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Renesas EL7532IYZ-T13
- Part No.:
- EL7532IYZ-T13
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7532IYZ-T13.pdf
- Description:
- IC REG BUCK ADJ 2A 10MSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
EL7532IYZ-T13 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 load, features 1.5MHz switching frequency, and includes a 100ms open-drain Power-On-Reset (POR) output. It is used in Li-Ion–powered portable instruments and FPGA/ASIC core supplies.
For engineers reviewing the EL7532IYZ-T13 datasheet, EL7532IYZ-T13 pinout, EL7532IYZ-T13 application, or EL7532IYZ-T13 equivalent, key selection criteria include its MSOP10 package footprint (<0.18 in²), <1µA shutdown current, internally compensated voltage-mode control, and thermal shutdown at +145°C.
Technical Context
The EL7532IYZ-T13 implements a fixed-frequency voltage-mode PWM controller with integrated high-side PMOS and low-side NMOS power FETs. Its internal compensation eliminates external loop components, requiring only two 10–22µF ceramic capacitors and a 1.5–2.2µH inductor for full operation.
It supports 100% duty-cycle operation for near-input-output voltage tracking, uses separate signal (SGND) and power (PGND) grounds for noise isolation, and provides POR timing synchronized to output regulation with RSI-triggered reset capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous over –40°C to +85°C ambient; supports full-rated load without derating in standard PCB layouts. |
| Input Voltage Range | 2.5V to 5.5V; compatible with single Li-Ion (2.7–4.2V), 3.3V, and 5V rails without external level-shifting. |
| Switching Frequency | 1.5MHz typical; enables compact LC filter design with ≤2.2µH inductors and avoids audible noise in portable systems. |
| Feedback Voltage | 800mV ±10mV; sets output via resistor divider (VO = 0.8V × (1 + R2/R1)), enabling precise 0.8–VIN adjustment. |
| Shutdown Current | <1µA at VIN = 5V; minimizes battery drain in always-on subsystems during deep sleep modes. |
| POR Delay | 100ms nominal after output regulation; provides reliable system reset timing for microcontrollers and FPGAs. |
| Thermal Shutdown | Activates at +145°C junction temperature with +15°C hysteresis; prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
The EL7532IYZ-T13 is housed in a RoHS-compliant, Pb-free 10-pin MSOP package (MDP0043), measuring 3.0mm × 4.9mm × 1.1mm max height, with fused leads for improved thermal resistance (θJA = 115°C/W typical).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SGND) | Signal Ground Reference | Return path for feedback, enable, and POR circuitry; must be isolated from PGND and joined at single point near FB pin. |
| 2 (PGND) | Power Ground Return | High-current return for LX switch node and output capacitor; requires large copper pour and multiple vias for thermal management. |
| 3 (LX) | Switch Node Output | Drives external inductor; carries high di/dt ripple current; must be routed short and wide to minimize EMI and voltage spikes. |
| 4 (VIN) | Main Power Input | Supplies power stage (PMOS/NMOS); requires local 10–22µF ceramic decoupling placed adjacent to VIN and PGND pins. |
| 5 (VDD) | Controller Supply | Provides bias for internal logic and gate drivers; derived from VIN but internally regulated; decoupled by same input cap. |
| 6 (RSI) | Reset Input | Active-HI asynchronous reset for POR timer; pulling low forces immediate POR assertion and restart after delay. |
| 7 (EN) | Enable Control | Logic-HI (>2.4V) enables regulation; logic-LO disables converter and reduces supply current to <1µA. |
| 8 (POR) | Open-Drain Reset Output | Asserts low for 100ms after VO reaches regulation; requires external pull-up (e.g., 100kΩ) to generate Power-Good signal. |
| 9 (VO) | Output Voltage Sense | Direct connection to output rail; used with FB to monitor regulated voltage; sensitive to layout-induced noise. |
| 10 (FB) | Feedback Input | Connects to mid-point of external resistor divider; 800mV reference sets output; trace must be short and shielded from LX and PGND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Synchronous FETs | Eliminates need for external MOSFETs and boot capacitor; PMOS high-side enables 100% duty cycle for VIN-to-VO tracking. |
| Internal Compensation | Removes requirement for external compensation network; simplifies design and improves stability across 10–22µF output capacitance range. |
| Separate SGND/PGND Pins | Reduces ground bounce and noise coupling between analog control and high-current power paths; critical for accurate feedback regulation. |
| 100ms POR with RSI Trigger | Enables deterministic system startup sequencing and software-initiated resets without additional logic or timers. |
| Thermal Protection with Hysteresis | Shuts down at +145°C and re-enables at +130°C; prevents thermal runaway while allowing safe recovery without manual intervention. |
Applications
| Portable Instrument Power | FPGA Core Supply |
|---|---|
Use Scenario: Handheld multimeters and portable oscilloscopes powered by single Li-Ion cells requiring stable 1.2V or 1.8V rails under varying load and temperature. IC Role / Device Role / Timing Role: Primary 2A step-down regulator delivering tightly regulated core voltage with fast transient response to digital load steps. Use Value: Enables compact, one-sided PCB layout with <0.18 in² footprint and eliminates need for external MOSFET drivers or compensation components. | 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: High-efficiency, internally compensated DC/DC converter providing 1.0V–1.2V at up to 2A with soft-start and POR coordination. Use Value: Delivers >94% efficiency at full load and integrates POR signaling to synchronize FPGA configuration with power rail stability. |
| Barcode Reader System Rail | Set-Top Box SoC Supply |
Use Scenario: Compact barcode scanners using ARM Cortex-M microcontrollers and laser drivers that draw pulsed 1.5A loads from 3.3V or 5V inputs. IC Role / Device Role / Timing Role: Main 1.8V or 2.5V supply with fast load-step response and low-noise regulation to prevent decoder errors during scanning bursts. Use Value: Achieves sub-1% load regulation and <100mV output deviation during 0–2A transients, ensuring consistent sensor and interface performance. | Use Scenario: Secondary 1.1V or 1.2V supply for media processor SoCs in cost-sensitive set-top boxes operating from 5V wall adapters. IC Role / Device Role / Timing Role: Efficient, low-BOM-count buck regulator with integrated FETs and POR for reliable boot sequence in consumer CE devices. Use Value: Reduces bill-of-materials by eliminating discrete MOSFETs, drivers, and compensation parts while meeting strict standby current (<1µA) requirements. |
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 | 2A synchronous buck with 3.0–5.5V input, 1.5MHz switching, but no integrated POR output or RSI reset function. | Lacks built-in 100ms POR and RSI-triggered reset; requires external supervisor IC for equivalent sequencing. | Select ISL8002 only if POR functionality is implemented externally and board area allows added components. |
| ISL8002A | Enhanced version of ISL8002 with improved light-load efficiency and tighter VFB tolerance (±0.5%), but still no POR/RSI integration. | Same POR omission as ISL8002; offers better accuracy and efficiency below 100mA but no functional replacement for EL7532IYZ-T13's reset features. | Choose ISL8002A when precision regulation and ultra-low quiescent current dominate over integrated reset timing. |
Compared with ISL8002 and ISL8002A, the EL7532IYZ-T13 uniquely integrates POR and RSI-triggered reset within the same MSOP10 package, reducing component count and PCB area-critical for space-constrained portable designs where deterministic power sequencing is required without external supervision.
Availability
EL7532IYZ-T13 is available at Aetrix Electronics and suitable for portable instrumentation, FPGA core supplies, and Li-Ion–powered consumer electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for EL7532IYZ-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 is a leading provider of power management and precision analog ICs, now part of Renesas Electronics, with expertise in high-efficiency DC/DC conversion and robust industrial-grade reliability.
The EL7532IYZ-T13 belongs to Intersil's monolithic synchronous buck regulator product line, designed specifically for space-constrained, battery-powered portable systems requiring minimal external components and deterministic power sequencing.
FAQ
What is the maximum achievable output voltage for EL7532IYZ-T13?
The EL7532IYZ-T13 supports output voltages up to VIN minus losses from inductor DCR and PMOS RDS(ON). At room temperature, with nominal 70mΩ PMOS on-resistance and typical inductor DCR, VO can reach within ~100mV of VIN. This 100% duty-cycle capability is enabled by its integrated PMOS high-side switch and is confirmed in the datasheet's Equation 1 and Applications Information section.
Does EL7532IYZ-T13 require external compensation components?
No, the EL7532IYZ-T13 features an internally compensated voltage-mode PWM controller. As stated in the datasheet, it operates stably with only two 10–22µF ceramic capacitors and a 1.5–2.2µH inductor-no external compensation network is needed. This is validated across the full operating range and eliminates tuning effort for standard applications.
How does the RSI pin function on EL7532IYZ-T13?
The RSI pin on EL7532IYZ-T13 is an active-HI asynchronous reset input for the internal POR timer. When pulled high, it forces the POR output low immediately and holds it for 100ms after RSI returns low. The output voltage remains unaffected during this event. If unused, RSI must be tied to ground per the datasheet's Pin Descriptions and Applications Information sections.
What is the thermal shutdown behavior of EL7532IYZ-T13?
The EL7532IYZ-T13 activates thermal shutdown at +145°C junction temperature (TOT,OFF), turning off both internal MOSFETs and dropping output voltage to zero. It automatically recovers when junction temperature falls to +130°C (TOT,ON), restarting regulation with soft-start. This hysteresis prevents oscillation and is specified in the Absolute Maximum Ratings and Applications Information sections of the datasheet.
Can EL7532IYZ-T13 operate from a single Li-Ion battery?
Yes, EL7532IYZ-T13 operates from 2.5V to 5.5V input, fully covering the discharge range of a single Li-Ion cell (2.7V–4.2V). Its ability to sustain 2A output down to 2.5V input and support 100% duty cycle ensures stable regulation even at end-of-discharge, as confirmed in the Input Voltage Range specification and Applications Information section.
EL7532IYZ-T13 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-T13 FAQ
1.How can I place an order for EL7532IYZ-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7532IYZ-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 EL7532IYZ-T13 reliable?
The price and inventory of EL7532IYZ-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7532IYZ-T13 is usually 5 days.
3.What payment methods are accepted for EL7532IYZ-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7532IYZ-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7532IYZ-T13?
EL7532IYZ-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7532IYZ-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 EL7532IYZ-T13?
For technical support, including EL7532IYZ-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7532IYZ-T13 requirements.
6.How does Aetrix verify that EL7532IYZ-T13 is sourced from the original manufacturer or authorized distributors?
All EL7532IYZ-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 EL7532IYZ-T13 meets industry standards.
7.What is the process for return or replacement of EL7532IYZ-T13?
All EL7532IYZ-T13 units undergo pre-shipment inspection (PSI). If there is an issue with EL7532IYZ-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 EL7532IYZ-T13 part is unused and in its original packaging.
Return procedure for EL7532IYZ-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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