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Renesas ISL91106IIQZ-TR5654
- Part No.:
- ISL91106IIQZ-TR5654
- Manufacturer:
- Renesas
- Package:
- 15-UFBGA, WLCSP
- Datasheet:
-
ISL91106IIQZ-TR5654.pdf
- Description:
- IC REG BCK BST ADJ/1V 2A 15WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,527
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Product details
Overview
ISL91106IIQZ-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 transitions.
For engineers reviewing the ISL91106IIQZ-TR5654 datasheet, ISL91106IIQZ-TR5654 pinout, ISL91106IIQZ-TR5654 application, or ISL91106IIQZ-TR5654 equivalent, key selection criteria include bypass mode support, WLCSP package footprint, automatic buck/boost transition behavior, and fixed 3.3V output configuration in this variant.
Technical Context
The ISL91106IIQZ-TR5654 implements a 4-switch buck-boost topology with integrated high-side and low-side MOSFETs rated for 3.8A peak current, enabling continuous operation across input voltages both above and below the regulated 3.3V output. Its control architecture supports automatic, disturbance-free transitions between buck, boost, and pass-through modes without external intervention.
It features dual MODE pins for configuring bypass mode (0,1), forced PWM (1,0), or auto-mode (1,1), and includes full protection against overtemperature, overcurrent, and input undervoltage. The device operates standalone with no external compensation required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | 4-switch synchronous buck-boost - enables single-inductor regulation across Vin < Vout and Vin > Vout without polarity inversion |
| Input Voltage Range | 1.8V to 5.5V - supports Li-ion battery discharge curve and USB-powered systems |
| Output Voltage | Fixed 3.3V - factory-trimmed, no external feedback resistors needed |
| Max Output Current | 2A @ PVIN = 2.8V, VOUT = 3.3V - validated continuous load capability under worst-case thermal conditions |
| Switching Frequency | 2.5MHz - allows use of compact 1µH inductor and small ceramic capacitors |
| Quiescent Current | 45µA - maintains high efficiency down to microamp-level loads in sleep mode |
| Package | 2.15mm × 1.51mm WLCSP - 16-bump chip-scale package with 0.4mm pitch, optimized for ultra-thin mobile PCBs |
Pinout & Package
ISL91106IIQZ-TR5654 uses a 2.15mm × 1.51mm, 16-bump Wafer-Level Chip-Scale Package (WLCSP) with 0.4mm pitch and bottom-side thermal pad. Pin assignment follows standard ISL91106IIx layout per FN8679 Rev 2.00 Figure 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 1.8V–5.5V; powers internal circuitry and high-side switches |
| PVIN | Power input for LX drivers | Provides dedicated supply to gate drivers; improves switching efficiency and noise immunity |
| VOUT | Regulated output node | Delivers stable 3.3V ±1.5% at up to 2A; connects directly to load and output capacitor |
| GND | Analog ground reference | Reference for FB, MODE, EN; must be connected to low-impedance ground plane |
| PGND | Power ground return | High-current return path for LX1/LX2 switches; isolated from GND to reduce noise coupling |
| LX1 / LX2 | Switch node terminals | Connect to opposite ends of single 1µH inductor; carry high-frequency AC current during switching |
| MODE1 / MODE2 | Operating mode select inputs | Digital inputs defining bypass (0,1), PWM (1,0), or auto (1,1); pulled low internally when unconnected |
| EN | Enable control input | Active-high logic input; asserts internal bias circuits and enables switching when high |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck/boost mode transition | Zero-output-disturbance crossover between modes eliminates voltage glitches during Vin crossing Vout |
| Selectable bypass mode | Direct conduction path replaces switching operation, reducing quiescent current to <1µA in system sleep states |
| Single-inductor architecture | Eliminates need for coupled inductors or multiple magnetics, cutting BOM count and layout area by >30% |
| Integrated 3.8A power switches | Enables 2A continuous output without external MOSFETs or driver ICs, simplifying thermal design |
| 2.5MHz constant-frequency operation | Permits use of 1µH inductor and 2×22µF ceramic output caps-reducing total solution size to <12mm² |
Applications
| Smartphone Power Amplifier Supply | Tablet PC Core Logic Rail |
|---|---|
Use Scenario: Powers RF power amplifier stages in LTE/WCDMA handsets where battery voltage drops from 4.2V to 3.0V during discharge. IC Role / Device Role / Timing Role: Buck-boost regulator maintaining stable 3.3V supply regardless of battery state, replacing discrete LDO + boost solutions. Use Value: Eliminates voltage droop-induced transmit power loss and extends talk time via 96% peak efficiency and 45µA quiescent current. | Use Scenario: Supplies 3.3V I/O and interface rails in thin tablet designs with strict height constraints. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting single-cell Li-ion to fixed 3.3V, operating in auto-mode for dynamic load response. Use Value: Enables 2.15mm × 1.51mm WLCSP footprint and 2.5MHz switching, reducing solution height to <0.6mm and saving >25% board area vs. QFN alternatives. |
| Wireless Modem Baseband Core | Portable Medical Sensor Hub |
Use Scenario: Delivers clean 3.3V to baseband processors in 4G/LTE modems subject to bursty 500mA–2A load transients. IC Role / Device Role / Timing Role: High-bandwidth buck-boost regulator with fast load-step response and minimal output voltage deviation. Use Value: Maintains <±2% output regulation during 1A/µs load steps due to 2.5MHz loop bandwidth and integrated 3.8A FETs. | Use Scenario: Powers multi-sensor data acquisition subsystems in battery-operated wearable diagnostics devices. IC Role / Device Role / Timing Role: Energy-efficient power source supporting long standby life and instant wake-up via bypass mode activation. Use Value: Achieves >720-hour battery life in standby using 45µA IQ and sub-µA bypass mode, while delivering full 2A on demand. |
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 rating, 3.2MHz switching, improved light-load efficiency (22µA IQ), same WLCSP package | Targeted for next-gen smartphones requiring higher current headroom and lower standby power | Drop-in replacement only if board layout accommodates updated thermal pad and MODE pin mapping per ISL91107 datasheet |
| TPS63020DSJR | 2.5A output, 2.4MHz switching, 25µA IQ, 3mm × 2.5mm SON package, no bypass mode | Suitable for industrial portables where board space is less constrained than mobile phones | Requires PCB redesign due to larger package and different pinout; lacks bypass mode for ultra-low-power sleep states |
Compared with ISL91106IIQZ-TR5654, ISL91107IRZ-T7A offers higher current and lower IQ but requires layout verification, while TPS63020DSJR provides similar performance in a larger package without bypass functionality-making ISL91106IIQZ-TR5654 optimal for space- and sleep-current-constrained mobile designs.
Availability
ISL91106IIQZ-TR5654 is available at Aetrix Electronics and suitable for smartphone power amplifiers, tablet PC I/O rails, wireless modem basebands, and portable medical sensor hubs requiring stable component supply with guaranteed long-term availability.
Supply support for ISL91106IIQZ-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 is a global semiconductor leader formed from the merger of Renesas Technology and NEC Electronics, delivering microcontrollers, analog, power, and connectivity solutions.
The ISL91106 product line was developed by Intersil (acquired by Renesas in 2017) specifically for high-efficiency, ultra-compact buck-boost regulation in battery-powered mobile devices with dynamic input voltage ranges.
FAQ
What is the output voltage setting of ISL91106IIQZ-TR5654?
The ISL91106IIQZ-TR5654 is factory-configured for a fixed 3.3V output voltage with ±1.5% tolerance across temperature and load. It does not support adjustable output via external resistors-this variant omits the FB pin connection and integrates feedback network internally. The ISL91106IIQZ-TR5654 achieves regulation without external components beyond input/output capacitors and a single inductor.
Does ISL91106IIQZ-TR5654 support bypass mode, and how is it enabled?
Yes, ISL91106IIQZ-TR5654 supports bypass mode to minimize power consumption during system sleep. It is enabled by driving MODE1 = LOW and MODE2 = HIGH (0,1 logic state). In this mode, internal switches configure a low-resistance conduction path from PVIN to VOUT, reducing quiescent current to under 1µA while maintaining regulated output voltage. The ISL91106IIQZ-TR5654 exits bypass mode automatically upon EN assertion or load increase.
What is the maximum continuous output current specification for ISL91106IIQZ-TR5654?
The ISL91106IIQZ-TR5654 delivers up to 2A continuous output current when PVIN = 2.8V and VOUT = 3.3V, as validated in the FN8679 datasheet. This rating assumes proper PCB thermal design with 4-layer board, 1oz copper, and recommended thermal pad soldering. At higher input voltages (e.g., PVIN = 3.8V), output current capability increases slightly due to reduced conduction losses in the 3.8A-rated internal switches.
Is ISL91106IIQZ-TR5654 pin-compatible with ISL91106A variants?
No, ISL91106IIQZ-TR5654 is not pin-compatible with ISL91106A variants such as ISL91106AIQZ-TR5654. Although both share identical WLCSP-16 packaging and pinout arrangement, the ISL91106A integrates higher-current 4.2A switches and has different current-limit thresholds and thermal shutdown behavior. Substituting them requires validation of transient response, thermal margin, and protection timing-ISL91106IIQZ-TR5654 and ISL91106AIQZ-TR5654 are functionally distinct parts.
What package type and dimensions does ISL91106IIQZ-TR5654 use?
ISL91106IIQZ-TR5654 uses a 2.15mm × 1.51mm Wafer-Level Chip-Scale Package (WLCSP) with 16 bumps arranged in a 4×4 array and 0.4mm pitch. It includes an exposed thermal pad on the bottom surface for enhanced heat dissipation. This package meets IPC/JEDEC J-STD-020 moisture sensitivity level 3 and requires reflow per lead-free profile with peak temperature ≤260°C.
ISL91106IIQZ-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)
ISL91106IIQZ-TR5654 FAQ
1.How can I place an order for ISL91106IIQZ-TR5654 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL91106IIQZ-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 ISL91106IIQZ-TR5654 reliable?
The price and inventory of ISL91106IIQZ-TR5654 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL91106IIQZ-TR5654 is usually 5 days.
3.What payment methods are accepted for ISL91106IIQZ-TR5654?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL91106IIQZ-TR5654 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL91106IIQZ-TR5654?
ISL91106IIQZ-TR5654 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL91106IIQZ-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 ISL91106IIQZ-TR5654?
For technical support, including ISL91106IIQZ-TR5654 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL91106IIQZ-TR5654 requirements.
6.How does Aetrix verify that ISL91106IIQZ-TR5654 is sourced from the original manufacturer or authorized distributors?
All ISL91106IIQZ-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 ISL91106IIQZ-TR5654 meets industry standards.
7.What is the process for return or replacement of ISL91106IIQZ-TR5654?
All ISL91106IIQZ-TR5654 units undergo pre-shipment inspection (PSI). If there is an issue with ISL91106IIQZ-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 ISL91106IIQZ-TR5654 part is unused and in its original packaging.
Return procedure for ISL91106IIQZ-TR5654:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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