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Renesas EL7530IYZ-T13
- Part No.:
- EL7530IYZ-T13
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EL7530IYZ-T13.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,469
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Product details
Overview
EL7530IYZ-T13 from Intersil is a synchronous 600mA step-down DC/DC regulator with integrated PMOS/NMOS FETs, internal compensation, and automatic PFM/PWM mode switching. It operates from 2.5V to 5.5V input, delivers adjustable output (0.8V to VIN), and features 1.4MHz nominal PWM frequency, 120µA no-load quiescent current, and Power-Good output - ideal for Li-ion–powered portable instrumentation.
For engineers reviewing the EL7530IYZ-T13 datasheet, EL7530IYZ-T13 pinout, EL7530IYZ-T13 application, or EL7530IYZ-T13 equivalent, key selection criteria include its MSOP-10 footprint (<0.18 in²), 95% peak efficiency, <1µA shutdown current, thermal/overcurrent protection, and external synchronization up to 12MHz for EMI-sensitive designs.
Technical Context
The EL7530IYZ-T13 implements a voltage-mode synchronous buck controller with fixed internal compensation and dual-mode operation: PFM at light loads (≥70% efficiency at 1mA) and forced or synchronized PWM at higher loads. Its architecture integrates both high-side PMOS (70mΩ typical RDS(ON)) and low-side NMOS (45mΩ typical) switches on-die.
Control logic includes soft-start (650µs), overtemperature shutdown (145°C trip, 130°C hysteresis), and a dedicated open-drain Power-Good output that asserts when VFB reaches 95% of target. The SYNC pin enables three modes: auto PFM/PWM (SYNC = GND), forced PWM (SYNC = VIN), or external clock sync (1.6–12MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 600mA continuous; supports 800mA peak for transient loads without derating. |
| Input Voltage Range | 2.5V to 5.5V - directly compatible with single-cell Li-ion (2.7–4.2V), 3.3V, and 5V rails. |
| Quiescent Current | 120µA in PFM mode - enables >1-year battery life in always-on sensor nodes. |
| Switching Frequency | 1.4MHz typical PWM; externally synchronizable up to 12MHz to avoid sensitive IF bands. |
| Feedback Voltage | 800mV ±10mV - sets output via resistor divider; enables precise 1.2V, 1.8V, 3.3V, or custom regulation. |
| Efficiency | Up to 95% at 600mA - reduces thermal load in space-constrained SFP modules and handheld devices. |
| Shutdown Current | <1µA - ensures zero-load battery drain during system sleep states. |
| Operating Temp | −40°C to +85°C ambient - qualified for industrial and automotive cabin applications. |
Pinout & Package
The EL7530IYZ-T13 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 operation. Thermal resistance θJA is 115°C/W on a high-conductivity 4-layer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SGND | Signal ground reference | Return for control circuitry; must be isolated from PGND and joined at single point near IC. |
| 2 PGND | Power ground return | High-current return path for LX switch node; requires large copper pour and multiple vias. |
| 3 LX | Switch node output | Drives external inductor; carries full AC ripple current - trace must be short and wide. |
| 4 VIN | Main power input | Supplies power stage (PMOS/NMOS); requires local 10µF ceramic capacitor placed adjacent to pin. |
| 5 VDD | Controller supply | Provides bias to internal logic; decoupled separately from VIN to reduce noise coupling. |
| 6 SYNC | Mode control/sync input | Pull to GND for auto PFM/PWM; pull to VIN for forced PWM; drive with 1.6–12MHz clock for EMI reduction. |
| 7 EN | Enable input | Active-high logic input; rising threshold 2.4V, falling threshold 0.8V - supports direct MCU GPIO control. |
| 8 PG | Power-Good open-drain | Asserts high (via external 100kΩ pull-up) when VFB ≥ 95% of target; used for sequencing or fault monitoring. |
| 9 VO | Output voltage sense | Direct connection to regulated output; used with FB to monitor actual rail voltage under load. |
| 10 FB | Voltage feedback input | Connects to resistor divider (R1/R2) between VO and SGND; 800mV reference sets output as 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 down to 1mA load while delivering 95% at full 600mA - optimal for burst-mode IoT sensors. |
| Internal compensation | Enables stable operation with only three external components (1.8µH inductor, two 10µF ceramics) - accelerates design cycle. |
| Power-Good monitoring | Provides system-level fault detection and power sequencing capability without external comparators or supervisors. |
| Thermal & current protection | 145°C overtemperature shutdown with 15°C hysteresis and 1.2A current limit - prevents damage during short-circuit events. |
| Pb-free MSOP-10 package | RoHS-compliant, 1.1mm profile - suitable for ultra-thin portable devices and high-density SFP+ modules. |
Applications
| Portable Test Equipment | Li-Ion–Powered Handhelds |
|---|---|
Use Scenario: Battery-operated multimeter with LCD display and analog front-end requiring clean, low-noise 3.3V and 1.8V rails. IC Role / Device Role / Timing Role: Primary step-down regulator supplying microcontroller core and ADC reference voltage. Use Value: 120µA quiescent current extends battery life; PFM mode maintains efficiency during standby measurements. |
Use Scenario: Barcode scanner with laser diode driver and Bluetooth radio operating from single Li-ion cell. IC Role / Device Role / Timing Role: Main DC/DC converter generating 3.3V system rail and 1.2V core voltage for ARM Cortex-M processor. Use Value: 95% efficiency minimizes heat in sealed plastic housing; 12MHz sync capability avoids interference with 2.4GHz RF band. |
| SFP Transceiver Modules | PDA & Pocket PC Systems |
Use Scenario: Small Form Factor pluggable optical module requiring compact, low-profile power solution for laser driver and DSP. IC Role / Device Role / Timing Role: Space-constrained buck regulator delivering 3.3V at 600mA with minimal PCB area. Use Value: MSOP-10 footprint occupies <0.18 in² - fits within tight SFP mechanical envelope; 1.1mm height avoids connector interference. |
Use Scenario: Legacy PDA with QVGA touchscreen, SD card interface, and GPS receiver powered by removable Li-ion battery. IC Role / Device Role / Timing Role: System power manager converting battery voltage to stable 1.8V memory rail and 2.8V I/O rail. Use Value: Dual-mode operation adapts to dynamic load profiles (e.g., GPS acquisition vs. idle screen); PG output enables safe boot sequencing. |
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 300mA output rating; 2.5–5.5V input; 3MHz fixed-frequency PWM only; no PFM mode or PG output. | Lacks auto PFM/PWM and Power-Good - unsuitable for battery-life–critical or sequenced systems. | Consider only for cost-sensitive, low-current applications where efficiency at light load is not required. |
| TPS62231DRYR | 600mA output; 2.05–6.5V input; 3.6MHz fixed PWM; 17µA quiescent current; no PFM mode; no PG output. | Higher switching frequency enables smaller inductors but lacks light-load efficiency optimization and fault monitoring. | Prefer when board space is extremely limited and constant load dominates; avoid when battery runtime or system safety is primary. |
Compared with EL7530IYZ-T13, ISL9106IRZ-T7 trades off light-load efficiency and system monitoring for lower cost and smaller size, while TPS62231DRYR prioritizes miniaturization and medium-load efficiency at the expense of adaptive operation and power-good signaling.
Availability
EL7530IYZ-T13 is available at Aetrix Electronics and suitable for portable test equipment, Li-ion–powered handhelds, SFP transceivers, and PDA systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for EL7530IYZ-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 (now part of Renesas Electronics) is a U.S.-based analog and power management IC designer known for high-performance DC/DC regulators, precision amplifiers, and interface solutions.
The EL7530 product line was engineered for space-constrained, battery-powered portable electronics requiring high efficiency across wide load ranges - emphasizing integration, thermal robustness, and ease of use in single-sided PCB layouts.
FAQ
What is the maximum output current capability of the EL7530IYZ-T13?
The EL7530IYZ-T13 delivers 600mA continuously under full-spec conditions (TA = 85°C, proper layout). Its peak current limit is 1.2A, allowing brief surge handling during startup or load transients. Derating is required above 85°C ambient; thermal performance depends heavily on PCB copper area and via count under the PGND pad.
Does the EL7530IYZ-T13 support external synchronization, and what is the valid frequency range?
Yes, the EL7530IYZ-T13 supports external synchronization via the SYNC pin across 1.6MHz to 12MHz. This allows EMI reduction by aligning switching noise away from sensitive receiver bands. The minimum pulse width is 25ns, and the input accepts standard CMOS logic levels referenced to VDD.
How does the Power-Good (PG) output of the EL7530IYZ-T13 function, and what external component is required?
The EL7530IYZ-T13 PG pin is an open-drain NMOS that pulls low when VFB falls below 86% of target or during fault conditions. To assert high, it requires an external pull-up resistor (typically 100kΩ) to VIN or VCC. PG goes high only after soft-start completes and VFB stabilizes within ±5% of regulation.
Can the EL7530IYZ-T13 operate with a pre-biased output, and how does enable/shutdown behave?
Yes, the EL7530IYZ-T13 supports pre-biased outputs: it starts in PFM mode regardless of SYNC state to avoid reverse current. When EN is pulled low, the device enters shutdown with <1µA total input current and both FETs fully off. Re-enabling triggers full soft-start (650µs ramp), ensuring controlled inrush.
What are the recommended external components for the EL7530IYZ-T13 in a typical 1.8V @ 600mA application?
For 1.8V output at 600mA, use a 1.8µH shielded inductor (2A saturation current), 10µF X5R/X7R ceramic input capacitor (placed adjacent to VIN/PGND), 10µF X5R/X7R ceramic output capacitor, and a phase-lead capacitor C4 = 470pF (per datasheet Figure 1). Feedback resistors: R1 = 124kΩ, R2 = 100kΩ.
EL7530IYZ-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:
- 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-T13 FAQ
1.How can I place an order for EL7530IYZ-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7530IYZ-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 EL7530IYZ-T13 reliable?
The price and inventory of EL7530IYZ-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7530IYZ-T13 is usually 5 days.
3.What payment methods are accepted for EL7530IYZ-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7530IYZ-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7530IYZ-T13?
EL7530IYZ-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7530IYZ-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 EL7530IYZ-T13?
For technical support, including EL7530IYZ-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7530IYZ-T13 requirements.
6.How does Aetrix verify that EL7530IYZ-T13 is sourced from the original manufacturer or authorized distributors?
All EL7530IYZ-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 EL7530IYZ-T13 meets industry standards.
7.What is the process for return or replacement of EL7530IYZ-T13?
All EL7530IYZ-T13 units undergo pre-shipment inspection (PSI). If there is an issue with EL7530IYZ-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 EL7530IYZ-T13 part is unused and in its original packaging.
Return procedure for EL7530IYZ-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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