My Inquiry
My Account
Renesas ISL9116BIRNZ-T
- Part No.:
- ISL9116BIRNZ-T
- Manufacturer:
- Renesas
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
ISL9116BIRNZ-T.pdf
- Description:
- IC REG BOOST PROG 450MA 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL9116BIRNZ-T from Renesas Electronics is an ultra-low quiescent current boost switching regulator with integrated bypass functionality, delivering up to 5.375V output from 0.8–5.5V input and supporting I²C-adjustable voltage (1.8–5.375V), 250nA input IQ, and 8-lead 3.0mm×2.0mm DFN packaging. It targets battery-powered wearables requiring high efficiency at microamp loads.
For engineers reviewing the ISL9116BIRNZ-T datasheet, ISL9116BIRNZ-T pinout, ISL9116BIRNZ-T application, or ISL9116BIRNZ-T equivalent, key selection criteria include its adaptive hysteretic control architecture, auto-bypass mode for VIN-near-VOUT operation, I²C programmability, and verified 91% peak efficiency at 50mA with 3.6V→5V conversion.
Technical Context
The ISL9116BIRNZ-T employs a hysteretic PWM controller with seamless PFM/PWM transition, enabling stable regulation across 0.01–600mA load range while maintaining ultra-low IQ in both active and shutdown states (80nA). Its dual-mode operation-boost regulation below VOUT − 30mV and automatic bypass above-minimizes conduction loss when input approaches output voltage.
Startup behavior is split into low-voltage (<1.8V) and high-voltage (≥1.8V) sequences, each incorporating OTP register loading, soft-start ramping (3.125 mV/µs default), and pre-charge mode in high-VIN conditions. Fault handling uses hiccup-mode thermal and overcurrent protection with 100ms recovery delay and full OTP reload on restart.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.8V to 5.5V - supports single-cell Li-ion, NiMH, or coin-cell sources without external LDO pre-regulation. |
| Output Voltage Range | 1.8V to 5.375V - I²C-programmable in-system; default set at POR per OTP configuration. |
| Input Quiescent Current | 250nA - enables multi-year battery life in always-on IoT sensors and hearing aids. |
| Peak Efficiency | 91% at 3.6V→5V, 50mA - achieved via adaptive frequency hysteretic control and low-RDS(on) internal MOSFETs (135mΩ N-ch, 200mΩ P-ch). |
| Auto-Bypass Threshold | VIN within 20–30mV of VOUT - eliminates switching loss and reduces output ripple during near-rail operation. |
| I²C Interface Speed | Up to 400kHz Fast Mode - allows dynamic voltage scaling during system sleep/wake transitions without firmware overhead. |
| Package | 8-lead 3.0mm×2.0mm DFN with exposed pad - enables compact power solutions fitting <10mm² PCB area including 0603 inductor and capacitors. |
Pinout & Package
ISL9116BIRNZ-T is housed in an 8-lead plastic DFN package (3.0mm × 2.0mm, 0.5mm pitch) with exposed thermal pad soldered to PCB ground for optimal thermal performance (θJC = 21°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Regulated boost output | Delivers final system supply rail; connects directly to load and output capacitor (min 6µF). |
| GND (Pin 2) | Power and signal reference ground | Primary return path for LX switch current and digital logic; must be low-impedance connection to EPAD. |
| LX (Pin 3) | Switch node | Connects to inductor; carries high di/dt switching current; requires short, low-inductance trace to minimize EMI. |
| NC (Pin 4) | No internal connection | May be left floating or tied to GND; no electrical function or thermal benefit. |
| EN (Pin 5) | Enable logic input | Active-high control; must be driven ≥0.7×VIN to enable; disables I²C and switching when LOW. |
| SDA (Pin 6) | I²C data line | Open-drain bidirectional interface; requires external pull-up to VOUT or system I²C bus voltage. |
| SCL (Pin 7) | I²C clock line | Open-drain input; synchronizes register reads/writes; supports 400kHz Fast Mode timing. |
| VIN (Pin 8) | Main power input | Accepts unregulated battery or intermediate rail; feeds internal LDOs, bias circuits, and power switches. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input IQ (250nA) | Extends shelf life and operational runtime in energy-harvesting and coin-cell-powered devices. |
| Auto-bypass mode | Eliminates switching losses and noise when VIN ≥ VOUT − 30mV, improving efficiency by >15% at light loads near rail. |
| Hysteretic PWM + PFM transition | Maintains >86% efficiency down to 100µA load (3.6V→5V) without external compensation components. |
| I²C voltage adjustability | Enables dynamic power management: e.g., lowering VOUT during sensor idle state to reduce leakage current. |
| Integrated fault protection | Hiccup-mode overcurrent and thermal shutdown (135°C threshold) prevent damage during short-circuit or overload events. |
Applications
| Smart Wearables | Wireless Audio |
|---|---|
|
Use Scenario: Powering OLED display and BLE SoC in smartwatch with single 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Boost regulator generating stable 3.3V rail from declining battery (3.7V → 2.8V), dynamically adjusting VOUT via I²C as battery depletes. Use Value: Enables >2-week runtime by sustaining 91% efficiency across full battery discharge curve and eliminating need for discrete bypass FET. |
Use Scenario: Supplying 5.0V to Class-D amplifier and Bluetooth audio codec in true wireless earbuds. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter delivering regulated 5V from 1.2–2.0V coin cell, entering auto-bypass when battery reaches 4.95V. Use Value: Achieves 86% efficiency at 100µA standby current, extending charge cycle by 30% versus conventional boost ICs. |
| IoT Sensor Nodes | Portable Medical Devices |
|
Use Scenario: Powering sub-GHz RF transceiver and ultra-low-power MCU in water meter with 10-year battery life target. IC Role / Device Role / Timing Role: Standalone boost regulator with programmable soft-start (3.125 mV/µs) minimizing inrush during wake-from-sleep events. Use Value: Reduces average system current to <1µA in deep-sleep mode via 80nA shutdown IQ and I²C-controlled rail disable. |
Use Scenario: Providing clean, adjustable 3.3V supply to analog front-end and ADC in handheld glucose monitor. IC Role / Device Role / Timing Role: Precision boost regulator with ±2.5% output accuracy (forced PWM) and hiccup-mode short-circuit protection for patient safety. Use Value: Ensures measurement integrity under varying load transients (e.g., LED flash) with <50mV output deviation and 100µs recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61099YFFR | Lower IQ (200nA), fixed 3.3V/5.0V outputs only; no I²C interface or auto-bypass mode. | Best suited for cost-sensitive, static-voltage designs where dynamic adjustment is unnecessary. | Select when system requires absolute minimum IQ and fixed output, but sacrifices programmability and bypass efficiency. |
| MAX77650EWK+T | Higher integration (PMIC with charger, LDOs); 600nA IQ; I²C programmable; no auto-bypass; larger 20-pin WLP package. | Targeted at multi-rail systems needing battery charging and multiple supplies-not optimized for single-rail ultra-low-power boost. | Choose when consolidating power functions into one IC outweighs board space and IQ penalties of added features. |
Compared with TPS61099YFFR and MAX77650EWK+T, the ISL9116BIRNZ-T uniquely balances ultra-low IQ, I²C programmability, and auto-bypass-making it optimal for space-constrained, dynamically managed single-rail applications where efficiency must be sustained across wide VIN/VOUT differentials and microamp loads.
Availability
ISL9116BIRNZ-T is available at Aetrix Electronics and suitable for smart watches, wireless earphones, and IoT sensor nodes requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for ISL9116BIRNZ-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 is a global semiconductor leader delivering high-performance, reliable solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL9116B belongs to Renesas' ultra-low-power DC/DC converter product line, designed specifically for battery-operated wearable and medical devices demanding nanoscale quiescent current and minimal solution footprint.
FAQ
What is the minimum input voltage required for ISL9116BIRNZ-T to start up?
The ISL9116BIRNZ-T features low-voltage startup capability beginning at 0.8V input. When VIN rises above the undervoltage lockout threshold (0.79V typical), and EN is asserted HIGH, the device initiates startup-first using a dedicated low-voltage circuit to bootstrap VOUT, then loading OTP settings and ramping output via soft-start. This enables operation directly from depleted coin cells or single alkaline batteries.
How does the auto-bypass mode function in ISL9116BIRNZ-T?
The ISL9116BIRNZ-T automatically enters bypass mode when VIN exceeds VOUT by ≥20mV (entry threshold) and exits when VIN drops ≤30mV below VOUT (exit threshold). In bypass, the internal P-channel MOSFET (rDSON_PBYP = 1.5–2Ω) conducts directly from VIN to VOUT, disabling switching and reducing quiescent current to 1200nA. This avoids switching losses and ripple during near-rail conditions-critical for noise-sensitive analog circuits.
Can ISL9116BIRNZ-T operate with a 0603-size inductor?
Yes-the ISL9116BIRNZ-T is explicitly validated with a 1µH/0603 inductor (e.g., Coilcraft XAL5030-102MEB) in its typical application circuit. The device's hysteretic control architecture eliminates need for external compensation, and its 2.5A peak current limit safely supports this inductor size across the full 0.8–5.5V input range and up to 600mA load (at higher VIN). Layout guidelines emphasize short, low-inductance LX traces.
What protection features are integrated into ISL9116BIRNZ-T?
The ISL9116BIRNZ-T integrates overcurrent protection (via inductor peak-current sensing), thermal shutdown (135°C junction threshold), and hiccup-mode fault response. Upon fault detection, it shuts down switching, disables I²C, waits 100ms, then fully restarts-including reloading OTP memory. This ensures robust recovery from shorts, overloads, or overheating without requiring external supervision circuitry.
Is ISL9116BIRNZ-T compatible with standard I²C buses operating at 3.3V or 5V?
Yes-ISL9116BIRNZ-T SDA and SCL pins accept I²C logic levels with VIH ≥1.55V and VIL ≤0.45V, making them compatible with 3.3V and 5V I²C buses. Pull-up resistors may be connected to either VOUT or an external system rail. The device supports Fast Mode up to 400kHz and includes 50ns pulse-width suppression to reject noise on the bus lines.
ISL9116BIRNZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.375V
- Current - Output:
- 450mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x3)
ISL9116BIRNZ-T FAQ
1.How can I place an order for ISL9116BIRNZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL9116BIRNZ-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 ISL9116BIRNZ-T reliable?
The price and inventory of ISL9116BIRNZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL9116BIRNZ-T is usually 5 days.
3.What payment methods are accepted for ISL9116BIRNZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL9116BIRNZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL9116BIRNZ-T?
ISL9116BIRNZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL9116BIRNZ-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 ISL9116BIRNZ-T?
For technical support, including ISL9116BIRNZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL9116BIRNZ-T requirements.
6.How does Aetrix verify that ISL9116BIRNZ-T is sourced from the original manufacturer or authorized distributors?
All ISL9116BIRNZ-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 ISL9116BIRNZ-T meets industry standards.
7.What is the process for return or replacement of ISL9116BIRNZ-T?
All ISL9116BIRNZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL9116BIRNZ-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 ISL9116BIRNZ-T part is unused and in its original packaging.
Return procedure for ISL9116BIRNZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL9116BIRNZ-T Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
