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Renesas EL7530IYZ-T13S2695
- Part No.:
- EL7530IYZ-T13S2695
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- Renesas
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EL7530IYZ-T13S2695.pdf
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Product details
Overview
EL7530IYZ-T13S2695 from Intersil is a synchronous, integrated-FET 600mA step-down DC/DC regulator with internal compensation, operating from 2.5V to 5.5V input and supporting adjustable output voltages from 0.8V to VIN. It delivers up to 95% efficiency, features automatic PFM/PWM mode control, and includes Power-Good (PG) monitoring-ideal for Li-Ion–powered portable electronics requiring compact, low-quiescent-current power conversion.
For engineers reviewing the EL7530IYZ-T13S2695 datasheet, EL7530IYZ-T13S2695 pinout, EL7530IYZ-T13S2695 application, or EL7530IYZ-T13S2695 equivalent, key selection considerations include its 1.4MHz nominal PWM frequency (synchronizable up to 12MHz), 120µA no-load quiescent current, <1µA shutdown current, thermal and short-circuit protection, and MSOP-10 package footprint under 0.18in².
Technical Context
The EL7530IYZ-T13S2695 implements a voltage-mode synchronous buck controller with fixed internal compensation, enabling stable operation with 1.5µH–2.2µH inductors and 10µF–22µF ceramic capacitors. Its dual-mode operation-PFM at light load (>70% efficiency at 1mA) and forced or synchronized PWM at higher loads-optimizes efficiency across dynamic load profiles.
Control logic integrates soft-start (650µs), overtemperature shutdown (145°C trip, 130°C hysteresis), and current limiting (1.2A peak). The PG open-drain output asserts high when VFB is within ±5% of 800mV and EN is active, providing system-level power sequencing feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-Ion, 3.3V, and 5V rails without external LDO pre-regulation. |
| Output Current | 600mA continuous - sufficient for core logic, RF modules, or sensor subsystems in space-constrained devices. |
| Switching Frequency | 1.4MHz typical, synchronizable to 12MHz - enables small external magnetics and EMI filtering while maintaining layout simplicity. |
| Quiescent Current | 120µA in PFM mode - extends battery runtime in always-on or low-duty-cycle portable applications. |
| Shutdown Current | <1µA - ensures negligible drain during system sleep or standby states. |
| Feedback Voltage | 800mV ±10mV - sets precise output regulation via external resistor divider; enables 0.8V–VIN programmability. |
| Efficiency | Up to 95% - reduces thermal load and improves power density in thermally limited enclosures. |
Pinout & Package
The EL7530IYZ-T13S2695 is housed in a RoHS-compliant, Pb-free 10-lead MSOP package (MDP0043), with 0.5mm pitch, 3.0mm × 4.9mm body, and 1.1mm max height-optimized for one-side PCB assembly and minimal board area (<0.18in² total converter footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SGND) | Signal Ground Reference | Return path for controller-stage circuitry; must be separated from PGND and joined at single point near IC. |
| 2 (PGND) | Power Ground Reference | Return path for high-current power stage (LX, VIN); requires large copper pour and multiple vias for thermal relief. |
| 3 (LX) | Switch Node Output | Drives external inductor; carries high di/dt switching current-requires short, wide trace to minimize EMI and voltage spikes. |
| 4 (VIN) | Main Power Input | Supplies power stage (PMOS/NMOS FETs); must be decoupled with 10µF ceramic capacitor placed adjacent to pin. |
| 5 (VDD) | Controller Supply | Provides bias to internal logic and reference; derived from VIN but internally regulated-decoupling critical for stability. |
| 6 (SYNC) | Mode Control & Sync Input | Ground = auto PFM/PWM; VIN = forced PWM; external clock (1.6–12MHz) = synchronized PWM for EMI reduction. |
| 7 (EN) | Enable Input | Active-high logic input; rising threshold 2.4V, falling threshold 0.8V; enables soft-start and full shutdown (<1µA IQ). |
| 8 (PG) | Power-Good Open-Drain | Asserts high when output is within ±5% regulation and EN is active; requires external 100kΩ pull-up to VIN or VCC. |
| 9 (VO) | Output Voltage Sense | Direct connection to output rail; used with FB to monitor regulated voltage-minimizes trace impedance effects. |
| 10 (FB) | Voltage Feedback Input | Accepts resistive divider (R1/R2) to set output; 800mV reference enables precise 0.8V–VIN adjustment with low input bias (100nA). |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated control loop | Eliminates need for external compensation components-reduces BOM count and design iteration time for standard 1.5–2.2µH inductors and 10–22µF ceramics. |
| Automatic PFM/PWM transition | Maintains >70% efficiency at 1mA load while scaling seamlessly to 600mA continuous, avoiding manual mode selection or firmware intervention. |
| 10-lead MSOP package (Pb-free) | Enables ultra-compact, one-side assembly with 0.18in² total converter footprint-critical for PDA, barcode scanners, and SFP modules. |
| Integrated protection suite | Combines 1.2A current limit, overtemperature shutdown (145°C/130°C hysteresis), and <1µA shutdown-reduces need for external fault management circuitry. |
| Power-Good (PG) output | Provides system-level power sequencing confirmation with ±5% accuracy-enables reliable microcontroller reset and peripheral enable timing. |
Applications
| Portable Medical Sensors | Barcode Scanners |
|---|---|
Use Scenario: Compact, battery-powered glucose meters or pulse oximeters requiring stable 1.8V or 3.3V rails from single Li-Ion cells. IC Role / Device Role / Timing Role: Primary step-down regulator delivering regulated output to MCU, analog front-end, and display driver. Use Value: 120µA quiescent current extends battery life between measurements; PFM mode maintains efficiency during intermittent sensor sampling. | Use Scenario: Handheld laser barcode readers needing efficient 3.3V supply for CMOS image sensor and decode ASIC under variable load. IC Role / Device Role / Timing Role: Core power converter managing transient-heavy loads during scan bursts and idle periods. Use Value: 1.4MHz switching frequency enables small 1.8µH inductor; automatic PFM→PWM transition handles 0–600mA load swings without output droop. |
| Li-Ion–Powered PDAs | SFP Transceiver Modules |
Use Scenario: Legacy PDA platforms using 3.3V or 1.8V rails for ARM processors, NAND flash, and touchscreen controllers. IC Role / Device Role / Timing Role: Main system regulator supplying multiple voltage domains via discrete LDOs downstream. Use Value: MSOP-10 package fits tight board real estate; <1µA shutdown current prevents battery drain during long-term storage. | Use Scenario: Small-form-factor pluggable optical modules requiring tightly regulated 3.3V for laser driver and receiver ICs in telecom infrastructure. IC Role / Device Role / Timing Role: Point-of-load regulator ensuring stable supply despite high-frequency signal noise on shared backplane rails. Use Value: 12MHz synchronization capability allows alignment with system clock to suppress conducted EMI in dense line-card layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL9106 | Lower 300mA output current; 2.5–5.5V input; 3MHz fixed-frequency PWM only; no PFM mode or SYNC input. | Targeted at ultra-low-power microcontrollers-not suitable for 600mA loads or EMI-sensitive sync-critical systems. | Select ISL9106 only if load current ≤300mA and fixed-frequency operation suffices; not a drop-in replacement. |
| TPS62231DRYT | 600mA output; 2.05–6.5V input; 3.6MHz PWM; 17µA quiescent current; no PFM mode; integrated soft-start and PG. | Better suited for higher-input-voltage industrial sensors; lacks PFM efficiency at light load and external sync capability. | Choose TPS62231DRYT for wider VIN range and lower IQ, but verify absence of PFM does not impact battery runtime in intermittent-use devices. |
Compared with ISL9106 and TPS62231DRYT, the EL7530IYZ-T13S2695 uniquely balances 600mA capability, PFM/PWM adaptability, 12MHz synchronization, and ultra-low shutdown current-making it optimal for compact, battery-sensitive portable systems where dynamic efficiency and EMI control are co-prioritized.
Availability
EL7530IYZ-T13S2695 is available at Aetrix Electronics and suitable for portable medical sensors, barcode scanners, Li-Ion–powered PDAs, and SFP transceiver modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for EL7530IYZ-T13S2695 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, emphasizing precision, efficiency, and reliability in power conversion and signal conditioning.
The EL7530 product line targets space-constrained, battery-operated portable electronics-delivering integrated-FET buck regulation with minimal external components, low quiescent current, and robust protection for consumer and industrial handheld devices.
FAQ
What is the recommended inductor value for EL7530IYZ-T13S2695 in a typical 1.8V@600mA application?
The EL7530IYZ-T13S2695 datasheet specifies a 1.8µH inductor for the 1.8V @ 600mA reference design. This value is optimized for 1.4MHz operation, peak-to-peak ripple current control, and thermal performance. Inductors between 1.5µH and 2.2µH are acceptable per the internal compensation design, but deviating outside this range may compromise stability or efficiency. Always verify saturation current rating exceeds 2A for surge conditions.
Does EL7530IYZ-T13S2695 support pre-biased output startup?
Yes, the EL7530IYZ-T13S2695 supports pre-biased output startup. During forced PWM mode initiation, the device begins in PFM mode regardless of EN assertion, allowing safe ramp-up even when the output rail is already partially charged. This behavior prevents reverse current flow into the output capacitor and avoids potential damage to downstream circuitry-a critical feature for hot-swap or multi-rail systems.
How is the Power-Good (PG) output of EL7530IYZ-T13S2695 configured and what tolerance does it monitor?
The PG pin of EL7530IYZ-T13S2695 is an open-drain output requiring an external 100kΩ pull-up to VIN or VCC. It asserts high when the feedback voltage (VFB) is within ±5% of the 800mV internal reference-corresponding to ±5% output regulation-and EN is active. PG goes low during startup, shutdown, overtemperature, or output undervoltage conditions, providing unambiguous system power sequencing feedback.
Can EL7530IYZ-T13S2695 be synchronized to a 10MHz external clock, and what is the minimum SYNC pulse width?
Yes, EL7530IYZ-T13S2695 supports external synchronization from 1.6MHz to 12MHz, including 10MHz. The SYNC pin accepts TTL/CMOS-compatible signals, and the minimum guaranteed pulse width is 25ns. For reliable locking, ensure the external clock has clean edges and low jitter; the device will automatically align its PWM phase to the incoming SYNC edge without additional configuration.
What thermal derating guidance applies to EL7530IYZ-T13S2695 in a 2-layer PCB layout?
In a 2-layer PCB layout, the EL7530IYZ-T13S2695 exhibits θJA ≈ 125°C/W per manufacturer data. At 85°C ambient and 600mA load, power dissipation reaches ~486mW (based on 95% efficiency at 3.3V→1.8V), resulting in ~61°C junction rise-well below the 125°C absolute max. To maintain margin, maximize copper area around PGND, use ≥4 thermal vias under the exposed pad (if present), and avoid enclosing the IC in tight thermal pockets.
EL7530IYZ-T13S2695 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
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- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
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- -
- Supplier Device Package:
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EL7530IYZ-T13S2695 FAQ
1.How can I place an order for EL7530IYZ-T13S2695 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7530IYZ-T13S2695 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 EL7530IYZ-T13S2695 reliable?
The price and inventory of EL7530IYZ-T13S2695 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7530IYZ-T13S2695 is usually 5 days.
3.What payment methods are accepted for EL7530IYZ-T13S2695?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7530IYZ-T13S2695 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7530IYZ-T13S2695?
EL7530IYZ-T13S2695 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7530IYZ-T13S2695 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 EL7530IYZ-T13S2695?
For technical support, including EL7530IYZ-T13S2695 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7530IYZ-T13S2695 requirements.
6.How does Aetrix verify that EL7530IYZ-T13S2695 is sourced from the original manufacturer or authorized distributors?
All EL7530IYZ-T13S2695 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 EL7530IYZ-T13S2695 meets industry standards.
7.What is the process for return or replacement of EL7530IYZ-T13S2695?
All EL7530IYZ-T13S2695 units undergo pre-shipment inspection (PSI). If there is an issue with EL7530IYZ-T13S2695, 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 EL7530IYZ-T13S2695 part is unused and in its original packaging.
Return procedure for EL7530IYZ-T13S2695:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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