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Renesas EL7516IYZ-T7
- Part No.:
- EL7516IYZ-T7
- Manufacturer:
- Renesas
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7516IYZ-T7.pdf
- Description:
- IC REG BOOST 0.6A 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,687
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Product details
Overview
EL7516IYZ-T7 from Intersil is a constant-frequency PWM step-up DC/DC regulator with integrated 1.5A/200mΩ MOSFET, selectable 600kHz or 1.2MHz switching frequency, 1.294V feedback reference, and operation from 2.5V–5.5V input to 5V–18V output. It delivers up to 600mA output current at >90% efficiency and targets TFT-LCD bias supplies.
For engineers reviewing the EL7516IYZ-T7 datasheet, EL7516IYZ-T7 pinout, EL7516IYZ-T7 application, or EL7516IYZ-T7 equivalent, key selection factors include its MSOP-8 package height (≤1.1mm), external compensation for ceramic capacitor compatibility, adjustable soft-start, thermal shutdown at 130°C, and shutdown current <10µA.
Technical Context
The EL7516IYZ-T7 implements current-mode PWM control with an internal transconductance error amplifier (GM = 90–170 µS) and fixed 1.294V reference. Its dual-frequency selection (FSEL pin logic-controlled) enables optimization between inductor size and transient response.
It features cycle-by-cycle peak current limiting (1.3A min), internal UVLO (2.51V turn-on), and a dedicated LX pin for high-side switch node routing. The COMP pin supports RC network compensation to stabilize the voltage loop while the fast current loop remains inherently stable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Selectable 600kHz or 1.2MHz - enables use of smaller inductors (e.g., 2–33µH) and faster load transient response. |
| Feedback Reference Voltage | 1.294V (typ) - sets output via resistor divider; allows precise VOUT = 1.294V × (1 + R1/R2). |
| Integrated Power Switch | 1.5A, 200mΩ MOSFET - supports up to ~330mA at 3.3V→12V @1.2MHz without external FET. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion, 3.3V, and 5V rails in portable systems. |
| Shutdown Current | <10µA - preserves battery life in standby mode for handheld and display applications. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and consumer portable equipment environments. |
| Package | 8-pin MSOP, max height 1.1mm - low-profile surface-mount package suitable for space-constrained LCD modules. |
Pinout & Package
EL7516IYZ-T7 is housed in an 8-lead MSOP package (MDP0043) with maximum height of 1.1mm and RoHS-compliant matte tin termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COMP | Error amplifier output | Connects external RC network to set compensation zero/pole; critical for stability with low-ESR ceramic output capacitors. |
| 2 - FB | Voltage feedback input | Senses divided output voltage; internal 1.294V reference enables programmable VOUT using two external resistors. |
| 3 - SHDN | Active-low enable control | Pull low to disable switching and reduce quiescent current to <10µA; threshold varies with VIN (e.g., ~1.25V at 5V supply). |
| 4 - GND | Analog and power ground | Common return for feedback, compensation, and power paths; requires low-impedance PCB copper pour for thermal and noise performance. |
| 5 - LX | Switch node | Drain of internal MOSFET; connects to inductor and Schottky diode anode; high dv/dt node requiring short, wide trace routing. |
| 6 - VDD | Analog supply input | Power for internal circuitry; requires local 0.1µF bypass capacitor placed adjacent to pin for noise immunity. |
| 7 - FSEL | Frequency select input | Ground = 600kHz; connect to VDD = 1.2MHz - selects switching frequency without external clock source. |
| 8 - SS | Soft-start control | Internal 6µA current source charges external capacitor; controls output voltage ramp rate to limit inrush current. |
Key Features
| Feature | Design Value |
|---|---|
| High-efficiency boost conversion | >90% typical efficiency at 3.3V→12V/1.2MHz enables longer battery runtime in portable displays. |
| External loop compensation | COMP pin supports user-configurable RC network - allows optimization for specific output capacitor ESR and load dynamics. |
| Adjustable soft-start | SS pin accepts external capacitor to program startup slew rate - prevents input rail droop and output overshoot during power-up. |
| Thermal protection | Internal shutdown at ~130°C junction temperature - prevents damage during overload or poor heatsinking conditions. |
| Pb-free MSOP package | RoHS-compliant matte tin finish on 8-lead MSOP - compatible with both SnPb and Pb-free reflow profiles per J-STD-020. |
Applications
| TFT-LCD Display Bias Supply | DSL Modem Power Rail |
|---|---|
Use Scenario: Generating 12V or 18V bias voltage for TFT panel gate drivers and source drivers from a 3.3V or 5V system rail. IC Role / Device Role / Timing Role: Primary step-up regulator delivering regulated high-voltage rail with fast transient response to handle dynamic pixel charging loads. Use Value: High efficiency (>90%) and 1.2MHz operation minimize inductor size and board area in ultra-thin display modules. | Use Scenario: Providing isolated 5V or 9V auxiliary supply for line driver ICs and PHY interfaces in DSL modems operating from 3.3V main rail. IC Role / Device Role / Timing Role: Compact, efficient boost converter enabling single-rail input architecture without discrete transformer-based isolation. Use Value: MSOP-8 footprint and <10µA shutdown current support low-power sleep modes required by DSL standards. |
| Digital Camera Backlight Driver | GSM/CDMA Handset Power Management |
Use Scenario: Driving white LED strings or generating high-voltage bias for CCD/CMOS sensor analog front-ends in compact digital cameras. IC Role / Device Role / Timing Role: High-frequency boost regulator supplying stable output despite rapidly varying load currents during image capture bursts. Use Value: 600kHz/1.2MHz frequency selection allows trade-off between EMI filtering complexity and component miniaturization. | Use Scenario: Supplying 5V or higher rails for RF power amplifiers, audio codecs, or SIM interface circuitry in dual-mode GSM/CDMA handsets. IC Role / Device Role / Timing Role: Efficient, low-quiescent-current boost stage supporting battery voltage sag (down to 2.5V) during transmit peaks. Use Value: Wide 2.5V–5.5V input range and thermal shutdown ensure reliable operation across full battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL97516 | Pin-to-pin compatible; higher current limit (2.0A typ vs. 1.5A); fixed logic thresholds; OTP at 150°C vs. 130°C. | Supports higher output current and extended ambient temperature range; eliminates need for external level-shifting on SHDN/FSEL. | Preferred for new designs requiring improved thermal margin or simplified interface logic. |
| TPS61088RHLR | 5.5V max input; 2.5A switch; 2.5V–12V output; integrated diode; no FSEL pin; different compensation scheme. | Eliminates external Schottky diode; wider output range; lacks frequency select but offers higher peak current capability. | Consider when board space reduction (no diode) and higher output current are prioritized over frequency flexibility. |
Compared with EL7516IYZ-T7, ISL97516 offers enhanced thermal robustness and simplified logic interfacing, while TPS61088RHLR trades frequency selectability for integrated diode and higher current capacity - both require layout review due to differing pin functions and compensation requirements.
Availability
EL7516IYZ-T7 is available at Aetrix Electronics and suitable for TFT-LCD displays, DSL modems, and portable equipment requiring stable component supply, RoHS-compliant packaging, and long-lifecycle availability.
Supply support for EL7516IYZ-T7 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 and power management ICs for industrial, computing, and communications markets.
The EL7516 product line delivers compact, high-frequency boost regulators optimized for space- and efficiency-critical portable electronics, especially display bias and battery-powered subsystems.
FAQ
What is the maximum output voltage supported by the EL7516IYZ-T7?
The EL7516IYZ-T7 supports output voltages from 5V up to 18V, determined by the external feedback resistor divider and limited by the absolute maximum LX-to-GND rating of 18V. Output voltage is calculated as VOUT = 1.294V × (1 + R1/R2), where R1 and R2 form the divider from VOUT to GND. Operation above 18V risks permanent damage to the internal MOSFET.
How does the FSEL pin affect switching frequency in the EL7516IYZ-T7?
The FSEL pin on the EL7516IYZ-T7 selects between two fixed switching frequencies: grounding FSEL sets 600kHz operation, while connecting it to VDD selects 1.2MHz. This selection directly impacts inductor size, output ripple, and transient response - 1.2MHz allows smaller inductors (e.g., 4.7µH vs. 10µH) and faster load step recovery, as confirmed in Figures 1–12 of the FN7333 datasheet.
Can the EL7516IYZ-T7 operate from a 2.5V input supply?
Yes, the EL7516IYZ-T7 operates from a minimum input voltage of 2.5V, with guaranteed start-up at VDD-ON ≥2.51V. At 2.5V input, it can generate outputs such as 5V (570mA max), 9V (325mA), or 12V (250mA) as specified in Table 1 of the datasheet - making it suitable for single-cell Li-ion or NiMH battery-powered devices across their full discharge range.
What is the purpose of the COMP pin on the EL7516IYZ-T7?
The COMP pin on the EL7516IYZ-T7 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 ensure stability with low-ESR ceramic output capacitors - a key design requirement explicitly stated in the Applications Information section of the FN7333 datasheet.
Is the EL7516IYZ-T7 pin-compatible with the ISL97516?
Yes, the EL7516IYZ-T7 is pin-compatible with the ISL97516, as confirmed in the "NOT RECOMMENDED FOR NEW DESIGNS" note and Table 2 of the FN7333 datasheet. Both share identical 8-pin MSOP pinout, function mapping, and footprint (MDP0043), though ISL97516 features higher current limit (2.0A), elevated thermal shutdown (150°C), and fixed logic thresholds - requiring no PCB changes for drop-in replacement in existing EL7516IYZ-T7 designs.
EL7516IYZ-T7 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:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
EL7516IYZ-T7 FAQ
1.How can I place an order for EL7516IYZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7516IYZ-T7 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 EL7516IYZ-T7 reliable?
The price and inventory of EL7516IYZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7516IYZ-T7 is usually 5 days.
3.What payment methods are accepted for EL7516IYZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7516IYZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7516IYZ-T7?
EL7516IYZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7516IYZ-T7 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 EL7516IYZ-T7?
For technical support, including EL7516IYZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7516IYZ-T7 requirements.
6.How does Aetrix verify that EL7516IYZ-T7 is sourced from the original manufacturer or authorized distributors?
All EL7516IYZ-T7 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 EL7516IYZ-T7 meets industry standards.
7.What is the process for return or replacement of EL7516IYZ-T7?
All EL7516IYZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with EL7516IYZ-T7, 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 EL7516IYZ-T7 part is unused and in its original packaging.
Return procedure for EL7516IYZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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