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Renesas ISL9016IRUBBZ-T
- Part No.:
- ISL9016IRUBBZ-T
- Manufacturer:
- Renesas
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
ISL9016IRUBBZ-T.pdf
- Description:
- IC REG LINEAR 1.5V/1.5V 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,971
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Product details
Overview
ISL9016IRUBBZ-T from Intersil is a dual low-dropout linear regulator IC delivering two independent 150mA LDO outputs with fixed 1.5V/1.5V output voltages, ultra-low quiescent current (49µA single-channel, 80µA dual-channel), 80dB PSRR at 1kHz, and stable operation with 1µF–4.7µF ceramic output capacitors - used in battery-powered portable electronics requiring clean, sequenced power rails.
For engineers reviewing the ISL9016IRUBBZ-T datasheet, ISL9016IRUBBZ-T pinout, ISL9016IRUBBZ-T application, or ISL9016IRUBBZ-T equivalent, key selection criteria include dual independent enable control, reverse current protection, ±0.8% output accuracy over –40°C to +85°C, low-noise 25µVRMS output, and µTDFN-6 package compatibility with space-constrained handheld designs.
Technical Context
The ISL9016IRUBBZ-T integrates two fully independent LDO regulators sharing only VIN and GND, each with dedicated ENx input, soft-start ramp control (30–60 µs/V), and autonomous thermal shutdown (145°C trip, 110°C recovery). Its bandgap reference and error amplifier architecture enables fast load transient response (<100mV deviation under 150mA step) without external compensation.
It employs reverse current protection that limits VOUT-to-VIN leakage to <8µA when VIN = 0V and VOUT = 5.5V, and features undervoltage lockout (UVLO+ = 1.775V typ) to prevent erratic startup. The device operates across 1.8V–6.5V input while maintaining dropout as low as 120mV at 150mA for VO ≥ 2.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.5V / 1.5V (fixed, matched dual rail for symmetric analog/digital core supply) |
| Max Output Current | 150mA per channel (supports dual-core microcontrollers or RF + baseband ICs) |
| Quiescent Current | 49µA (one LDO active) / 80µA (both active) - enables >1-year battery life in always-on sensors |
| PSRR | 80dB @ 1kHz, 45dB @ 1MHz - suppresses switching noise from adjacent DC/DC converters |
| Output Noise | 25µVRMS (10Hz–100kHz) - suitable for noise-sensitive ADCs, PLLs, and RF receivers |
| Dropout Voltage | 120mV @ 150mA (for VO ≥ 2.8V); 200mV @ 150mA (for 2.1V ≤ VO < 2.8V) - extends battery runtime in low-VIN states |
| Accuracy | ±0.8% @ +25°C; ±1.8% over –40°C to +85°C - ensures reliable logic-level margin for 1.5V I/O domains |
| Operating Temp | –40°C to +85°C - qualified for industrial and consumer handheld environments |
Pinout & Package
ISL9016IRUBBZ-T is housed in a Pb-free, RoHS-compliant 1.6mm × 1.6mm × 0.5mm ultra-thin 6-lead µTDFN (UTDFN) package with exposed thermal pad (E-Pad) connected to GND. The package supports high-density PCB layouts and efficient thermal dissipation in thin-profile devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | LDO input supply rail | Accepts 1.8V–6.5V; requires 1µF ceramic decoupling capacitor to GND for stability |
| 2 - GND | Power ground reference | Must connect directly to PCB ground plane; E-Pad also tied to GND for thermal and electrical integrity |
| 3 - EN2 | LDO2 enable input | Active-high logic; 100kΩ pull-up required; controls independent startup/shutdown of second 1.5V rail |
| 4 - EN1 | LDO1 enable input | Active-high logic; 100kΩ pull-up required; enables precise power sequencing for system partitioning |
| 5 - VOUT2 | LDO2 regulated output | Delivers fixed 1.5V @ up to 150mA; stable with 1µF–4.7µF X5R/X7R ceramic capacitor to GND |
| 6 - VOUT1 | LDO1 regulated output | Delivers fixed 1.5V @ up to 150mA; supports independent load transient response and reverse current isolation |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow staggered power-up/down of 1.5V rails - critical for FPGA I/O bank sequencing and processor core/sleep mode management |
| Reverse current protection | Blocks >99.9% backfeed from VOUT to VIN when input is grounded or floating - prevents battery drain and system latch-up in hot-swap scenarios |
| Soft-start ramp rate | 30–60 µs/V limits inrush current during enable - avoids input rail collapse and reduces stress on upstream DC/DC converter |
| Thermal shutdown hysteresis | 145°C trip / 110°C recovery with per-LDO disable - maintains partial system operation during localized overheating (e.g., one rail overloaded) |
| Stability with low-ESR ceramics | Works with 1µF–4.7µF X5R/X7R caps (ESR ≤ 200mΩ) - eliminates need for costly tantalum or polymer capacitors |
| Low-noise regulation | 25µVRMS output noise (10Hz–100kHz) - meets stringent noise floor requirements for 12-bit+ SAR ADCs and low-phase-noise clock buffers |
Applications
| Medical Handheld Devices | Smartphone Baseband Power |
|---|---|
|
Use Scenario: Portable glucose meters and pulse oximeters requiring dual 1.5V rails for analog front-end and digital controller. IC Role / Device Role / Timing Role: Dual LDO provides isolated, low-noise 1.5V supplies - one for precision sensor signal chain, one for low-power MCU. Use Value: 25µVRMS noise and ±0.8% accuracy ensure <0.1% measurement drift; reverse current protection prevents battery discharge when USB is connected but main supply is off. |
Use Scenario: Smartphone baseband subsystem needing tightly regulated 1.5V for memory interface and modem logic. IC Role / Device Role / Timing Role: ISL9016IRUBBZ-T delivers matched 1.5V rails with independent EN control to coordinate DDR I/O voltage ramp with AP power-up sequence. Use Value: 80dB PSRR at 1kHz rejects noise from PMIC switching frequencies; soft-start prevents timing violations during boot. |
| Wearable Fitness Tracker | Industrial Sensor Node |
|
Use Scenario: Compact wearable with BLE SoC and optical heart-rate sensor, both operating at 1.5V. IC Role / Device Role / Timing Role: Dual LDO powers BLE radio and analog sensor separately - enabling dynamic power gating of unused blocks. Use Value: 49µA quiescent current (single LDO active) extends battery life to >7 days; 150mA per channel supports peak BLE transmit bursts. |
Use Scenario: Battery-operated wireless temperature/humidity node deployed in unattended industrial settings. IC Role / Device Role / Timing Role: Provides robust 1.5V bias for precision sigma-delta ADC and ultra-low-power MCU, surviving wide VIN (2.0V–5.5V) from aging Li-SOCl₂ cells. Use Value: UVLO (1.775V) prevents brownout resets; thermal shutdown protects against enclosure overheating; –40°C to +85°C rating ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F1515PDBVR | Fixed 1.5V/1.5V dual LDO; 200mA per channel; 50µA IQ; 65dB PSRR @ 1kHz; 0.8mm × 0.8mm DSBGA-6 package | Smaller footprint but lower PSRR and no reverse current protection; not rated for –40°C start-up | Select when board area is constrained and PSRR >70dB is not required; verify thermal performance in sealed enclosures. |
| MCP1826S-1501502D/DB | Adjustable dual LDO (requires external resistors); 300mA per channel; 120µA IQ; 70dB PSRR @ 1kHz; SOT-23-6 package | Larger SOT-23-6 footprint; adjustable outputs require BOM overhead; higher IQ increases standby drain | Choose when flexible output voltage tuning is needed across product variants; avoid if fixed 1.5V/1.5V and minimal IQ are mandatory. |
Compared with TPL720F1515PDBVR and MCP1826S-1501502D/DB, the ISL9016IRUBBZ-T uniquely combines matched 1.5V outputs, industry-leading 80dB PSRR, reverse current blocking, and sub-50µA single-rail IQ in a 1.6mm² µTDFN - making it optimal for noise-critical, battery-sensitive dual-rail systems where layout area and long-term reliability are prioritized over adjustability or minimal footprint.
Availability
ISL9016IRUBBZ-T is available at Aetrix Electronics and suitable for medical handhelds, smartphone baseband subsystems, and industrial sensor nodes requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for ISL9016IRUBBZ-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
Intersil Corporation (now part of Renesas Electronics) designs high-performance analog semiconductors for portable, industrial, and communications markets, with emphasis on power efficiency and signal integrity.
The ISL9016 product line targets battery-powered portable electronics requiring ultra-low IQ, high PSRR, and dual-rail flexibility - specifically engineered for smartphones, PDAs, medical handhelds, and audio/video players.
FAQ
What is the output voltage configuration of the ISL9016IRUBBZ-T?
The ISL9016IRUBBZ-T is factory-configured with two identical fixed-output LDOs, each delivering 1.5V. This dual 1.5V configuration is confirmed in the Ordering Information table (Page 3) where "R6" marking corresponds to VO1 = 1.5V and VO2 = 1.5V. No external feedback resistors are required, simplifying design and reducing BOM count.
Does the ISL9016IRUBBZ-T support independent enable control for each LDO?
Yes, the ISL9016IRUBBZ-T provides fully independent enable inputs: EN1 controls LDO1 (VOUT1) and EN2 controls LDO2 (VOUT2). As specified in the Pin Descriptions (Page 2), both pins are active-high with defined VIH (≥1.1V) and VIL (≤0.4V) thresholds, and require external 100kΩ pull-up resistors. This allows precise power sequencing in multi-rail systems.
What is the minimum output capacitance required for stability with the ISL9016IRUBBZ-T?
The ISL9016IRUBBZ-T is stable with ceramic output capacitors ranging from 1µF to 4.7µF (X5R or X7R dielectric) and ESR up to 200mΩ, as stated on Page 1 and confirmed in the Electrical Specifications (Page 4). A 1µF capacitor is explicitly recommended for each VOUT pin, placed close to the device with direct GND connection to ensure optimal transient response and phase margin.
How does reverse current protection function in the ISL9016IRUBBZ-T?
The ISL9016IRUBBZ-T actively blocks reverse current flow from VOUT to VIN when VIN is at 0V and VOUT is held at 5.5V, limiting leakage to <8µA (typical) as measured per Note 7 on Page 5. This protection engages automatically when VOUT exceeds VIN, preventing battery discharge and system malfunction in hot-swap or backup-supply scenarios.
What thermal protection behavior does the ISL9016IRUBBZ-T exhibit during overload?
The ISL9016IRUBBZ-T features thermal shutdown with 145°C trip and 110°C recovery hysteresis (Page 4). Critically, it disables *only* the LDO(s) sourcing >50mA during overtemperature events (Page 9), allowing the other LDO to remain operational - preserving partial system functionality during localized thermal stress, unlike monolithic shutdown schemes.
ISL9016IRUBBZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 6-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 1.5V, 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -, -
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 67 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Soft Start, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTDFN (1.6x1.6)
ISL9016IRUBBZ-T FAQ
1.How can I place an order for ISL9016IRUBBZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9016IRUBBZ-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 ISL9016IRUBBZ-T reliable?
The price and inventory of ISL9016IRUBBZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9016IRUBBZ-T is usually 5 days.
3.What payment methods are accepted for ISL9016IRUBBZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9016IRUBBZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9016IRUBBZ-T?
ISL9016IRUBBZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9016IRUBBZ-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 ISL9016IRUBBZ-T?
For technical support, including ISL9016IRUBBZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9016IRUBBZ-T requirements.
6.How does Aetrix verify that ISL9016IRUBBZ-T is sourced from the original manufacturer or authorized distributors?
All ISL9016IRUBBZ-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 ISL9016IRUBBZ-T meets industry standards.
7.What is the process for return or replacement of ISL9016IRUBBZ-T?
All ISL9016IRUBBZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL9016IRUBBZ-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 ISL9016IRUBBZ-T part is unused and in its original packaging.
Return procedure for ISL9016IRUBBZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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