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Renesas ISL8010IUZ-T7
- Part No.:
- ISL8010IUZ-T7
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL8010IUZ-T7.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,506
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Product details
Overview
ISL8010IUZ-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–5.5V input, delivers adjustable output (0.8V to VIN), features 1.4MHz nominal switching frequency, 120µA no-load quiescent current, and Power-Good (PG) open-drain output - used in Li-ion–powered portable electronics requiring compact, high-efficiency power conversion.
For engineers reviewing the ISL8010IUZ-T7 datasheet, ISL8010IUZ-T7 pinout, ISL8010IUZ-T7 application, or ISL8010IUZ-T7 equivalent, key selection considerations include its 10-lead MSOP package, hiccup-mode overcurrent/over-temperature protection, <1µA shutdown current, external synchronization up to 12MHz, and fixed internal compensation enabling minimal external component count (1 inductor, 2 ceramic capacitors).
Technical Context
The ISL8010IUZ-T7 implements a voltage-mode PWM controller with automatic PFM/PWM transition based on load current. Its internally compensated error amplifier eliminates need for external compensation components, while dual-MOSFET synchronous rectification enables up to 95% efficiency across 0–600mA load range.
Operation supports three modes: auto PFM/PWM (SYNC = GND), forced PWM (SYNC = VIN), or externally synchronized PWM (SYNC = 1.6–12MHz clock). The PG output asserts high when VFB is within ±5% of 0.8V reference, and thermal shutdown activates at +145°C with +15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 600mA continuous; peak current limit set at 1.2A for short-circuit protection |
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, 3.3V, and 5V rails without level-shifting |
| Output Voltage Range | 0.8V to VIN - adjustable via external resistor divider; feedback reference is 800mV ±10mV |
| Switching Frequency | 1.4MHz typical (1.25–1.6MHz); synchronizable up to 12MHz for EMI reduction |
| Quiescent Current | 120µA in PFM mode - enables >70% efficiency at 1mA load for battery longevity |
| Shutdown Current | <1µA - ensures negligible battery drain during system sleep or off-state |
| Thermal Range | −40°C to +85°C ambient - validated for industrial and portable operating environments |
| Package | 10-lead MSOP (MDP0043), 3.0mm × 4.9mm × 1.1mm max height - fits <0.18in² PCB footprint |
Pinout & Package
ISL8010IUZ-T7 is housed in a Pb-free, RoHS-compliant 10-lead MSOP package (MDP0043) with fused leads for improved thermal performance (θJA = 130°C/W on standard board). The package supports reflow soldering per JEDEC J-STD-020 and is rated for −40°C to +85°C operation.
| 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 vias for thermal dissipation |
| 3 LX | Switch node | Drives external inductor; average voltage equals regulated output; requires short, low-inductance trace |
| 4 VIN | Main power input | Supplies power stage (PMOS/NMOS); accepts 2.5V–5.5V; bypassed by 10µF ceramic capacitor close to pin |
| 5 VDD | Controller supply | Provides bias to internal logic and reference; decoupled separately from VIN; not tied directly to VIN |
| 6 SYNC | Mode control/synchronization | GND = auto PFM/PWM; VIN = forced PWM; external 1.6–12MHz clock = synchronized PWM |
| 7 EN | Enable input | Active-high logic input; rising threshold 2.4V, falling threshold 0.8V; <1µA shutdown current when low |
| 8 PG | Power-Good indicator | Open-drain output pulled high via external 100kΩ resistor; asserts high when VFB is within ±5% of 0.8V |
| 9 VO | Output voltage sense | Direct connection to output rail; used with FB to monitor regulation; not a feedback node itself |
| 10 FB | Feedback input | Connects to resistor divider between VO and SGND; sets output as VO = 0.8V × (1 + R1/R2) |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated controller | Eliminates external compensation network - reduces BOM count and layout sensitivity |
| Automatic PFM/PWM mode switching | Maintains >70% efficiency at 1mA load while delivering 95% peak efficiency at full 600mA |
| Hiccup-mode overcurrent protection | Limits average power dissipation during sustained overload - prevents thermal runaway without latch-off |
| Power-Good (PG) open-drain output | Enables system-level power sequencing and fault detection without additional monitoring IC |
| 10-lead MSOP package with fused leads | Reduces θJA vs standard MSOP - improves thermal margin in space-constrained portable designs |
| External synchronization up to 12MHz | Allows EMI noise spreading and clock alignment with other system clocks to reduce interference peaks |
Applications
| Li-Ion–Powered Portable Devices | Small Form Factor Modules |
|---|---|
|
Use Scenario: Power management in handheld barcode scanners with intermittent high-current decode bursts and long idle periods. IC Role / Device Role / Timing Role: Primary 1.8V/600mA step-down regulator supplying microcontroller and imaging sensor; manages light-load PFM efficiency and transient response. Use Value: 120µA quiescent current extends battery life between scans; hiccup-mode protection avoids damage during motor stall events. |
Use Scenario: Voltage regulation in SFP optical transceiver modules where board area and thermal envelope are strictly constrained. IC Role / Device Role / Timing Role: Compact 3.3V-to-2.5V converter powering laser driver and limiting amplifier; operates in forced PWM mode for predictable EMI profile. Use Value: 0.18in² total solution size enables single-side assembly; 1.1mm max height meets SFP mechanical spec; 12MHz sync capability aligns switching noise away from data lanes. |
| Portable Test Equipment | Cellular Handset Subsystems |
|
Use Scenario: Supplying analog front-end and ADC in battery-operated handheld multimeters with variable measurement loads. IC Role / Device Role / Timing Role: Adjustable-output regulator (1.2V–3.3V) delivering stable rail to precision analog circuitry; uses PG to validate regulation before measurement sampling. Use Value: 0.8V feedback reference enables accurate low-VOUT setting; ±10mV VFB tolerance ensures <±1% output accuracy across temperature. |
Use Scenario: Core power delivery to baseband processor subsystems in 2G/3G feature phones with dynamic DVFS requirements. IC Role / Device Role / Timing Role: Secondary regulator generating 1.2V core voltage from main 3.3V rail; responds to EN-controlled power sequencing during sleep/wake transitions. Use Value: Soft-start (650µs) prevents inrush-induced brownout; <1µA shutdown current meets 72-hour standby requirement; PG confirms rail stability before CPU wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL80015IRZ-T | 600mA, 2.7–5.5V input, 1.5MHz fixed frequency, 100µA IQ, 8-pin SOIC package | Larger footprint (SOIC vs MSOP); lacks SYNC pin and PG output; no PFM mode | Preferred for cost-sensitive, non-portable designs where board area and ultra-low IQ are secondary to simplicity |
| TPS62231DRVR | 600mA, 2.05–6.0V input, 3.6MHz fixed frequency, 17µA IQ, 6-pin WSON package | Higher switching frequency enables smaller inductor; lower IQ but no PFM/PWM auto-switching or PG | Suitable for space-constrained apps needing higher-frequency operation and lowest possible quiescent draw, but requires external PG monitoring |
Compared with ISL8010IUZ-T7, ISL80015IRZ-T trades compactness and advanced features (PG, SYNC, PFM) for lower cost and simpler layout, while TPS62231DRVR prioritizes miniaturization and ultra-low IQ at the expense of mode flexibility and built-in power-good signaling.
Availability
ISL8010IUZ-T7 is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and telecom module designs requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ISL8010IUZ-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) is a U.S.-based analog and power management IC designer known for high-performance, thermally robust power solutions targeting portable and industrial markets.
The ISL8010 product line was designed specifically for space-constrained, battery-operated systems requiring high efficiency across wide load ranges - emphasizing minimal external components, low quiescent current, and robust protection features.
FAQ
What is the recommended input capacitor for ISL8010IUZ-T7?
The ISL8010IUZ-T7 datasheet specifies a 10µF X5R/X7R ceramic capacitor placed as close as possible to the VIN and PGND pins. This value satisfies RMS current handling (≈0.5 × IO) and maintains stability across the 2.5V–5.5V input range. Larger values up to 22µF are acceptable but do not improve regulation; placement proximity is more critical than capacitance tolerance.
Does ISL8010IUZ-T7 support pre-biased output startup?
Yes, ISL8010IUZ-T7 supports pre-biased output startup. When EN is asserted, the device begins in PFM mode regardless of SYNC pin state, allowing safe ramp-up even if the output rail already holds residual voltage. This behavior is explicitly confirmed in the Applications Information section of FN6191 Rev 6.00, page 9.
What is the maximum allowable external synchronization frequency for ISL8010IUZ-T7?
The ISL8010IUZ-T7 supports external synchronization up to 12MHz, as stated in the Features section and Electrical Specifications table (FPWM parameter). Operation above 12MHz is not characterized or guaranteed; attempting synchronization beyond this limit may cause erratic switching or loss of regulation.
How does the Power-Good (PG) output of ISL8010IUZ-T7 behave during undervoltage conditions?
The ISL8010IUZ-T7 PG output goes low when VFB falls below 86% of the 0.8V reference (i.e., <688mV) or rises above 95% (i.e., >760mV), indicating loss of regulation. It remains low during EN deassertion, thermal shutdown, or overcurrent hiccup events. PG is an open-drain NMOS requiring an external pull-up resistor to VIN or VCC.
Can ISL8010IUZ-T7 be used with an output voltage lower than 0.8V?
No, ISL8010IUZ-T7 cannot regulate below 0.8V. Its internal feedback reference is fixed at 0.8V ±10mV, and the FB pin is designed for resistive divider configurations where VO = 0.8V × (1 + R1/R2). Attempting sub-0.8V outputs violates the minimum feedback voltage specification and results in unregulated or unstable operation.
ISL8010IUZ-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
ISL8010IUZ-T7 FAQ
1.How can I place an order for ISL8010IUZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8010IUZ-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 ISL8010IUZ-T7 reliable?
The price and inventory of ISL8010IUZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8010IUZ-T7 is usually 5 days.
3.What payment methods are accepted for ISL8010IUZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8010IUZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8010IUZ-T7?
ISL8010IUZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8010IUZ-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 ISL8010IUZ-T7?
For technical support, including ISL8010IUZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8010IUZ-T7 requirements.
6.How does Aetrix verify that ISL8010IUZ-T7 is sourced from the original manufacturer or authorized distributors?
All ISL8010IUZ-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 ISL8010IUZ-T7 meets industry standards.
7.What is the process for return or replacement of ISL8010IUZ-T7?
All ISL8010IUZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with ISL8010IUZ-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 ISL8010IUZ-T7 part is unused and in its original packaging.
Return procedure for ISL8010IUZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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