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Renesas ISL9016IRUFBZ-T
- Part No.:
- ISL9016IRUFBZ-T
- Manufacturer:
- Renesas
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
ISL9016IRUFBZ-T.pdf
- Description:
- IC REG LINEAR 2.5V/1.5V 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,152
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Product details
Overview
ISL9016IRUFBZ-T from Intersil is a dual low-dropout linear regulator IC delivering two independent 150mA outputs with fixed voltages of 2.5V (VOUT1) and 1.5V (VOUT2), optimized for battery-powered portable electronics. It features ultra-low quiescent current (49µA single-LDO active), high PSRR (80dB @ 1kHz), low output noise (25µVRMS), and reverse current protection - enabling clean, efficient power sequencing in space-constrained handheld devices.
For engineers reviewing the ISL9016IRUFBZ-T datasheet, ISL9016IRUFBZ-T pinout, ISL9016IRUFBZ-T application, or ISL9016IRUFBZ-T equivalent, key selection criteria include dual-output voltage pairing, µTDFN-6 package compatibility, shutdown current <1µA, soft-start timing (400–600µs), and stability with 1µF ceramic capacitors - all critical for PDA, smartphone, and medical handheld power rail design.
Technical Context
The ISL9016IRUFBZ-T integrates two independent LDO regulators sharing a common VIN input but featuring separate EN1/EN2 control logic and dedicated VOUT1/VOUT2 outputs. Each LDO employs bandgap-referenced error amplifiers, thermal shutdown circuitry (trip at +145°C, reset at +110°C), and current limiting (typ. 265mA) to ensure robust operation under load transients and fault conditions.
Its architecture supports reverse current protection when VOUT > VIN - critical for systems where outputs may be externally biased - and includes soft-start ramp control (30–60µs/V) to limit inrush current during enable. The device operates across 1.8V–6.5V input while maintaining ±0.8% output accuracy at 25°C and ±1.8% over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Pair | VOUT1 = 2.5V, VOUT2 = 1.5V - fixed, factory-set outputs eliminating external feedback resistors and simplifying layout for dual-rail applications. |
| Max Output Current per Channel | 150mA - sufficient to power baseband processors, RF front-ends, or sensor subsystems without external boost stages. |
| Quiescent Current | 49µA (single LDO enabled), 80µA (both enabled) - extends battery life in always-on subsystems like real-time clocks or wake-up controllers. |
| PSRR | 80dB @ 1kHz, 45dB @ 1MHz - suppresses switching noise from adjacent DC/DC converters, preserving signal integrity in ADCs and audio codecs. |
| Dropout Voltage | 120mV @ 150mA (for VO ≥ 2.8V); 200mV @ 150mA (for 2.1V ≤ VO < 2.8V) - enables regulation from low headroom sources such as single-cell Li-ion batteries. |
| Output Noise | 25µVRMS (10Hz–100kHz) - meets stringent noise requirements for RF synthesizers and precision analog sensors. |
| Enable Propagation Delay | 400–600µs to 95% of nominal VOUT - ensures predictable power-up sequencing without external timing components. |
Pinout & Package
ISL9016IRUFBZ-T is housed in a 1.6mm × 1.6mm, 6-lead ultra-thin dual flat no-lead (µTDFN) package with exposed thermal pad (E-Pad) that must be soldered to PCB ground for thermal and electrical performance. The package is RoHS-compliant and rated MSL-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | LDO Input Supply | Common input for both regulators; requires 1µF ceramic decoupling capacitor to GND placed adjacent to pin. |
| GND (Pin 2) | System Ground Reference | Primary ground return for internal circuitry and E-Pad connection; must tie directly to low-impedance PCB ground plane. |
| EN2 (Pin 3) | LDO2 Enable Control | Active-high digital input; 100kΩ pull-up required to avoid floating; enables/disables VOUT2 independently of VOUT1. |
| EN1 (Pin 4) | LDO1 Enable Control | Active-high digital input; 100kΩ pull-up required; enables/disables VOUT1 independently - supports flexible power sequencing. |
| VOUT2 (Pin 5) | LDO2 Regulated Output | Delivers fixed 1.5V at up to 150mA; requires 1–4.7µF ceramic output capacitor with ESR ≤ 200mΩ connected directly to GND. |
| VOUT1 (Pin 6) | LDO1 Regulated Output | Delivers fixed 2.5V at up to 150mA; same capacitor requirements as VOUT2; output voltage accuracy ±0.8% at 25°C. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow staggered or selective activation of VOUT1 and VOUT2 - essential for powering SoC domains with different wake-up latencies. |
| Reverse current protection | Blocks current flow from VOUT to VIN when output is externally held high (e.g., during hot-swap or backup supply scenarios), limiting reverse leakage to <8µA. |
| Soft-start ramp rate | 30–60µs/V prevents input current surges during power-up, reducing stress on upstream DC/DC converters and battery protection circuits. |
| Thermal shutdown with hysteresis | Shuts down individual LDOs at +145°C and re-enables at +110°C - preserves functionality of unaffected channel during localized overheating. |
| Stability with low-ESR ceramics | Operates reliably with 1µF–4.7µF X5R/X7R capacitors (ESR ≤ 200mΩ), eliminating need for costly tantalum or polymer alternatives. |
Applications
| Smartphone Baseband Power | Medical Handheld Sensor Rail |
|---|---|
Use Scenario: Powering application processor I/O and memory interfaces requiring tightly regulated 2.5V and 1.5V rails with minimal noise coupling. IC Role / Device Role / Timing Role: Dual LDO providing isolated, low-noise, sequenced voltage supplies for SoC subdomains during boot and sleep transitions. Use Value: 25µVRMS noise and 80dB PSRR prevent digital switching noise from corrupting analog sensor data paths and RF receivers. | Use Scenario: Supplying precision analog front-end (AFE) and microcontroller core in portable ECG or glucose meters. IC Role / Device Role / Timing Role: Low-IQ dual regulator enabling multi-day battery life while maintaining ±0.8% output accuracy across temperature for calibrated measurements. Use Value: 49µA quiescent current (single LDO active) and <1µA shutdown current extend runtime in standby mode without compromising measurement fidelity. |
| MP3 Player Audio Codec Supply | PDA Display Backlight Bias |
Use Scenario: Delivering clean 2.5V bias to DAC/ADC and 1.5V to digital logic in portable audio players. IC Role / Device Role / Timing Role: Dual LDO replacing discrete regulators to reduce BOM count and PCB area while ensuring PSRR > 60dB at audio frequencies (10kHz). Use Value: High PSRR at 10kHz (60dB) suppresses switching ripple from Class-D amplifier supplies, lowering audible noise floor. | Use Scenario: Generating stable 2.5V for display driver IC and 1.5V for touch controller in compact PDAs. IC Role / Device Role / Timing Role: Compact dual-output regulator enabling independent enable/disable of display and touch subsystems to minimize idle power. Use Value: Separate EN1/EN2 pins allow dynamic power gating - reducing system-level standby current by disabling unused display rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6223D251MR-G | Single-channel 250mA LDO with 2.5V fixed output; no second output or EN2 control. | Requires separate regulator for 1.5V rail; increases board area and component count. | Select only if dual-output integration is unnecessary and higher single-rail current (250mA) is prioritized. |
| Ricoh RP512K251D-TR-F | Dual 200mA LDO with 2.5V/1.5V outputs but no reverse current protection and higher IQ (120µA both enabled). | Lacks reverse current blocking - unsuitable for systems with externally biased outputs or hot-swap requirements. | Consider only in cost-sensitive designs where reverse leakage tolerance exceeds 8µA and thermal margin allows higher IQ. |
Compared with XC6223D251MR-G and RP512K251D-TR-F, ISL9016IRUFBZ-T uniquely combines dual fixed outputs, reverse current protection, and sub-50µA quiescent current - making it optimal for space- and battery-constrained portable electronics where rail independence and fault resilience are mandatory.
Availability
ISL9016IRUFBZ-T is available at Aetrix Electronics and suitable for smartphone baseband power, medical handheld sensor rails, MP3 player audio codec supply, and PDA display backlight bias requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for ISL9016IRUFBZ-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 is a U.S.-based designer of high-performance analog semiconductors, specializing in power management and precision signal conditioning for portable, automotive, and industrial markets.
The ISL9016 product line was engineered specifically for ultra-low-power, dual-rail portable electronics - emphasizing minimal quiescent current, small footprint packaging, and integrated protection features to simplify power architecture in handheld devices.
FAQ
What are the fixed output voltages of the ISL9016IRUFBZ-T?
The ISL9016IRUFBZ-T provides factory-trimmed fixed outputs: VOUT1 = 2.5V and VOUT2 = 1.5V. These values are specified in the Ordering Information table of the FN6832 datasheet and cannot be adjusted via external feedback. Each output delivers up to 150mA with ±0.8% accuracy at +25°C and ±1.8% over the full –40°C to +85°C operating range. This precise dual-voltage pairing eliminates external resistor networks and reduces layout complexity in portable electronics.
Does the ISL9016IRUFBZ-T require external capacitors, and what are the recommended values?
Yes, the ISL9016IRUFBZ-T requires external ceramic capacitors for stability: a 1µF input capacitor (X5R or X7R) between VIN and GND, and individual 1µF–4.7µF output capacitors (X5R or X7R) between each VOUT pin and GND. The datasheet specifies maximum ESR of 200mΩ and mandates direct, low-inductance connections to the GND pin. Placement within 2mm of the device and connection to the exposed thermal pad are critical for achieving specified PSRR and transient response.
How does reverse current protection operate in the ISL9016IRUFBZ-T?
In the ISL9016IRUFBZ-T, reverse current protection activates automatically when VOUT exceeds VIN - a condition common during hot-swap, battery backup, or external biasing. When VIN is grounded and VOUT is held at 5.5V, reverse leakage is limited to <8µA (typical). This function isolates input and output domains without external diodes, preventing unintended discharge of backup supplies and protecting upstream power sources from backfeed currents.
What is the thermal shutdown behavior of the ISL9016IRUFBZ-T?
The ISL9016IRUFBZ-T features per-LDO thermal shutdown with hysteresis: each regulator disables independently when its junction temperature reaches +145°C and re-enables automatically at +110°C. If only one LDO exceeds thermal limits (e.g., due to higher load), the other remains operational - preserving partial system functionality. This behavior is confirmed in the Functional Description section of FN6832 and enables graceful degradation in thermally constrained handheld enclosures.
Can the ISL9016IRUFBZ-T be used with input voltages below 1.8V?
No - the ISL9016IRUFBZ-T has an absolute minimum input voltage of 1.8V, as defined in the Recommended Operating Conditions table of FN6832. Operation below this threshold risks UVLO activation (VUV− = 1.55V–1.62V), causing unregulated output or dropout. For sub-1.8V applications, alternative regulators such as the ISL9021 (1.2V min VIN) or Torex XC6206 series should be evaluated, as the ISL9016IRUFBZ-T is not characterized or guaranteed for reliable operation below 1.8V.
ISL9016IRUFBZ-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):
- 2.5V, 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.325V @ 150mA, -
- 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)
ISL9016IRUFBZ-T FAQ
1.How can I place an order for ISL9016IRUFBZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9016IRUFBZ-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 ISL9016IRUFBZ-T reliable?
The price and inventory of ISL9016IRUFBZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9016IRUFBZ-T is usually 5 days.
3.What payment methods are accepted for ISL9016IRUFBZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9016IRUFBZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9016IRUFBZ-T?
ISL9016IRUFBZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9016IRUFBZ-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 ISL9016IRUFBZ-T?
For technical support, including ISL9016IRUFBZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9016IRUFBZ-T requirements.
6.How does Aetrix verify that ISL9016IRUFBZ-T is sourced from the original manufacturer or authorized distributors?
All ISL9016IRUFBZ-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 ISL9016IRUFBZ-T meets industry standards.
7.What is the process for return or replacement of ISL9016IRUFBZ-T?
All ISL9016IRUFBZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL9016IRUFBZ-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 ISL9016IRUFBZ-T part is unused and in its original packaging.
Return procedure for ISL9016IRUFBZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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