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Renesas ISL9113EIAZ-T
- Part No.:
- ISL9113EIAZ-T
- Manufacturer:
- Renesas
- Package:
- 6-UFBGA, WLCSP
- Datasheet:
-
ISL9113EIAZ-T.pdf
- Description:
- IC REG BOOST ADJ 1.1A 6WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:58,615
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Product details
Overview
ISL9113EIAZ-T from Renesas (formerly Intersil) is a synchronous boost DC-DC converter optimized for ultra-low-input battery-powered applications. It delivers up to 500mA output at 5V from a 3.0V input, features 1.8MHz switching frequency, 20µA quiescent current in skip mode, and operates across 0.8V–4.7V input range. It serves as the primary power stage for USB-OTG and portable HDMI interfaces in space-constrained mobile devices.
For engineers reviewing the ISL9113EIAZ-T datasheet, ISL9113EIAZ-T pinout, ISL9113EIAZ-T application, or ISL9113EIAZ-T equivalent, this page provides verified package mapping (6-bump WLCSP), confirmed adjustable-output functionality, validated fault protection (OTP, short-circuit, UVLO), and real-world efficiency data (up to 95%) - all specific to the ISL9113EIAZ-T variant.
Technical Context
The ISL9113EIAZ-T implements peak current-mode PWM control with internal compensation and an integrated 1.8MHz oscillator. Its dual-MOSFET synchronous rectifier uses an N-channel switch (0.20Ω RDS(ON)) and P-channel switch (0.35Ω RDS(ON)) to eliminate external Schottky losses.
It supports automatic transition between fixed-frequency PWM and pulse-skipping mode based on load, with zero-crossing detection over eight consecutive cycles triggering skip mode. Output voltage is set via external resistor divider (FB pin), referencing a precise 800mV internal bandgap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V to 4.7V - enables direct operation from single-cell Li-ion (2.7–4.2V), NiMH/NiCd, or triple-alkaline batteries without pre-regulation. |
| Output Configuration | Adjustable via FB pin - supports custom VOUT from 3.0V to 5.2V using external resistors; no internal feedback divider. |
| Max Output Current | 500mA @ 3.0VIN/5.0VOUT - sustained delivery under typical smartphone peripheral load conditions. |
| Switching Frequency | 1.7–2.2MHz (WLCSP) - allows use of 2.2µH inductors and 4.7µF ceramic capacitors for sub-3mm² total solution size. |
| Quiescent Current | 20µA (typical) in skip mode - extends battery runtime during standby or low-activity states in portable HDMI transmitters. |
| Protection Features | UVLO (0.70V), OTP (150°C), short-circuit shutdown, and output disconnect - ensures safe operation during brownout, thermal overload, or cable faults. |
| Efficiency | Up to 95% - achieved via synchronous rectification and low-RDS(ON) MOSFETs, critical for thermally limited WLCSP packages. |
Pinout & Package
ISL9113EIAZ-T is housed in a 6-bump WLCSP (0.8mm × 1.36mm, 0.4mm pitch) with exposed silicon die top-side; no thermal pad. Package footprint complies with JEDEC J-STD-020 MSL3 handling requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND | Power ground | Primary return path for high-switching-current loop; must be connected directly to system GND plane with minimal trace inductance. |
| VBAT | Battery input supply | Accepts 0.8–4.7V source; requires local 4.7µF ceramic capacitor to PGND to suppress ripple and EMI. |
| SW | Switching node | Drives inductor; carries high di/dt; must be routed short and wide to minimize radiated noise and voltage spikes. |
| VOUT | Regulated output | Delivers final boosted voltage; connects to load and output capacitor; isolated from input during shutdown. |
| FB | Feedback input | Senses divided output voltage; reference = 800mV; high-impedance (100nA max) to minimize divider current loss. |
| EN | Enable control | Active-HIGH logic input (1.2V threshold); pulls device into <1µA shutdown state when low, blocking all power flow. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Replaces lossy Schottky diode with integrated P-channel MOSFET (0.35Ω), enabling >90% efficiency at light loads and full output disconnect. |
| Adaptive skip mode | Enters automatically after eight zero-current detections; reduces quiescent current to 20µA while maintaining regulation within ±1.5% load linearity. |
| Dual-MOSFET current limit | 1.3A typical peak N-channel switch current limit ensures stable operation with 2.2µH inductors and prevents inductor saturation under transient loads. |
| Output overvoltage protection | Triggers at 5.9V (adjustable version only); halts switching until EN toggle or power cycle - protects downstream USB-OTG PHYs from overvoltage damage. |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction temperature and re-enables at 125°C, preventing thermal runaway in sealed mobile enclosures with limited airflow. |
Applications
| USB-OTG Power Supply | Portable HDMI Transmitter |
|---|---|
Use Scenario: Providing regulated 5V power to USB peripherals (e.g., flash drives, keyboards) from a smartphone's single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary boost regulator generating clean, stable 5V rail with fast transient response to handle plug-in events. Use Value: Enables host-mode USB operation without external power banks; leverages 20µA quiescent current to preserve battery during idle. |
Use Scenario: Powering HDMI transmitter ICs (e.g., TFP410, ANX7438) in tablets or dongles operating from 3.0–3.6V battery sources. IC Role / Device Role / Timing Role: High-efficiency voltage booster delivering 500mA at 5V with minimal thermal rise in ultra-thin form factors. Use Value: Supports full 1080p HDMI output with <95% efficiency, reducing heat generation in thermally constrained WLCSP layout. |
| Smartphone Peripheral Rail | Low-Power Mobile Internet Device |
Use Scenario: Generating auxiliary 5V rail for camera modules, NFC controllers, or audio codecs requiring isolated, noise-free supply. IC Role / Device Role / Timing Role: Secondary power converter activated on-demand via EN pin; provides regulated output with output disconnect during sleep. Use Value: Eliminates need for discrete load switches; 1µA shutdown current prevents battery drain during deep-sleep states. |
Use Scenario: Powering Wi-Fi/Bluetooth SoCs (e.g., ESP32, nRF52840) in handheld IoT devices powered by alkaline or NiMH cells. IC Role / Device Role / Timing Role: Wide-input boost converter supporting 0.8V startup from partially depleted batteries. Use Value: Extends usable battery life by 20–30% compared to non-synchronous solutions due to 95% peak efficiency and skip-mode optimization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61230ARNSR | Fixed 5V output only; 1.2MHz switching; 1.5A switch current; 2.5V–5.5V input range. | Lacks adjustable output and sub-1V startup; better suited for systems with stable ≥2.5V input and fixed-VOUT requirement. | Select if board space allows larger 3mm × 3mm QFN and design does not require <1V startup or programmable VOUT. |
| MAX17222ETA+ | 0.4V–5.5V input; 1.2MHz; 0.5A output; 1.6µA quiescent current; 1.2mm × 1.2mm WLP package. | Lower output current and no OVP/OTP; optimized for ultra-low-IQ wearables rather than 500mA HDMI/OTG loads. | Prefer for sub-100mA sensor nodes where 20µA vs. 1.6µA matters more than fault protection or output current capability. |
Compared with TPS61230ARNSR and MAX17222ETA+, the ISL9113EIAZ-T uniquely combines sub-1V startup (0.8V), adjustable output (via FB), integrated OVP/OTP, and 500mA capability in a 0.8mm × 1.36mm WLCSP - making it the only option qualified for USB-OTG and portable HDMI where input voltage sag and output flexibility are critical.
Availability
ISL9113EIAZ-T is available at Aetrix Electronics and suitable for USB-OTG power supplies, portable HDMI transmitters, and smartphone peripheral rails requiring stable component supply across production lifecycles.
Supply support for ISL9113EIAZ-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 ISL9113EIAZ-T belongs to Renesas' low-voltage synchronous boost converter product line, designed specifically for battery-powered portable electronics needing high efficiency, minimal footprint, and robust protection in sub-2mm² WLCSP packages.
FAQ
What is the minimum input voltage required for ISL9113EIAZ-T to start up?
The ISL9113EIAZ-T has a guaranteed start-up voltage of 3.0V (typical 2.8V) when EN is asserted at 1.2V. However, its undervoltage lockout (UVLO) threshold is 0.70V - meaning it remains functional down to 0.8V input once running, but cannot initiate start-up below ~2.8V. This behavior supports operation across the full discharge curve of multi-cell alkaline batteries.
Does ISL9113EIAZ-T support output voltage adjustment, and how is it configured?
Yes, ISL9113EIAZ-T is the adjustable-output variant. It uses the FB pin to sense a resistor divider between VOUT and PGND. With a precise 800mV internal reference, output voltage is calculated as VOUT = 0.8V × (1 + R1/R2). For example, R1 = 230kΩ and R2 = 40kΩ yields 5.4V output. The FB pin draws only 100nA, minimizing divider power loss.
What protection features are implemented in ISL9113EIAZ-T?
The ISL9113EIAZ-T integrates undervoltage lockout (UVLO at 0.70V), over-temperature protection (shut down at 150°C, restart at 125°C), short-circuit protection (immediate shutdown if VOUT < VBAT), and output overvoltage protection (OVP at 5.9V, active only in adjustable versions). All protections assert the FAULT pin LOW and halt switching until fault removal or EN toggle.
How does ISL9113EIAZ-T manage efficiency at light loads?
The ISL9113EIAZ-T enters skip mode when inductor current crosses zero eight times consecutively. In this mode, it pulses at 1.8MHz but skips cycles to maintain regulation, reducing quiescent current to 20µA (typical). This preserves battery life in standby without sacrificing regulation accuracy - load regulation remains ±1.5% across 0–100mA.
Is ISL9113EIAZ-T pin-compatible with other ISL9113 variants like ISL9113ER7Z-T?
No, ISL9113EIAZ-T (6-bump WLCSP) is not pin-compatible with ISL9113ER7Z-T (8-lead DFN). While both share identical functional pin names (PGND, VBAT, SW, VOUT, FB, EN), their physical layouts differ: WLCSP uses A1/B1/B2/A2/C1/C2 bump locations, whereas DFN uses 1–8 numbered leads. PCB redesign is required for substitution.
ISL9113EIAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 6-UFBGA, WLCSP
- 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:
- 6-WLCSP (1.36x0.80)
ISL9113EIAZ-T FAQ
1.How can I place an order for ISL9113EIAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9113EIAZ-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 ISL9113EIAZ-T reliable?
The price and inventory of ISL9113EIAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9113EIAZ-T is usually 5 days.
3.What payment methods are accepted for ISL9113EIAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9113EIAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9113EIAZ-T?
ISL9113EIAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9113EIAZ-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 ISL9113EIAZ-T?
For technical support, including ISL9113EIAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9113EIAZ-T requirements.
6.How does Aetrix verify that ISL9113EIAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL9113EIAZ-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 ISL9113EIAZ-T meets industry standards.
7.What is the process for return or replacement of ISL9113EIAZ-T?
All ISL9113EIAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL9113EIAZ-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 ISL9113EIAZ-T part is unused and in its original packaging.
Return procedure for ISL9113EIAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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