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Renesas EL7532IYZ-T7
- Part No.:
- EL7532IYZ-T7
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7532IYZ-T7.pdf
- Description:
- IC REG BUCK ADJ 2A 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,007
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Product details
Overview
EL7532IYZ-T7 from Intersil is a synchronous, integrated-FET 2A step-down DC/DC regulator with internal compensation, operating from 2.5V to 5.5V input and supporting adjustable output from 0.8V to VIN. It delivers up to 94% efficiency at 2A, features 1.5MHz PWM switching, 100ms open-drain POR output, and <1µA shutdown current-designed for compact Li-Ion–powered portable instruments and FPGA core supplies.
For engineers reviewing the EL7532IYZ-T7 datasheet, EL7532IYZ-T7 pinout, EL7532IYZ-T7 application, or EL7532IYZ-T7 equivalent, key selection criteria include its MSOP10 footprint (0.18 in² total solution), thermal shutdown threshold (145°C), feedback voltage accuracy (±10mV around 800mV), soft-start time (650µs), and compatibility with single-side PCB assembly.
Technical Context
The EL7532IYZ-T7 implements a voltage-mode PWM controller with fixed internal compensation, eliminating external loop components. Its dual-MOSFET power stage uses a PMOS high-side switch (RDS(ON) = 52–80mΩ) and NMOS low-side switch (RDS(ON) = 35–65mΩ), enabling 100% duty-cycle operation near VIN and eliminating boot capacitor requirements.
It integrates a bandgap reference, POR generator with 100ms delay (tPOR = 80–120ms), soft-start circuitry (tSS = 650µs), and over-temperature protection with 15°C hysteresis (145°C trip, 130°C recovery). The RSI pin provides asynchronous reset of the POR timer without affecting regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous across –40°C to +85°C ambient; supports full load without derating in standard PCB layouts. |
| Input Voltage Range | 2.5V to 5.5V-covers single Li-Ion (2.7–4.2V), 3.3V, and 5V rails without external LDO pre-regulation. |
| Switching Frequency | 1.5MHz typical (1.35–1.65MHz)-enables use of small 1.5–2.2µH inductors and ceramic capacitors for minimal footprint. |
| Feedback Voltage | 800mV ±10mV-sets output via resistor divider; enables precise 1.8V, 2.5V, or 3.3V generation with <0.5% load regulation error. |
| Shutdown Current | <1µA-ensures battery longevity in always-on portable systems during deep sleep modes. |
| Thermal Shutdown | 145°C junction trip with 130°C recovery-prevents permanent damage while allowing automatic restart after cooling. |
| POR Delay | 100ms nominal (80–120ms)-provides reliable system-level reset timing for microcontrollers and FPGAs after power-up. |
Pinout & Package
EL7532IYZ-T7 is housed in a Pb-free, RoHS-compliant 10-pin MSOP package (MDP0043), measuring 3.0mm × 4.9mm × 1.1mm max height, optimized for thermal performance (θJA = 115°C/W on standard board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SGND) | Signal Ground Reference | Return path for control circuitry; must be separated from PGND and joined at single point near IC to avoid noise coupling. |
| 2 (PGND) | Power Ground Return | High-current return for LX and VIN paths; requires large copper pour and multiple vias for thermal and EMI control. |
| 3 (LX) | Switch Node | Drives external inductor; carries high di/dt square wave-must be routed short and wide to minimize ringing and EMI. |
| 4 (VIN) | Power Stage Input | Supplies high-side PMOS and low-side NMOS; requires local 10–22µF ceramic decoupling directly to PGND. |
| 5 (VDD) | Controller Supply | Bias rail for internal logic and reference; derived from VIN but internally regulated-no external bypass needed. |
| 6 (RSI) | Reset Input | Active-HI asynchronous POR reset; pull to GND if unused to prevent floating-induced false triggers. |
| 7 (EN) | Enable Control | Logic-compatible enable; tied to VIN for always-on operation or driven by MCU GPIO for sequencing control. |
| 8 (POR) | Open-Drain Reset Output | 100ms-delayed active-low reset signal; requires external pull-up (e.g., 100kΩ to VO) to generate Power-Good. |
| 9 (VO) | Output Voltage Sense | Direct connection to regulated output node; used for remote sensing in high-current applications to compensate trace IR drop. |
| 10 (FB) | Voltage Feedback Input | Connects to resistor divider (R1/R2); sets output as VO = 0.8V × (1 + R2/R1); sensitive to noise-route away from LX and PGND. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated controller | Eliminates need for external compensation network-reduces BOM count and layout sensitivity while maintaining stability with 10–22µF ceramic caps. |
| Synchronous PMOS/NMOS power stage | Enables 100% duty cycle operation and removes boot capacitor requirement-simplifies design and improves efficiency near VIN. |
| 100ms POR with RSI reset | Provides deterministic system reset timing and allows external event-triggered reassertion-critical for FPGA configuration and MCU boot sequencing. |
| Separate SGND and PGND pins | Minimizes ground bounce and control-loop noise-enables clean regulation under dynamic load transients up to 2A. |
| Thermal shutdown with hysteresis | Protects against sustained overload or poor heatsinking; auto-recovery avoids manual reset-supports robust unattended operation. |
Applications
| Portable Instrumentation | FPGA Core Supply |
|---|---|
Use Scenario: Handheld multimeters and portable oscilloscopes powered by single-cell Li-Ion batteries requiring stable 1.2V or 1.8V rails under variable load. IC Role / Device Role / Timing Role: Primary step-down regulator delivering 2A at 1.8V with tight line/load regulation and low-noise output for analog front-end and ADC reference. Use Value: 94% peak efficiency extends battery life; 1.5MHz switching allows ultra-compact 1.8µH inductor and 10µF ceramic output cap-fitting full converter in <0.18 in². | Use Scenario: Core voltage supply for Xilinx Spartan or Intel Cyclone FPGAs in embedded vision systems where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Adjustable 1.0V–1.2V output regulator with fast transient response and POR signaling to coordinate FPGA configuration and logic initialization. Use Value: Internal soft-start (650µs) prevents inrush current damage; POR output ensures reliable reset assertion before configuration clock starts-eliminating startup failures. |
| Barcode Scanner Module | Set-Top Box SoC Rail |
Use Scenario: Compact barcode readers using laser diodes and CMOS image sensors requiring clean, sequenced 3.3V and 1.8V supplies from 5V USB input. IC Role / Device Role / Timing Role: Secondary 1.8V regulator enabled only after primary 3.3V rail stabilizes-controlled via EN pin and synchronized by POR signal. Use Value: <1µA shutdown current preserves standby battery life; separate SGND/PGND pins suppress motor-driver EMI from corrupting sensor bias rails. | Use Scenario: Low-power set-top box with ARM-based SoC needing efficient 1.1V core and 1.8V I/O rails from 3.3V intermediate bus. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator handling 2A peak loads during video decode bursts while maintaining <0.5% load regulation. Use Value: 145°C thermal shutdown protects against enclosure overheating; MSOP10 package allows placement directly under SoC for minimal trace inductance and optimal thermal coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL8002 | Non-synchronous rectification; 1.5MHz fixed frequency; no integrated POR; RDS(ON) higher (PMOS 120mΩ, NMOS 80mΩ). | Lacks POR output and 100% duty-cycle capability-requires external reset IC and cannot regulate close to VIN. | Choose ISL8002 only if POR is implemented elsewhere and input-to-output differential is consistently >0.5V. |
| ISL8002A | Improved version with lower RDS(ON) (PMOS 80mΩ, NMOS 55mΩ); same lack of POR and 100% duty-cycle support. | Higher efficiency than ISL8002 but still requires external reset and cannot replace EL7532IYZ-T7 in Li-Ion direct-drop applications. | Select ISL8002A when higher efficiency is critical and POR functionality is handled externally-no pin compatibility. |
Compared with ISL8002 and ISL8002A, EL7532IYZ-T7 uniquely integrates POR, supports 100% duty cycle, and offers tighter feedback tolerance (±10mV vs ±15mV), making it suitable for battery-critical and space-constrained designs where self-contained reset and VIN-near regulation are required.
Availability
EL7532IYZ-T7 is available at Aetrix Electronics and suitable for portable instrumentation, FPGA core supplies, and barcode scanner modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for EL7532IYZ-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 is a leading provider of precision analog and power management ICs, acquired by Renesas Electronics in 2017. Its products serve industrial, infrastructure, and high-end consumer markets with emphasis on reliability and integration.
The EL7532IYZ-T7 belongs to Intersil's monolithic DC/DC regulator product line, designed specifically for space-constrained, battery-powered applications demanding high efficiency, low quiescent current, and integrated system-level functions like POR and thermal protection.
FAQ
What is the maximum output current capability of the EL7532IYZ-T7 across temperature?
The EL7532IYZ-T7 delivers 2A continuous output current over the full –40°C to +85°C ambient temperature range without derating, as confirmed in the Absolute Maximum Ratings and Electrical Specifications tables of FN7435 Rev 9.00. This rating assumes proper PCB thermal design per Tech Brief TB379, including adequate copper area and via count under PGND.
Does the EL7532IYZ-T7 support 100% duty-cycle operation, and what is its practical benefit?
Yes, the EL7532IYZ-T7 supports 100% duty-cycle operation due to its PMOS high-side switch architecture, enabling output voltages approaching VIN minus resistive drops (e.g., VO ≈ VIN – IO × [rDS(ON) + RL]). This eliminates the need for a pre-regulator when powering 3.3V or 2.5V rails directly from a discharged Li-Ion cell (down to ~2.7V), extending usable battery capacity.
How is the Power-On-Reset (POR) function implemented in the EL7532IYZ-T7, and can it be disabled?
The EL7532IYZ-T7 generates a 100ms (80–120ms) active-low open-drain POR signal after output reaches regulation, referenced to the FB pin voltage. To disable POR, leave the POR pin unconnected and tie RSI to ground-this prevents POR assertion while retaining full regulation. No internal register or configuration is required.
What are the recommended external components for a typical EL7532IYZ-T7 application?
Per FN7435 Rev 9.00, the EL7532IYZ-T7 requires a 1.5–2.2µH shielded inductor (1.8µH nominal), 10–22µF X5R/X7R ceramic input/output capacitors, and a resistor divider (e.g., 124kΩ/100kΩ) for 1.8V output. A 470pF phase-lead capacitor (C4) between FB and SGND is recommended to ensure loop stability across all operating conditions.
Is the EL7532IYZ-T7 pin-compatible with ISL8002 or ISL8002A?
No, the EL7532IYZ-T7 is not pin-compatible with ISL8002 or ISL8002A. While all three are 10-pin MSOP regulators, their pin assignments differ significantly-for example, EL7532IYZ-T7 places POR on pin 8 and RSI on pin 6, whereas ISL8002 uses pin 8 for FB and pin 6 for EN. Direct replacement would require PCB redesign.
EL7532IYZ-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:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
EL7532IYZ-T7 FAQ
1.How can I place an order for EL7532IYZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7532IYZ-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 EL7532IYZ-T7 reliable?
The price and inventory of EL7532IYZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7532IYZ-T7 is usually 5 days.
3.What payment methods are accepted for EL7532IYZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7532IYZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7532IYZ-T7?
EL7532IYZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7532IYZ-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 EL7532IYZ-T7?
For technical support, including EL7532IYZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7532IYZ-T7 requirements.
6.How does Aetrix verify that EL7532IYZ-T7 is sourced from the original manufacturer or authorized distributors?
All EL7532IYZ-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 EL7532IYZ-T7 meets industry standards.
7.What is the process for return or replacement of EL7532IYZ-T7?
All EL7532IYZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with EL7532IYZ-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 EL7532IYZ-T7 part is unused and in its original packaging.
Return procedure for EL7532IYZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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