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Renesas EL7516IYZ-T13
- Part No.:
- EL7516IYZ-T13
- Manufacturer:
- Renesas
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7516IYZ-T13.pdf
- Description:
- IC REG BOOST ADJ 1.3A 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,989
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Product details
Overview
EL7516IYZ-T13 from Intersil is a constant-frequency PWM step-up DC/DC regulator with integrated 1.5A/200mΩ MOSFET, selectable 620kHz or 1.25MHz switching frequency, 1.294V feedback reference, and operation from 2.5V–5.5V input to 5V–18V output - used in TFT-LCD bias supplies and portable display power rails.
For engineers reviewing the EL7516IYZ-T13 datasheet, EL7516IYZ-T13 pinout, EL7516IYZ-T13 application, or EL7516IYZ-T13 equivalent, key selection considerations include soft-start control via external capacitor, external compensation network for transient response tuning, thermal shutdown at 130°C, and compatibility with low-ESR ceramic output capacitors.
Technical Context
The EL7516IYZ-T13 implements current-mode PWM control with an internal transconductance error amplifier (90–170 µS), fixed 1.294V reference, and dual-frequency selection via FSEL pin (GND = 620kHz, VDD = 1.25MHz). It uses a fused-lead MSOP-8 package optimized for high-frequency operation and minimal board area.
Its architecture supports continuous conduction mode (CCM) boost conversion with duty cycle up to 90%, peak inductor current limiting at 1.3A (min), and internal soft-start driven by a 6µA current source charging an external SS capacitor - enabling controlled output voltage ramp and reduced inrush stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Selectable 620kHz or 1.25MHz - enables smaller inductors (e.g., 2–33µH) and faster load transient response. |
| Feedback Reference Voltage | 1.294V (typ) - sets output voltage via resistor divider: VOUT = 1.294V × (1 + R1/R2). |
| Integrated Power Switch | 1.5A (typ), 200mΩ (rDS-ON at VDD = 2.7V) - supports up to ~330mA output at 3.3V→12V @ 1.25MHz. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion, Li-polymer, or 3.3V/5V system rails. |
| Quiescent Current (Shutdown) | <10µA - minimizes battery drain in standby mode for portable equipment. |
| Thermal Shutdown Threshold | 130°C (typ) - protects device during overload or poor PCB thermal design. |
| Soft-Start Control | External capacitor on SS pin - allows programmable output voltage ramp rate to limit inrush current. |
Pinout & Package
EL7516IYZ-T13 is housed in an 8-lead MSOP package (MDP0043), 3.0mm × 4.9mm footprint, maximum height 1.1mm - RoHS-compliant with matte tin termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COMP | Error amplifier output | Connects external RC compensation network to stabilize voltage loop and optimize transient response. |
| 2 - FB | Feedback input | Senses divided output voltage; internal 1.294V reference sets regulation point. |
| 3 - SHDN | Shutdown control | Active-low logic input; pulls low to disable switching and reduce IQ to <10µA. |
| 4 - GND | Analog & power ground | Common return for feedback, compensation, and power paths - requires low-impedance PCB plane. |
| 5 - LX | Switch node | Drain of internal MOSFET; connects to inductor and Schottky diode anode - high dV/dt node requiring careful layout. |
| 6 - VDD | Analog supply input | Power for internal circuitry; bypass with 0.1µF ceramic capacitor placed adjacent to pin. |
| 7 - FSEL | Frequency select | GND = 620kHz, VDD = 1.25MHz - determines inductor size and noise profile. |
| 8 - SS | Soft-start control | Accepts external capacitor to set output voltage ramp time and limit peak inductor current at startup. |
Key Features
| Feature | Design Value |
|---|---|
| High-efficiency boost conversion | >90% typical efficiency at 3.3V→12V/1.25MHz - reduces thermal load in space-constrained displays. |
| Adjustable soft-start | Externally programmable via SS pin capacitor - prevents output overshoot and limits inrush into large output caps. |
| Flexible frequency selection | 620kHz or 1.25MHz via FSEL pin - balances EMI, inductor size, and transient performance. |
| External loop compensation | RC network on COMP pin - enables optimization for specific output capacitor ESR and load dynamics. |
| Low shutdown current | <10µA - extends battery life in always-on portable systems with display backlight control. |
Applications
| TFT-LCD Display Power | Digital Camera Backlight Supply |
|---|---|
Use Scenario: Generating 12V–18V bias rails for LCD source/gate drivers in handheld and tablet displays. IC Role / Device Role / Timing Role: Primary step-up regulator delivering regulated high-voltage rail from single-cell battery input. Use Value: High 90%+ efficiency at light-to-moderate loads preserves battery runtime; 1.25MHz operation allows compact 2.2µH inductor placement near display module. | Use Scenario: Providing adjustable white LED driver supply in compact digital cameras with limited PCB area. IC Role / Device Role / Timing Role: Boost converter supplying stable voltage to LED current regulators or analog backlight ICs. Use Value: Soft-start control prevents flash-induced camera reset; 620kHz option lowers EMI near image sensor circuits. |
| DSL Modem Line Card Power | GSM/CDMA Phone RF Front-End Bias |
Use Scenario: Generating isolated 5V–9V auxiliary rails for line interface ICs and PHY transceivers in DSL modems. IC Role / Device Role / Timing Role: Efficient local DC/DC converter replacing inefficient linear regulators on line card PCBs. Use Value: 2.5V minimum input supports wide-input-range designs; thermal shutdown protects against overtemperature in enclosed enclosures. | Use Scenario: Supplying 5V–8V bias to PA modules and RF switches in multi-band cellular handsets. IC Role / Device Role / Timing Role: Compact, low-profile boost stage powering RF subsystems from main battery rail. Use Value: MSOP-8 package (1.1mm max height) fits tight vertical clearance constraints; 1.25MHz switching avoids interference with cellular band frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL97516 | Pin-to-pin compatible; higher 2.0A current limit (vs. 1.5A), 150°C thermal shutdown (vs. 130°C), fixed logic thresholds. | Supports higher output current and extended ambient temperature range; eliminates need for external level-shifting on SHDN. | Preferred for new designs requiring higher reliability margin or simplified SHDN interface. |
| TPS61088RHLR | 4.5A switch, 2.7V–12V input, 4.5V–18V output, 2.5V feedback reference - not pin-compatible; requires different layout and compensation. | Enables higher-power applications (e.g., larger displays); wider VIN/VOUT ranges but larger QFN package. | Consider when >500mA output current or >5.5V input capability is required. |
Compared with EL7516IYZ-T13, ISL97516 offers improved current handling and thermal robustness without layout change, while TPS61088RHLR provides significantly higher power delivery at the cost of redesign effort and larger footprint.
Availability
EL7516IYZ-T13 is available at Aetrix Electronics and suitable for TFT-LCD displays, DSL modems, and portable equipment requiring stable component supply with long-lifecycle support.
Supply support for EL7516IYZ-T13 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 computing, communications, and consumer electronics.
The EL7516 product line delivers compact, high-frequency boost regulators targeting portable display and battery-powered applications where efficiency, small size, and thermal resilience are critical.
FAQ
What is the recommended input capacitor value for EL7516IYZ-T13?
A minimum 10µF ceramic input capacitor is required; for applications near maximum output current, 22µF–47µF is recommended. A 0.1µF high-frequency bypass capacitor must be placed adjacent to the VDD pin to suppress supply noise and ensure stable operation of the EL7516IYZ-T13 internal circuitry.
How does the FSEL pin affect EL7516IYZ-T13 performance?
The FSEL pin selects switching frequency: grounded for 620kHz, tied to VDD for 1.25MHz. Higher frequency enables smaller inductors and faster transient response but increases switching losses. The EL7516IYZ-T13's 1.25MHz mode is commonly used in TFT-LCD applications to minimize solution size while maintaining >90% efficiency.
Can EL7516IYZ-T13 drive a 12V output from a 2.5V input?
Yes - the EL7516IYZ-T13 supports input voltages down to 2.5V and output voltages up to 18V. At 2.5V→12V with 1.25MHz switching, typical maximum output current is 250mA (per Table 1), making it suitable for low-input, high-ratio boost applications like portable display bias rails.
What is the purpose of the COMP pin on EL7516IYZ-T13?
COMP is the output of the internal transconductance error amplifier. Connecting an RC network from COMP to GND sets the dominant pole and zero for voltage-loop compensation, enabling optimization of stability, load transient response, and output regulation accuracy for the specific output capacitor ESR and load conditions used with the EL7516IYZ-T13.
Is EL7516IYZ-T13 RoHS compliant?
Yes - EL7516IYZ-T13 is a Pb-free plus anneal product with 100% matte tin plate termination, fully compliant with RoHS Directive 2011/65/EU and compatible with both SnPb and Pb-free soldering processes per IPC/JEDEC J-STD-020 reflow profiles.
EL7516IYZ-T13 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:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.6V
- Voltage - Output (Max):
- 18V (Switch)
- Current - Output:
- 1.3A (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
EL7516IYZ-T13 FAQ
1.How can I place an order for EL7516IYZ-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7516IYZ-T13 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-T13 reliable?
The price and inventory of EL7516IYZ-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7516IYZ-T13 is usually 5 days.
3.What payment methods are accepted for EL7516IYZ-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7516IYZ-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7516IYZ-T13?
EL7516IYZ-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7516IYZ-T13 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-T13?
For technical support, including EL7516IYZ-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7516IYZ-T13 requirements.
6.How does Aetrix verify that EL7516IYZ-T13 is sourced from the original manufacturer or authorized distributors?
All EL7516IYZ-T13 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-T13 meets industry standards.
7.What is the process for return or replacement of EL7516IYZ-T13?
All EL7516IYZ-T13 units undergo pre-shipment inspection (PSI). If there is an issue with EL7516IYZ-T13, 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-T13 part is unused and in its original packaging.
Return procedure for EL7516IYZ-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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