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Renesas EL7530IYZ-T7
- Part No.:
- EL7530IYZ-T7
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7530IYZ-T7.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,755
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Product details
Overview
EL7530IYZ-T7 from Intersil is a synchronous 600mA step-down DC-DC regulator with integrated PMOS/NMOS FETs, internal compensation, and automatic PFM/PWM mode control. It operates from 2.5V to 5.5V input, delivers adjustable output (0.8V to VIN), features 1.4MHz nominal switching frequency, 120µA quiescent current in PFM mode, and Power-Good open-drain output - optimized for Li-Ion–powered portable electronics.
For engineers reviewing the EL7530IYZ-T7 datasheet, EL7530IYZ-T7 pinout, EL7530IYZ-T7 application, or EL7530IYZ-T7 equivalent, key selection criteria include its MSOP-10 footprint (<0.18in² total solution), <1µA shutdown current, ±1% feedback reference accuracy, thermal/overcurrent protection, and external synchronization capability up to 12MHz.
Technical Context
The EL7530IYZ-T7 implements a voltage-mode synchronous buck controller with fixed internal compensation, supporting both auto PFM/PWM and forced PWM operation. Its dual ground pins (SGND and PGND) isolate signal and power return paths, while the dedicated LX pin drives the external inductor with average voltage equal to VO.
Control logic includes soft-start (650µs), programmable enable threshold (2.2V to 2.4V), and precise Power-Good monitoring (±5% VFB window). The IC integrates 70mΩ PMOS and 45mΩ NMOS high-side/low-side switches, enabling >95% peak efficiency at 600mA with 1.8µH inductor and ceramic capacitors.
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 or I/O rails in handheld devices; peak current limit at 1.2A. |
| Switching Frequency | 1.4MHz typical (1.25–1.6MHz) - enables compact 1.8µH inductor and low-profile ceramic capacitors. |
| Quiescent Current | 120µA in PFM mode - extends battery life in standby; drops to <1µA in shutdown. |
| Feedback Reference | 800mV ±10mV - sets output via resistor divider; enables precise 1.0V–3.3V adjustable regulation. |
| Efficiency | Up to 95% at 600mA - achieved with synchronous rectification and low RDS(ON) FETs (70mΩ/45mΩ). |
| Thermal Protection | 145°C trip / 130°C hysteresis - prevents damage during sustained overload or poor PCB thermal design. |
Pinout & Package
EL7530IYZ-T7 is housed in a RoHS-compliant, Pb-free 10-lead MSOP package (MDP0043), 3.0mm × 4.9mm × 1.1mm, rated for –40°C to +85°C ambient operation. Thermal resistance θJA is 115°C/W on high-conductivity board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SGND | Signal Ground | Reference for control circuitry; must be isolated from PGND and connected at single point near FB/EN. |
| 2 PGND | Power Ground | Return path for high-current LX switching node; requires large copper pour and multiple vias for thermal relief. |
| 3 LX | Switch Node | Drives external inductor; carries pulsed current up to 1.2A; critical for EMI and layout integrity. |
| 4 VIN | Power Stage Input | Supplies NMOS/PMOS FETs; requires local 10µF ceramic capacitor placed adjacent to VIN and PGND. |
| 5 VDD | Controller Supply | Bias rail for internal logic; decoupled internally; not externally accessible for bypassing. |
| 6 SYNC | Mode Control / Sync Input | GND = auto PFM/PWM; VIN = forced PWM; external 1.6–12MHz clock = synchronized PWM. |
| 7 EN | Enable Input | Active-high; 2.4V turn-on threshold; <1µA shutdown current when pulled low. |
| 8 PG | Power-Good Output | Open-drain flag indicating VO within ±5% of target; requires external 100kΩ pull-up to VIN or VCC. |
| 9 VO | Output Sense | Direct connection to regulated output; used for remote sensing in high-accuracy applications. |
| 10 FB | Feedback Input | Monitors resistive divider (R1/R2); 800mV reference sets VO = 0.8V × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Synchronous FETs | Eliminates need for external MOSFETs and gate drivers; reduces BOM count and layout complexity. |
| Auto PFM/PWM Transition | Maintains >70% efficiency at 1mA load (PFM) and >90% at 600mA (PWM), optimizing battery runtime across operating conditions. |
| Internal Compensation | Enables stable operation with standard 1.5–2.2µH inductors and 10–22µF ceramic capacitors-no external compensation network required. |
| 10-Lead MSOP Package | 0.5mm pitch, 1.1mm max height, and fused-lead construction deliver superior thermal performance vs. standard MSOP. |
| Robust Protection Suite | Includes overcurrent limiting (1.2A), overtemperature shutdown (145°C), short-circuit recovery, and undervoltage lockout (2.2V startup). |
Applications
| Bar Code Readers | Portable Test Equipment |
|---|---|
Use Scenario: Compact handheld scanners requiring regulated 1.8V or 3.3V supply from single Li-Ion cell. IC Role / Device Role / Timing Role: Primary step-down regulator delivering stable core voltage to microcontroller and image sensor. Use Value: 120µA quiescent current extends battery life between scans; 1.4MHz switching minimizes inductor size for tight form factor. | Use Scenario: Battery-powered multimeters and signal analyzers needing low-noise, efficient power conversion. IC Role / Device Role / Timing Role: Main DC-DC converter supplying analog front-end and digital processing subsystems. Use Value: Internal compensation and fixed-frequency PWM reduce layout sensitivity; PG output enables system-level power sequencing. |
| Cellular Phones (Legacy) | Small Form Factor (SFP) Modules |
Use Scenario: Feature phone baseband and RF power management where space and efficiency are constrained. IC Role / Device Role / Timing Role: Secondary regulator generating processor I/O voltage from main 3.3V rail. Use Value: MSOP-10 footprint occupies <0.18in² PCB area; <1µA shutdown current meets deep-sleep requirements. | Use Scenario: Optical transceivers in telecom infrastructure requiring reliable, low-profile power for laser drivers and TIA. IC Role / Device Role / Timing Role: Point-of-load regulator converting 3.3V backplane to 2.5V or 1.8V for analog circuitry. Use Value: Synchronization up to 12MHz allows EMI reduction by aligning switching noise with system clock domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL9106IRZ-T7 | Lower IQ (25µA), 400mA output, different pinout (8-pin WDFN), no PG output. | Targeted at ultra-low-power wearables; lacks Power-Good and sync capability. | Select ISL9106IRZ-T7 only if 400mA output suffices and PG/sync are unnecessary. |
| TPS62231DRYR | 3MHz fixed-frequency, 600mA, 17µA IQ, integrated PG, but requires external compensation. | Better suited for noise-sensitive RF sections due to higher switching frequency and lower IQ. | Choose TPS62231DRYR when EMI filtering is critical and layout allows compensation component placement. |
Compared with EL7530IYZ-T7, ISL9106IRZ-T7 offers lower quiescent current but reduced output capability and missing PG/sync functions; TPS62231DRYR provides higher frequency and lower IQ but demands external compensation components and has different thermal characteristics.
Availability
EL7530IYZ-T7 is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered communications modules, and embedded microcontroller power supplies requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for EL7530IYZ-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) designs high-performance analog and power management ICs for industrial, computing, and communications markets.
The EL7530 product line targets space-constrained, battery-operated systems requiring high-efficiency, low-quiescent-current DC-DC conversion with minimal external components.
FAQ
What is the recommended inductor value for EL7530IYZ-T7 in a standard 1.8V @ 600mA application?
The EL7530IYZ-T7 datasheet specifies a 1.8µH inductor for the 1.8V @ 600mA typical application. This value balances ripple current, efficiency, and transient response. Inductor selection must support ≥2A surge current under fault conditions and use X5R/X7R ceramic capacitors (10–22µF) for input/output filtering. The EL7530IYZ-T7's internal compensation is optimized for 1.5–2.2µH range.
Does EL7530IYZ-T7 support true power sequencing via its Power-Good (PG) output?
Yes, EL7530IYZ-T7 provides an open-drain Power-Good output (Pin 8) that asserts high when output voltage is within ±5% of the target setpoint, EN is high, and no fault is detected. It requires an external 100kΩ pull-up to VIN or VCC and can drive downstream enable inputs or microcontroller GPIOs for coordinated power sequencing in multi-rail systems using EL7530IYZ-T7.
Can EL7530IYZ-T7 operate with a pre-biased output during start-up?
Yes, EL7530IYZ-T7 supports pre-biased start-up: in Forced PWM mode, it begins switching from PFM to ensure safe ramp-up even when VO is initially non-zero. This 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 using EL7530IYZ-T7.
What is the maximum allowable ambient temperature for continuous 600mA operation of EL7530IYZ-T7?
EL7530IYZ-T7 is rated for –40°C to +85°C ambient operation. At full 600mA load, thermal limits depend on PCB layout: with JEDEC JESD51-7 high-conductivity board, power dissipation reaches ~486mW at 85°C ambient. To sustain 600mA continuously, ensure ≥4-layer board, ample PGND copper, and thermal vias under the MSOP-10 package per EL7530IYZ-T7 layout guidelines.
How does the SYNC pin function in EL7530IYZ-T7, and what are its valid voltage thresholds?
The SYNC pin (Pin 6) of EL7530IYZ-T7 controls operating mode: grounded → auto PFM/PWM; pulled to VIN (>2.5V) → forced PWM; driven by external 1.6–12MHz clock → synchronized PWM. Rising/falling thresholds are 2.4V and 0.8V respectively at VDD = 3.3V. This flexibility allows EMI reduction, deterministic timing, or ultra-low-IQ light-load operation - all configurable without changing EL7530IYZ-T7 hardware.
EL7530IYZ-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-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:
- 600mA
- Frequency - Switching:
- 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
EL7530IYZ-T7 FAQ
1.How can I place an order for EL7530IYZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7530IYZ-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 EL7530IYZ-T7 reliable?
The price and inventory of EL7530IYZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7530IYZ-T7 is usually 5 days.
3.What payment methods are accepted for EL7530IYZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7530IYZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7530IYZ-T7?
EL7530IYZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7530IYZ-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 EL7530IYZ-T7?
For technical support, including EL7530IYZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7530IYZ-T7 requirements.
6.How does Aetrix verify that EL7530IYZ-T7 is sourced from the original manufacturer or authorized distributors?
All EL7530IYZ-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 EL7530IYZ-T7 meets industry standards.
7.What is the process for return or replacement of EL7530IYZ-T7?
All EL7530IYZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with EL7530IYZ-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 EL7530IYZ-T7 part is unused and in its original packaging.
Return procedure for EL7530IYZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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