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Renesas ISL97516IUZ-TK
- Part No.:
- ISL97516IUZ-TK
- Manufacturer:
- Renesas
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL97516IUZ-TK.pdf
- Description:
- IC REG BOOST ADJ 1.7A 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:928
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Product details
Overview
ISL97516IUZ-TK from Renesas (formerly Intersil) is a high-efficiency, constant-frequency PWM step-up DC/DC regulator with integrated 2.0A/200mΩ MOSFET, selectable 620kHz or 1.25MHz switching, 2.3V–5.5V input, and 1.1×VIN–25V output - deployed in TFT-LCD bias supplies and portable display power rails.
For engineers reviewing the ISL97516IUZ-TK datasheet, ISL97516IUZ-TK pinout, ISL97516IUZ-TK application, or ISL97516IUZ-TK equivalent, key selection criteria include its dual-frequency selectability, external compensation flexibility for ceramic capacitor compatibility, soft-start control via SS pin, thermal shutdown, and 8-lead MSOP package with 1.1mm max height.
Technical Context
The ISL97516IUZ-TK implements current-mode PWM control with internal transconductance error amplifier (70–150 µS), fixed 1.294V feedback reference, and frequency-selectable oscillator (620kHz/1.25MHz). Its architecture supports stable operation with low-ESR ceramic output capacitors via external RC compensation on the COMP pin.
It integrates a 2.0A peak-current-limited N-channel MOSFET with 200mΩ rDS(ON), operates down to 2.3V input, shuts down to <1µA quiescent current, and includes VDD UVLO (2.2V ±100mV hysteresis) and over-temperature protection at 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - enables direct battery input from single-cell Li-ion or 3×AA configurations without pre-regulation. |
| Output Voltage Range | 1.1×VIN to 25V - supports TFT-LCD gate driver (VGH/VGL) and LED backlight bias generation. |
| Switching Frequency | Selectable 620kHz or 1.25MHz - allows trade-off between inductor size (smaller at 1.25MHz) and efficiency (higher at 620kHz). |
| Peak Switch Current Limit | 2.0A typical - defines maximum deliverable output current under boost conversion constraints. |
| Feedback Reference Voltage | 1.294V ±1.3% - sets output voltage accuracy via external resistor divider (e.g., R1=85.2kΩ, R2=10kΩ → 12V). |
| Quiescent Current (Shutdown) | <1µA - minimizes battery drain in standby mode for portable devices. |
| Package | 8-lead MSOP, 1.1mm max height - surface-mount compatible with space-constrained handheld PCB layouts. |
Pinout & Package
ISL97516IUZ-TK is housed in an 8-lead MSOP package (JEDEC MO-187-AA compliant, pkg drawing M8.118A), measuring 4.9mm × 3.0mm × 1.1mm max, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COMP | Error amplifier output | Connects external RC network to set loop compensation zero/pole for stability with ceramic output caps. |
| 2 - FB | Voltage feedback input | Senses divided output voltage; internal 1.294V reference determines regulation point. |
| 3 - EN | Enable/shutdown control | Logic-low disables regulator and reduces supply current to <1µA. |
| 4 - GND | Analog and power ground | Common return for feedback, control, and power paths; requires low-impedance PCB connection. |
| 5 - LX | Power switch node | Drain of internal 2.0A MOSFET; connects to inductor and Schottky diode anode. |
| 6 - VDD | Analog supply input | Powered directly from VIN; includes UVLO (2.2V on, 2.1V off) with 100mV hysteresis. |
| 7 - FSEL | Frequency select | Ground = 620kHz; connect to VDD or HI = 1.25MHz - sets switching frequency without external clock. |
| 8 - SS | Soft-start control | External capacitor (e.g., 27nF) controls output voltage ramp rate during startup to limit inrush current. |
Key Features
| Feature | Design Value |
|---|---|
| Efficiency >90% | Achieved at 3.3V→12V, 200mA load, 1.25MHz - reduces thermal load in sealed portable enclosures. |
| Adjustable Soft-Start | Controlled by external SS capacitor - prevents input voltage sag and output overshoot during power-up. |
| Internal Thermal Protection | Triggers at 150°C junction temperature - latches off until cooldown, preventing MOSFET failure under overload. |
| Pb-free RoHS Compliance | 100% matte tin e3 termination - compatible with SnPb and Pb-free reflow profiles per J-STD-020. |
| Low-Profile MSOP Package | 1.1mm max height - enables use in ultra-thin displays and compact PCMCIA cards. |
Applications
| TFT-LCD Display Power | Digital Camera Backlight |
|---|---|
|
Use Scenario: Generating 18V VGH and –10V VGL bias voltages for active-matrix LCD panels in handheld tablets. IC Role / Device Role / Timing Role: Primary boost regulator delivering regulated high-voltage rails from 3.3V system rail. Use Value: Dual-frequency selection allows optimization for low-noise (620kHz) or compact layout (1.25MHz) without redesign. |
Use Scenario: Driving white LED strings in DSLR viewfinder and rear-panel displays requiring 12–15V from 3.3V battery. IC Role / Device Role / Timing Role: Constant-current-capable boost controller with adjustable soft-start to prevent LED flash during camera wake-up. Use Value: External COMP pin enables tight load regulation across varying LED forward voltage drift with temperature. |
| GSM/CDMA Handset RF Bias | PCMCIA Card Power Management |
|
Use Scenario: Supplying 5V–9V bias to power amplifier modules in legacy 2G/3G mobile handsets operating from 3.6V Li-ion. IC Role / Device Role / Timing Role: High-efficiency step-up converter with EN-controlled sequencing synchronized to RF transmit bursts. Use Value: <1µA shutdown current extends standby time; 2.3V minimum input supports deep battery discharge. |
Use Scenario: Providing isolated 5V/12V rails for legacy PCMCIA Type II peripherals (e.g., modems, storage) in industrial laptops. IC Role / Device Role / Timing Role: Compact, thermally robust boost stage enabling hot-swap insertion without host bus disturbance. Use Value: 1.1mm MSOP height fits within PCMCIA card thickness envelope; thermal shutdown prevents latch-up during transient overloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL97519A | Direct Renesas-recommended replacement; improved line/load regulation (±0.1%), lower IQ in shutdown (0.5µA), same pinout and 8-MSOP package. | Valid for new designs targeting extended battery life and tighter output tolerance; supports identical TFT-LCD and portable applications. | Select ISL97519A for new designs where datasheet compliance and long-term availability are prioritized. |
| TPS61088RHLR | TI part with 2.2A switch, 2.7–12V input, 4.5–20V output, 1.0MHz fixed frequency, no FSEL pin; requires different compensation design. | Better suited for higher-input systems (≥2.7V); lacks dual-frequency option but offers higher peak current and integrated soft-start. | Choose TPS61088RHLR when input exceeds 2.7V and fixed 1MHz operation suffices, accepting non-pin-compatible layout change. |
Compared with ISL97516IUZ-TK, ISL97519A delivers enhanced precision and lower shutdown current in identical form factor, while TPS61088RHLR trades frequency flexibility for higher current capability and simplified control - both require validation against specific load transient and thermal requirements.
Availability
ISL97516IUZ-TK is available at Aetrix Electronics and suitable for TFT-LCD display power, portable camera backlighting, and GSM handset RF bias applications requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for ISL97516IUZ-TK 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) is a global semiconductor leader specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and consumer markets.
The ISL97516IUZ-TK belongs to Renesas' high-frequency boost regulator product line, engineered specifically for space-constrained, battery-powered display and portable equipment requiring efficient, low-profile DC/DC conversion.
FAQ
What is the recommended input capacitor value for ISL97516IUZ-TK?
The ISL97516IUZ-TK requires a minimum 10µF input capacitor; for applications near maximum output current, 22µF–47µF is recommended. A 0.1µF high-frequency ceramic bypass capacitor must be placed close to the VDD pin to suppress supply noise and ensure stable PWM operation - this is critical for maintaining regulation accuracy and minimizing EMI in portable designs.
Does ISL97516IUZ-TK support output voltages above 25V?
No, ISL97516IUZ-TK has a maximum rated LX-to-GND voltage of 27V and is specified for outputs up to 25V. For >25V applications, Renesas recommends using the cascaded MOSFET topology shown in Figure 14 of the FN9261 datasheet, where an external 25V+ N-channel MOSFET replaces the internal switch - ISL97516IUZ-TK then controls gate drive only.
How does the FSEL pin affect ISL97516IUZ-TK performance?
The FSEL pin selects switching frequency: grounded → 620kHz (higher efficiency, larger inductors); tied to VDD → 1.25MHz (faster transient response, smaller inductors/caps). This choice directly impacts inductor size, output ripple, and thermal performance - 620kHz yields ~2–3% higher efficiency at 200mA, while 1.25MHz reduces inductor volume by ~50% for same L value.
What is the purpose of the COMP pin on ISL97516IUZ-TK?
COMP is the output of the internal transconductance error amplifier and serves as the compensation node for the voltage feedback loop. Connecting an RC network (e.g., 4.7kΩ + 4.7nF) from COMP to GND sets the dominant pole and zero to stabilize the current-mode control loop - essential for maintaining phase margin with low-ESR ceramic output capacitors and avoiding oscillation under dynamic loads.
Is ISL97516IUZ-TK pin-compatible with ISL97519A?
Yes, ISL97516IUZ-TK and ISL97519A share identical 8-lead MSOP package, pinout, and functional mapping - including COMP, FB, EN, FSEL, SS, LX, VDD, and GND. The ISL97519A is explicitly designated by Renesas as the recommended replacement, offering improved specifications while maintaining full mechanical and electrical drop-in compatibility.
ISL97516IUZ-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- 25V
- Current - Output:
- 1.7A (Switch)
- Frequency - Switching:
- 620kHz, 1.25MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ISL97516IUZ-TK FAQ
1.How can I place an order for ISL97516IUZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL97516IUZ-TK 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 ISL97516IUZ-TK reliable?
The price and inventory of ISL97516IUZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL97516IUZ-TK is usually 5 days.
3.What payment methods are accepted for ISL97516IUZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL97516IUZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL97516IUZ-TK?
ISL97516IUZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL97516IUZ-TK 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 ISL97516IUZ-TK?
For technical support, including ISL97516IUZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL97516IUZ-TK requirements.
6.How does Aetrix verify that ISL97516IUZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL97516IUZ-TK 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 ISL97516IUZ-TK meets industry standards.
7.What is the process for return or replacement of ISL97516IUZ-TK?
All ISL97516IUZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL97516IUZ-TK, 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 ISL97516IUZ-TK part is unused and in its original packaging.
Return procedure for ISL97516IUZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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