My Inquiry
My Account
Renesas EL7515IYZ-T7
- Part No.:
- EL7515IYZ-T7
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7515IYZ-T7.pdf
- Description:
- IC REG BOOST ADJ 1A 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,086
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
EL7515IYZ-T7 from Intersil is a high-frequency PWM step-up DC/DC regulator with integrated 1.4A N-channel MOSFET, delivering up to 600mA output current at 92% efficiency, adjustable switching frequency up to 1.2MHz, and operation from 1.8V–13.2V input to 4.5V–17V output - designed for DSL line cards and portable TFT-LCD bias supplies.
For engineers reviewing the EL7515IYZ-T7 datasheet, EL7515IYZ-T7 pinout, EL7515IYZ-T7 application, or EL7515IYZ-T7 equivalent, key selection criteria include its 10-lead MSOP package (1.1mm max height), <1µA shutdown current, internal thermal shutdown at +135°C, low-battery detection (LBI/LBO), and soft-start control via external capacitor - all critical for space-constrained, battery-powered systems requiring stable boost conversion.
Technical Context
The EL7515IYZ-T7 operates in fixed-frequency PWM mode using an internal oscillator controlled by the RT pin resistor, supporting continuous or discontinuous conduction modes depending on load and inductor selection. Its peak-current-limited architecture enforces a guaranteed 1A minimum and 1.4A typical current limit.
Start-up uses a two-stage sequence: a dedicated start-up oscillator activates at ~1.7V VDD, followed by PWM takeover at ~3.7V; soft-start is implemented via a 12µA current source charging an external capacitor on the SS pin, directly controlling output voltage ramp rate and inrush current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 13.2V - supports single Li-ion, 2–4 NiMH/alkaline cells without external LDO pre-regulation. |
| Output Voltage Range | 4.5V to 17V - programmable via FB resistor divider; enables 3.3V→5V, 5V→12V, or 9V→15V boost rails. |
| Switching Frequency | Adjustable up to 1.2MHz via RT pin - allows compact magnetics and minimizes PCB footprint (<0.25in² typical). |
| Peak Switch Current Limit | 1.4A typical (1A min) - sets maximum deliverable output current based on VIN, VOUT, and inductor value. |
| Shutdown Current | <1µA - preserves battery life in standby; enabled via EN pin logic-low threshold ≤0.5V. |
| Feedback Reference Voltage | 1.33V typical (1.29–1.37V) - determines output accuracy and stability of resistor-divider-based regulation. |
| Package | 10-lead MSOP, 3.0mm × 4.9mm × 1.1mm max - RoHS-compliant Pb-free (e3 matte tin finish), MSL-3 compatible. |
Pinout & Package
EL7515IYZ-T7 is housed in a 10-lead MSOP package (MDP0043) with 0.5mm pitch, 3.0mm × 4.9mm body, and 1.1mm maximum height - optimized for thermally demanding, space-constrained layouts where SGND and PGND separation is critical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PGND) | Power ground | Source connection of internal N-MOSFET; must be low-inductance path to input/output capacitors. |
| 2 (SGND) | Signal ground | Reference for FB, EN, LBI, SS, RT; single-point tie to PGND only - prevents noise coupling into feedback loop. |
| 3 (RT) | Oscillator timing | Resistor-to-ground sets switching frequency (600–1200kHz); open-circuit disables oscillator. |
| 4 (EN) | Enable control | Logic-high (>1.6V) enables regulation; logic-low (≤0.5V) forces shutdown with <1µA quiescent draw. |
| 5 (LBI) | Low-battery sense input | Analog input thresholded at 180–250mV; used to detect battery depletion before regulation fails. |
| 6 (LBO) | Low-battery open-drain output | Sinks 1mA when LBI falls below threshold; drives external LED or microcontroller interrupt. |
| 7 (SS) | Soft-start control | Capacitor-to-ground controls output voltage ramp time; prevents inrush current and overshoot. |
| 8 (FB) | Voltage feedback | High-impedance input (0.1µA bias) referenced to 1.33V; connects to resistor divider for output programming. |
| 9 (VDD) | Internal circuit supply | Internally regulated supply (max 12V); requires local 0.1µF bypass close to pin for stability. |
| 10 (LX) | Switch node | Drain of internal N-MOSFET; connects to inductor and catch diode; high dv/dt node requiring short layout. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.4A N-MOSFET | Eliminates external switch and gate driver; reduces BOM count and layout complexity for boost topologies. |
| Adjustable soft-start | External capacitor on SS pin enables precise control of output voltage rise time and inrush current limiting. |
| Low-battery detection (LBI/LBO) | Dedicated analog comparator with 220mV typical threshold provides early warning of battery depletion. |
| Internal thermal shutdown | Activates at +135°C junction temperature to prevent damage during overload or poor heatsinking. |
| Pb-free MSOP package | RoHS-compliant e3 matte tin finish; qualified for both SnPb and Pb-free reflow profiles per J-STD-020. |
Applications
| DSL Line Card Power | TFT-LCD Bias Supply |
|---|---|
Use Scenario: Generating stable 12V/300mA rail from 3.3V or 5V backplane in ADSL/VDSL line interface cards. IC Role / Device Role / Timing Role: Primary step-up regulator providing isolated, ripple-controlled bias for line drivers and analog front-end. Use Value: 1.2MHz operation enables use of 10µH inductors and ceramic output caps, reducing board area by >40% vs. 300kHz alternatives. |
Use Scenario: Producing 15V–17V gate drive voltage for TFT-LCD source drivers from single-cell lithium battery (2.7–4.2V). IC Role / Device Role / Timing Role: High-efficiency boost converter with soft-start and low-noise feedback path for display panel power management. Use Value: <1µA shutdown current extends battery runtime in always-on display modules; LBO flag triggers graceful panel dimming before cutoff. |
| Portable Medical Instrument | Industrial Sensor Node |
Use Scenario: Powering 5V ADC reference and op-amp rails from 3V coin cell or alkaline stack in handheld diagnostics devices. IC Role / Device Role / Timing Role: Compact, low-quiescent boost IC ensuring stable analog signal chain supply across battery discharge curve. Use Value: 1.8V minimum start-up enables full functionality down to 2.0V battery voltage; 92% peak efficiency preserves limited energy budget. |
Use Scenario: Generating 12V for RS-485 transceivers and 5V for microcontroller from 3.3V system rail in remote IoT sensor nodes. IC Role / Device Role / Timing Role: Dual-rail boost controller with enable and thermal protection for unattended field deployments. Use Value: Internal thermal shutdown prevents latch-up in sealed enclosures; EN pin allows firmware-controlled power cycling to conserve energy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | Higher 8A switch current, 2.7–12V input, fixed 500kHz/2.2MHz options; no LBO/LBI pins. | Lacks integrated low-battery monitoring; better suited for high-current, non-battery-critical loads. | Choose when >600mA output or higher input voltage range is required, and battery monitoring is handled externally. |
| MAX17222ETA+ | Lower 0.5A switch current, 0.7–5.5V input, 1.8–5.25V output; 1.2MHz fixed frequency; smaller 6-pin WLP. | Targeted at ultra-low-power sub-500mA applications; no thermal shutdown or soft-start adjustment. | Prefer for space-constrained, sub-300mA designs where LBO/thermal protection are not mandatory. |
Compared with TPS61088RHLR and MAX17222ETA+, the EL7515IYZ-T7 uniquely combines integrated low-battery detection, adjustable soft-start, and 1.2MHz programmability in a 10-lead MSOP - making it optimal for DSL and portable display systems needing coordinated power sequencing and battery health awareness.
Availability
EL7515IYZ-T7 is available at Aetrix Electronics and suitable for DSL line cards, TFT-LCD bias supplies, and portable medical instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for EL7515IYZ-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) is a U.S.-based analog and power management semiconductor company founded in 1967, specializing in high-performance DC/DC converters, precision amplifiers, and interface ICs.
The EL7515IYZ-T7 belongs to Intersil's high-frequency PWM boost regulator product line, engineered specifically for DSL, portable displays, and battery-powered equipment where small size, high efficiency, and intelligent power management features are essential.
FAQ
What is the minimum input voltage required for EL7515IYZ-T7 to start regulation?
The EL7515IYZ-T7 begins start-up when VDD reaches approximately 1.7V, and achieves full PWM regulation above ~3.7V. Its specified minimum operating input voltage is 1.8V, enabling reliable operation from a single Li-ion cell (2.7–4.2V) or two alkaline cells (up to 3.2V fresh). Below 1.8V, the device remains in undervoltage lockout and draws <1µA.
Does EL7515IYZ-T7 support adjustable output voltage, and how is it set?
Yes, EL7515IYZ-T7 supports fully adjustable output voltage from 4.5V to 17V using an external resistor divider connected to the FB pin. The output is set by VOUT = VFB × (1 + R1/R2), where VFB is 1.33V typical. Resistor values should keep total divider current below 10µA to maintain efficiency and noise immunity - a common configuration uses R2 = 10kΩ and R1 = 82kΩ for 12V output.
How does the low-battery detection feature work on EL7515IYZ-T7?
The EL7515IYZ-T7 implements low-battery detection via the LBI and LBO pins: LBI accepts a scaled-down battery voltage (e.g., via resistive divider), and triggers when that voltage falls below 180–250mV (typical 220mV). Upon detection, LBO asserts a low-active open-drain signal capable of sinking 1mA - usable to drive an LED indicator or interrupt a microcontroller, enabling graceful shutdown before regulation collapse.
What thermal protection mechanisms does EL7515IYZ-T7 include?
EL7515IYZ-T7 incorporates internal thermal shutdown that activates at approximately +135°C junction temperature, halting switching and forcing the device into safe, low-current state until temperature decreases. This complements external layout best practices - such as maximizing copper area around SGND and separating PGND/SGND - to ensure reliable operation under sustained 600mA loads in compact enclosures.
Is EL7515IYZ-T7 pin-compatible with other members of the EL7515 family?
Yes, EL7515IYZ-T7 shares identical pinout, electrical characteristics, and package (10-lead MSOP) with all EL7515 variants including EL7515IY, EL7515IY-T7, and EL7515IYZ. The "Z" suffix denotes Pb-free (RoHS-compliant) construction with e3 matte tin termination, while "T7" indicates 7-inch tape-and-reel packaging - both mechanically and electrically interchangeable in existing designs.
EL7515IYZ-T7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-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):
- 1.8V
- Voltage - Input (Max):
- 13.2V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- 17V
- Current - Output:
- 1A (Switch)
- Frequency - Switching:
- 670kHz ~ 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
EL7515IYZ-T7 FAQ
1.How can I place an order for EL7515IYZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7515IYZ-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 EL7515IYZ-T7 reliable?
The price and inventory of EL7515IYZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7515IYZ-T7 is usually 5 days.
3.What payment methods are accepted for EL7515IYZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7515IYZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7515IYZ-T7?
EL7515IYZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7515IYZ-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 EL7515IYZ-T7?
For technical support, including EL7515IYZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7515IYZ-T7 requirements.
6.How does Aetrix verify that EL7515IYZ-T7 is sourced from the original manufacturer or authorized distributors?
All EL7515IYZ-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 EL7515IYZ-T7 meets industry standards.
7.What is the process for return or replacement of EL7515IYZ-T7?
All EL7515IYZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with EL7515IYZ-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 EL7515IYZ-T7 part is unused and in its original packaging.
Return procedure for EL7515IYZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EL7515IYZ-T7 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…
