transceivers, or memory retention during engine cranking when main battery dips below 6V. IC Role / Device Role / Timing Role: Ultra-low-input boost regulator sustaining regulated output from as low as 0.8V input, with 50nA shutdown IQ preserving backup battery life. Use Value: Extends functional uptime during deep brown-out events; output disconnect prevents backup cell self-discharge through load leakage paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61236PRTWR | Higher 2.5A peak current limit; 1.5MHz switching; 0.9V minimum input; no integrated OVP | Targets higher-power portable devices (e.g., tablets); lacks automotive qualification and 5.9V OVP clamp | Choose for non-automotive designs needing >500mA or lower input voltage; verify external OVP implementation. |
| MAX17222ATA+T | 0.55V min input; 1.2MHz switching; 1.2A peak current; 350nA shutdown IQ; no thermal shutdown | Optimized for ultra-low-power wearables; not AEC-Q100 qualified; narrower temp range (-40°C to +85°C) | Use where input can dip below 0.8V and automotive qualification is unnecessary; add external thermal monitoring if required. |
Compared with TPS61236PRTWR and MAX17222ATA+T, the ISL78113AARAZ-T uniquely combines AEC-Q100 qualification, integrated 5.9V OVP, output disconnect, and 50nA shutdown IQ-making it the only option qualified for direct integration into automotive infotainment and camera power domains without supplemental protection circuitry.
Availability
ISL78113AARAZ-T is available at Aetrix Electronics and suitable for automotive infotainment systems, camera module power supplies, and portable HDMI interface designs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for ISL78113AARAZ-T 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 (acquired Intersil in 2017) is a global leader in microcontrollers, analog, and power management solutions, serving automotive, industrial, and datacenter markets with high-reliability semiconductor products.
The ISL78113AARAZ-T belongs to Renesas' automotive power management portfolio, engineered specifically for low-voltage, high-efficiency DC-DC conversion in infotainment, ADAS, and body electronics where space, thermal constraints, and functional safety are critical.
FAQ
What is the minimum input voltage supported by the ISL78113AARAZ-T?
The ISL78113AARAZ-T supports a minimum input voltage of 0.8V, verified per datasheet absolute maximum ratings and startup voltage specification (VMIN = 0.75V typical). This enables operation directly from deeply discharged single-cell Li-ion or NiMH batteries, making the ISL78113AARAZ-T suitable for automotive systems that must remain functional during cold-cranking events where battery voltage collapses.
Does the ISL78113AARAZ-T require external compensation components?
No, the ISL78113AARAZ-T is fully internally compensated. Its current-mode control loop, including slope compensation and error amplifier, is factory-tuned for stability with standard 2.2–6.8µH inductors and 10µF ceramic output capacitors. No external compensation network is needed-reducing design complexity and board area versus controllers requiring external Type-II or Type-III compensation.
How does the ISL78113AARAZ-T achieve output disconnect during shutdown?
The ISL78113AARAZ-T achieves true output disconnect by actively reversing the polarity of the P-channel MOSFET's body diode using an internal charge pump circuit during EN = LOW. This blocks reverse current flow from VOUT to VBAT, preventing battery drain and eliminating the need for an external ideal diode or load switch-verified in the "VOUT Isolation" section of the datasheet and confirmed by <50nA shutdown leakage current measurement.
What is the purpose of the NC pin (Pin 3) on the ISL78113AARAZ-T?
Pin 3 of the ISL78113AARAZ-T is a no-connect (NC) terminal-physically present but electrically unconnected to any internal circuitry. Per the datasheet Pin Descriptions table, it must remain unconnected on the PCB layout. Routing or soldering to this pin risks introducing parasitic capacitance or unintended coupling, potentially degrading noise immunity or thermal performance in the 2mm × 2mm DFN package.
Can the ISL78113AARAZ-T be used in forced PWM mode only, or does it support PFM?
The ISL78113AARAZ-T operates exclusively in forced PWM mode-no pulse-frequency modulation (PFM) or diode-emulation discontinuous conduction mode is implemented. At light loads, the low-side FET is forced ON for a minimum 42ns pulse each cycle, ensuring predictable EMI profile and stable regulation but requiring a minimum load (~3.87mA typical) to maintain output voltage within spec; this behavior is documented in the "Forced PWM Operation" section of the datasheet.
ISL78113AARAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.8V
- Voltage - Input (Max):
- 4.7V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 5.2V
- Current - Output:
- 1A (Switch)
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
ISL78113AARAZ-T FAQ
1.How can I place an order for ISL78113AARAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL78113AARAZ-T 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 ISL78113AARAZ-T reliable?
The price and inventory of ISL78113AARAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL78113AARAZ-T is usually 5 days.
3.What payment methods are accepted for ISL78113AARAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL78113AARAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL78113AARAZ-T?
ISL78113AARAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL78113AARAZ-T 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 ISL78113AARAZ-T?
For technical support, including ISL78113AARAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL78113AARAZ-T requirements.
6.How does Aetrix verify that ISL78113AARAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL78113AARAZ-T 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 ISL78113AARAZ-T meets industry standards.
7.What is the process for return or replacement of ISL78113AARAZ-T?
All ISL78113AARAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL78113AARAZ-T, 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 ISL78113AARAZ-T part is unused and in its original packaging.
Return procedure for ISL78113AARAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL78113AARAZ-T 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…
