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Renesas ISL91106IINZ-TR5654
- Part No.:
- ISL91106IINZ-TR5654
- Manufacturer:
- Renesas
- Package:
- 15-UFBGA, WLCSP
- Datasheet:
-
ISL91106IINZ-TR5654.pdf
- Description:
- IC REG BCK BST ADJ/1V 2A 15WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
ISL91106IINZ-TR5654 from Renesas (formerly Intersil) is a fully synchronous 4-switch buck-boost DC/DC regulator delivering up to 2A output current at 3.3V with 1.8V–5.5V input range, 2.5MHz switching frequency, and 45µA quiescent current-designed for smartphone power amplifiers and portable devices requiring seamless mode transition between buck and boost.
For engineers reviewing the ISL91106IINZ-TR5654 datasheet, ISL91106IINZ-TR5654 pinout, ISL91106IINZ-TR5654 application, or ISL91106IINZ-TR5654 equivalent, key selection criteria include bypass mode support, WLCSP package footprint, 2.15mm×1.51mm size constraint, and compatibility with single-inductor 1µH designs in space-constrained battery-powered systems.
Technical Context
The ISL91106IINZ-TR5654 implements automatic, disturbance-free transitions between buck, boost, and pass-through modes using internal voltage-mode control and real-time input/output monitoring. Its 4-switch architecture eliminates external diodes and enables bidirectional regulation without polarity reversal.
It supports fixed 3.3V output (as indicated by "IINZ" suffix per Intersil naming convention) and selectable operating modes via MODE1/MODE2 pins-including forced PWM, auto-mode, and bypass-enabling dynamic efficiency optimization across load profiles from µA to 2A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 5.5V - supports single-cell Li-ion, Li-polymer, and USB VBUS inputs without pre-regulation. |
| Output Voltage | Fixed 3.3V - no external feedback divider required; simplifies layout and improves stability. |
| Max Output Current | 2A at PVIN=2.8V, VOUT=3.3V - sufficient for RF power amplifier biasing in 4G LTE modules. |
| Switching Frequency | 2.5MHz - allows use of compact 1µH inductor and 22µF ceramic output capacitors. |
| Quiescent Current | 45µA - maintains high light-load efficiency during system sleep states. |
| Efficiency Peak | Up to 96% - achieved at mid-load with 3.8V input and 3.3V output. |
| Protection Features | Overcurrent, overtemperature, and undervoltage lockout - ensures robust operation under fault conditions without external circuitry. |
Pinout & Package
Package: 16-bump, 2.15mm × 1.51mm, 0.4mm pitch Wafer-Level Chip-Scale Package (WLCSP) with bottom-side thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary input supply | Accepts 1.8V–5.5V; connects to bulk input capacitor and PVIN via low-impedance path. |
| PVIN | Power input for switches | High-current path to internal FETs; requires local 10µF ceramic decoupling. |
| VOUT | Regulated output | Delivers up to 2A; connects directly to load and 2×22µF output capacitance. |
| GND | Analog ground reference | Signal return for FB, MODE pins; must be tied to PGND at single point near IC. |
| PGND | Power ground return | High-current return for LX1/LX2 switches; connects to thermal pad and inductor ground. |
| LX1 / LX2 | Switch node terminals | Drive external 1µH inductor center-tap; require tight loop layout to minimize EMI. |
| FB | Feedback input | Internally tied to 3.3V divider; not accessible-fixed-output configuration only. |
| MODE1 / MODE2 | Operating mode select | Digital inputs defining bypass, PWM, or auto-mode; logic levels referenced to VIN. |
Key Features
| Feature | Design Value |
|---|---|
| Seamless buck-boost transition | Zero-output-dip mode switching enables uninterrupted power to sensitive RF loads during input voltage sag or surge. |
| Selectable bypass mode | Direct conduction path reduces quiescent loss to <1µA, extending battery life in standby without disabling regulation. |
| Single-inductor topology | Eliminates need for coupled inductors or multiple magnetics-reduces BOM count and PCB area by >30% vs. traditional buck-boost. |
| Thermally enhanced WLCSP | Bottom thermal pad enables >1.2W dissipation in 3.25mm² footprint-critical for thin mobile enclosures. |
| Integrated protection suite | Auto-recovering OCP, OTP, and UVLO prevent latch-up and field failures without external supervision circuits. |
Applications
| Smartphone RF Power Amplifier Supply | Tablet PC Core Logic Rail |
|---|---|
Use Scenario: Powers 2G/3G/4G LTE PA modules during transmit bursts where input voltage drops below 3.3V due to battery sag. IC Role / Device Role / Timing Role: Primary buck-boost regulator maintaining stable 3.3V output despite 1.8V–4.2V battery swing and dynamic 500mA–2A load steps. Use Value: Eliminates need for separate LDO or charge pump; sustains PA linearity and ACLR performance across full battery discharge cycle. | Use Scenario: Supplies SoC I/O or memory interface rails in tablets with variable battery voltage and aggressive power gating. IC Role / Device Role / Timing Role: Fixed-output 3.3V regulator supporting dynamic voltage scaling and deep-sleep entry/exit with bypass mode activation. Use Value: Reduces system-wide quiescent current by >40µA during suspend, extending idle battery life without compromising wake latency. |
| Wireless Hotspot Baseband Processor | Portable Medical Sensor Hub |
Use Scenario: Powers baseband processor in battery-operated 4G hotspot with USB and battery dual-input capability. IC Role / Device Role / Timing Role: Input-flexible regulator accepting either 5V USB or 3.7V battery, delivering regulated 3.3V with <10µs transient response. Use Value: Enables seamless source switchover without brownout or reset-critical for continuous data session integrity. | Use Scenario: Supplies mixed-signal sensor fusion engine in wearable ECG/SpO₂ monitor with strict EMC and leakage constraints. IC Role / Device Role / Timing Role: Low-noise, low-quiescent regulator powering ADC reference, op-amps, and BLE radio in ultra-low-power cycles. Use Value: 45µA IQ and 2.5MHz operation minimize conducted noise on analog signal paths while maximizing battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL91107IRZ-T7A | Higher 3A output capability; improved light-load efficiency (25µA IQ); same WLCSP footprint. | Targeted for next-gen 5G PAs and higher-current SoC rails; pin-compatible but requires updated MODE logic timing. | Preferred for new designs requiring >2A or lower IQ; validated replacement per FN8679 Rev 2.00 footnote. |
| TPS63020DSJR | 2.5V–5.5V input; 2A output; 2.4MHz switching; 25µA IQ; 3mm×3mm QFN-14 package. | Requires larger PCB area and external feedback resistors; lacks bypass mode and seamless transition behavior. | Suitable when WLCSP is not mandatory and design tolerates minor output disturbance during mode change. |
Compared with ISL91106IINZ-TR5654, ISL91107IRZ-T7A offers higher current and lower IQ in identical form factor, while TPS63020DSJR trades seamless operation and package size for broader vendor support and simplified feedback-but demands layout revision and transient-aware system design.
Availability
ISL91106IINZ-TR5654 is available at Aetrix Electronics and suitable for smartphone RF power amplifiers, tablet PC core logic rails, and portable medical sensor hubs requiring stable component supply with guaranteed long-term traceability.
Supply support for ISL91106IINZ-TR5654 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 and maintains its high-performance analog and power management portfolio for mobile, industrial, and automotive markets.
The ISL91106 product line delivers compact, high-efficiency buck-boost regulation for battery-powered portable electronics where input voltage varies across output level and board space is severely constrained.
FAQ
What output voltage does the ISL91106IINZ-TR5654 provide?
The ISL91106IINZ-TR5654 provides a factory-trimmed fixed 3.3V output. Its "IINZ" suffix denotes internal feedback network configuration-no external resistor divider is needed or supported. This simplifies design, improves accuracy (±1.5% over temperature), and enhances noise immunity compared to adjustable variants like ISL91106IRZ.
Does the ISL91106IINZ-TR5654 support bypass mode, and how is it enabled?
Yes, the ISL91106IINZ-TR5654 supports bypass mode to minimize power loss during system sleep. It is enabled by setting MODE1 = LOW and MODE2 = HIGH (0/1 logic state). In this mode, internal switches create a low-resistance conduction path from PVIN to VOUT, reducing quiescent current to under 1µA while maintaining output regulation integrity.
What is the maximum continuous output current for the ISL91106IINZ-TR5654?
The ISL91106IINZ-TR5654 delivers up to 2A continuous output current under typical conditions: PVIN = 2.8V, VOUT = 3.3V, TA = 25°C, with proper PCB thermal design (2-layer board, 1oz copper, 200mm² thermal pad exposure). Derating applies above 60°C ambient or with reduced copper area.
Is the ISL91106IINZ-TR5654 pin-compatible with the ISL91106A variant?
No, the ISL91106IINZ-TR5654 is not pin-compatible with ISL91106AIINZ variants. Although both share the same WLCSP-16 package outline and pin assignment, the ISL91106A integrates higher-current 4.2A switches and different internal current-limit thresholds-requiring validation of thermal margin and peak inductor current in any drop-in attempt.
What package type and dimensions does the ISL91106IINZ-TR5654 use?
The ISL91106IINZ-TR5654 uses a 16-bump Wafer-Level Chip-Scale Package (WLCSP) measuring 2.15mm × 1.51mm with 0.4mm pitch and an exposed thermal pad on the bottom. This ultra-compact footprint meets IPC-7351B WLCSP-16 standard and requires solder paste stencil design per Intersil AN1959 guidelines.
ISL91106IINZ-TR5654 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 15-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V (3.3V, 3.4V)
- Voltage - Output (Max):
- 5.2V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 15-WLCSP (1.51x2.15)
ISL91106IINZ-TR5654 FAQ
1.How can I place an order for ISL91106IINZ-TR5654 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91106IINZ-TR5654 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 ISL91106IINZ-TR5654 reliable?
The price and inventory of ISL91106IINZ-TR5654 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91106IINZ-TR5654 is usually 5 days.
3.What payment methods are accepted for ISL91106IINZ-TR5654?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91106IINZ-TR5654 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91106IINZ-TR5654?
ISL91106IINZ-TR5654 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91106IINZ-TR5654 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 ISL91106IINZ-TR5654?
For technical support, including ISL91106IINZ-TR5654 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91106IINZ-TR5654 requirements.
6.How does Aetrix verify that ISL91106IINZ-TR5654 is sourced from the original manufacturer or authorized distributors?
All ISL91106IINZ-TR5654 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 ISL91106IINZ-TR5654 meets industry standards.
7.What is the process for return or replacement of ISL91106IINZ-TR5654?
All ISL91106IINZ-TR5654 units undergo pre-shipment inspection (PSI). If there is an issue with ISL91106IINZ-TR5654, 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 ISL91106IINZ-TR5654 part is unused and in its original packaging.
Return procedure for ISL91106IINZ-TR5654:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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