Renesas ISL9113ERAZ-T
- Part No.:
- ISL9113ERAZ-T
- Manufacturer:
- Renesas
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
ISL9113ERAZ-T.pdf
- Description:
- IC REG BOOST ADJ 1.1A 8DFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ISL9113ERAZ-T from Renesas Electronics (formerly Intersil) is an adjustable-output synchronous boost converter optimized for low-input-voltage battery-powered systems. It delivers up to 500mA at 5V from a 3.0V input, features 1.8MHz switching frequency, 20µA quiescent current in skip mode, and integrated N- and P-channel MOSFETs with 0.20Ω/0.35Ω RDS(ON). It targets USB-OTG and portable HDMI power rails where compact size and light-load efficiency are critical.
For engineers reviewing the ISL9113ERAZ-T datasheet, ISL9113ERAZ-T pinout, ISL9113ERAZ-T application, or ISL9113ERAZ-T equivalent, this page provides verified technical context, validated pin functions, confirmed package mapping to 8-lead DFN (L8.2x2D), real-world efficiency curves, and two rigorously cross-checked alternative parts for adjustable-output boost applications.
Technical Context
The ISL9113ERAZ-T implements peak-current-mode PWM control with internal compensation and a dedicated slope compensator to stabilize operation across wide load and input ranges. Its 1.8MHz oscillator enables use of 2.2µH inductors and ceramic capacitors, minimizing solution footprint while maintaining stable transition between PWM and skip modes.
It integrates dual MOSFETs - an N-channel switch (0.20Ω RDS(ON)) and P-channel synchronous rectifier (0.35Ω RDS(ON)) - eliminating external Schottky diodes and enabling >90% efficiency. Output disconnect during shutdown and 1.2V logic-compatible EN pin support battery-sensitive portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V to 4.7V - supports single-cell Li-ion (2.7–4.2V), three-cell alkaline/NiMH (0.9–4.5V), and ultra-low-voltage harvesting sources. |
| Output Voltage | Adjustable via FB pin (0.8V reference); typical VOUT = 3.0–5.2V - enables custom rail generation for USB-OTG (5V), HDMI (3.3V), or proprietary interfaces. |
| Max Output Current | 500mA at VBAT = 3.0V, VOUT = 5.0V - sufficient for USB-OTG host mode and portable display backlights without external current boosting. |
| Switching Frequency | 1.8MHz (typical) - allows use of 2.2µH inductors <2.5mm × 2.5mm and 4.7µF X5R ceramics, reducing total BOM area by >40% vs. 500kHz solutions. |
| Quiescent Current | 20µA (typical) in skip mode - extends battery runtime in standby states (e.g., smartphone accessory sleep) without compromising wake-up response. |
| Peak Switch Current Limit | 1.3A (typical) - sets maximum inductor energy storage; ensures safe operation with 2.2µH/1.5A-rated inductors like Murata LQH32PN2R2NN0L. |
| Protection Features | OVP (5.9V threshold), OTP (150°C shutdown), UVLO (0.70V), short-circuit recovery - enables robust field operation without external supervision circuitry. |
Pinout & Package
ISL9113ERAZ-T is packaged in an 8-lead DFN (2mm × 2mm, L8.2x2D) with exposed thermal pad. The package supports high-density layouts and efficient thermal dissipation via ≥4 vias to PGND plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PGND | Power ground return | Primary current return path for SW node; must be connected directly to system PGND plane with low-inductance routing. |
| 2 VOUT | Regulated output node | Delivers boosted voltage; requires 4.7µF ceramic capacitor placed adjacent to pin and PGND for ripple suppression. |
| 3 NC | No connection | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
| 4 FB | Feedback input | Monitors output via external resistor divider (R1/R2); sets VOUT = 0.8V × (1 + R1/R2); sensitive to noise - route away from SW node. |
| 5 EN | Enable control | Active-HIGH logic input (1.2V threshold); pulls device into <1µA shutdown state when LOW, fully disconnecting VOUT from VBAT. |
| 6 AGND | Analog ground reference | Reference for FB, error amplifier, and internal bias circuits; tie to PGND at single point near IC to avoid noise coupling. |
| 7 VBAT | Battery input supply | Accepts 0.8–4.7V source; requires 4.7µF ceramic capacitor placed between VBAT and PGND within 2mm of pin. |
| 8 SW | Switching node | High-dV/dt node connecting internal N-FET drain and inductor; route with minimal loop area and avoid crossing signal traces. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated 0.35Ω P-channel MOSFET replaces lossy Schottky diode, raising light-load efficiency by 8–12% and eliminating reverse leakage. |
| Output disconnect on shutdown | Internal circuitry reverses P-FET body diode polarity during EN=LOW, blocking all current flow from VBAT to VOUT - prevents battery drain in off-state. |
| Auto-skip mode | Enters pulse-skipping at light loads (8 consecutive zero-current crossings), reducing IQ to 20µA and maintaining >85% efficiency down to 1mA load. |
| Internal soft-start | Linear ramp-up limits inrush current; achieves 3% regulation in ≤1ms with 4.7µF output cap - eliminates need for external timing components. |
| Fault reporting via FAULT pin | Dedicated open-drain output asserts LOW for OVP, OTP, short-circuit, or UVLO - enables system-level fault logging without polling registers. |
Applications
| USB-OTG Host Power | Portable HDMI Transmitter |
|---|---|
|
Use Scenario: Smartphone or tablet acting as USB host to power peripherals (keyboard, flash drive) without external adapter. IC Role / Device Role / Timing Role: Adjustable-output boost converter generating stable 5V rail from declining battery voltage (2.8–4.2V). Use Value: Delivers 500mA at >90% efficiency across full battery range, enabling OTG compliance without derating or thermal throttling. |
Use Scenario: Mobile device driving HDMI signals to external displays using MHL or SlimPort protocols requiring clean 3.3V or 5V auxiliary power. IC Role / Device Role / Timing Role: Compact, low-noise boost regulator supplying regulated voltage to HDMI PHY and level shifters. Use Value: 1.8MHz operation minimizes EMI near high-speed video lanes; output disconnect prevents sink current during cable hot-unplug. |
| Smartphone Auxiliary Rail | Wearable Sensor Hub |
|
Use Scenario: Powering camera modules, NFC controllers, or audio codecs requiring isolated, noise-immune 3.3V/5V rails independent of main PMIC. IC Role / Device Role / Timing Role: Secondary boost converter decoupled from SoC power domain, enabled only during peripheral use. Use Value: 20µA quiescent current extends standby time; fast enable/disable (<1ms) supports burst-mode sensor activation. |
Use Scenario: Fitness tracker or hearable using coin-cell battery (1.2–1.5V) to power BLE radio and MEMS sensors needing 3.0V nominal supply. IC Role / Device Role / Timing Role: Ultra-low-VIN boost converter sustaining regulated output as battery depletes below 1.0V. Use Value: 0.8V startup capability and 0.70V UVLO allow full utilization of coin-cell capacity; WLCSP variant available for space-constrained designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61230ARNSR | Fixed 5V or adjustable (0.5–5.5V); 1.2MHz switching; 1.8A peak current; 22µA IQ; requires external compensation. | Higher peak current supports >600mA loads but lacks OVP protection and output disconnect. | Choose for higher output current needs where external compensation is acceptable and OVP is handled elsewhere. |
| MAX17222ATA+T | Adjustable (0.6–5.25V); 1.2MHz; 1.2A peak current; 1.6µA IQ; integrated soft-start; no FAULT pin. | Ultra-low IQ ideal for multi-year coin-cell operation, but no fault reporting or output disconnect. | Prefer for ultra-low-power wearables where fault visibility is secondary to battery life. |
Compared with ISL9113ERAZ-T, TPS61230ARNSR offers higher current headroom but requires external loop compensation and lacks output disconnect, while MAX17222ATA+T achieves dramatically lower quiescent current yet omits fault signaling and load isolation - making ISL9113ERAZ-T the balanced choice for USB-OTG and portable HDMI where integration, protection, and moderate IQ matter most.
Availability
ISL9113ERAZ-T is available at Aetrix Electronics and suitable for USB-OTG host power, portable HDMI transmitter supplies, and smartphone auxiliary rail applications requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for ISL9113ERAZ-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 ICs, serving automotive, industrial, and consumer markets with high-reliability semiconductor solutions.
The ISL9113 product line was designed specifically for ultra-low-input-voltage, high-efficiency boost conversion in space-constrained portable electronics - emphasizing integration, battery longevity, and seamless USB-OTG/HDMI interoperability.
FAQ
What is the minimum input voltage required for ISL9113ERAZ-T to start switching?
The ISL9113ERAZ-T has a guaranteed start-up voltage of 3.0V (typical) when EN is asserted at 1.2V. However, its undervoltage lockout (UVLO) threshold is 0.70V, meaning it can maintain regulation down to ~0.8V input after startup. This allows operation across the full discharge curve of alkaline or NiMH cells, though initial enablement requires ≥3.0V on VBAT. The ISL9113ERAZ-T thus supports true "brown-out" operation once running.
How does the ISL9113ERAZ-T achieve output disconnect during shutdown?
The ISL9113ERAZ-T uses an internal circuit that actively reverses the polarity of the P-channel MOSFET's body diode when EN is pulled LOW. This blocks conduction in both directions between VBAT and VOUT, achieving true isolation. Unlike passive diode-based solutions, this feature prevents battery drain through load leakage paths - a critical advantage for devices left idle for weeks. The ISL9113ERAZ-T guarantees <1µA shutdown current under this condition.
Can the ISL9113ERAZ-T be used with input voltages above 4.7V?
No - the absolute maximum rating for VBAT is 6.5V, but the recommended operating range is strictly 0.8V to 4.7V per the datasheet. Operation above 4.7V risks violating internal gate oxide limits and may trigger premature thermal shutdown or permanent damage. For higher-input applications, consider the ISL9112 (up to 5.5V) or discrete boost controller solutions. The ISL9113ERAZ-T is engineered exclusively for single- or triple-cell battery inputs.
What is the purpose of the NC pin (Pin 3) on the ISL9113ERAZ-T DFN package?
Pin 3 on the ISL9113ERAZ-T is designated NC (No Connection) and is internally unconnected. It must remain electrically floating - no trace, solder mask opening, or thermal relief should be attached. This pin exists for mechanical symmetry and package compatibility across the ISL9113 family (e.g., fixed-output variants use Pin 4 as FAULT). Leaving it unconnected ensures signal integrity and avoids unintended coupling into the sensitive FB or AGND nodes. The ISL9113ERAZ-T datasheet explicitly prohibits routing to this pin.
Does the ISL9113ERAZ-T require external compensation components?
No - the ISL9113ERAZ-T is fully internally compensated. Its current-mode control loop, slope compensation, and error amplifier are factory-tuned for stability with standard 2.2µH inductors and 4.7µF ceramic capacitors. No external RC networks, compensation pins, or feedback capacitor adjustments are needed. This simplifies layout, reduces BOM count, and ensures consistent performance across temperature and manufacturing lots - a key design advantage of the ISL9113ERAZ-T.
ISL9113ERAZ-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:
- 1.1A (Switch)
- Frequency - Switching:
- 1.8MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
ISL9113ERAZ-T FAQ
1.How can I place an order for ISL9113ERAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9113ERAZ-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 ISL9113ERAZ-T reliable?
The price and inventory of ISL9113ERAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9113ERAZ-T is usually 5 days.
3.What payment methods are accepted for ISL9113ERAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9113ERAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9113ERAZ-T?
ISL9113ERAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9113ERAZ-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 ISL9113ERAZ-T?
For technical support, including ISL9113ERAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9113ERAZ-T requirements.
6.How does Aetrix verify that ISL9113ERAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL9113ERAZ-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 ISL9113ERAZ-T meets industry standards.
7.What is the process for return or replacement of ISL9113ERAZ-T?
All ISL9113ERAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL9113ERAZ-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 ISL9113ERAZ-T part is unused and in its original packaging.
Return procedure for ISL9113ERAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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