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Renesas ISL97701IRZ-T13
- Part No.:
- ISL97701IRZ-T13
- Manufacturer:
- Renesas
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ISL97701IRZ-T13.pdf
- Description:
- IC REG BOOST ADJ 1.2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,129
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Product details
Overview
ISL97701IRZ-T13 from Intersil is a high-efficiency boost regulator IC with integrated 500mA boost FET, Schottky diode, and input disconnect FET. It operates from 2.3V–5.5V input to deliver up to 50mA at 18V output, achieves 87% peak efficiency, and features active fault protection including overvoltage, overcurrent, and thermal shutdown. It is used in OLED display power supplies where low quiescent current and zero-output-current disable mode are critical.
For engineers reviewing the ISL97701IRZ-T13 datasheet, ISL97701IRZ-T13 pinout, ISL97701IRZ-T13 application, or ISL97701IRZ-T13 equivalent, key selection criteria include its 1MHz internal oscillator, 10-lead 3×3 DFN package, integrated input disconnect switch (rON = 0.2Ω), soft-start sequence, and synchronization capability via NSYNC pin for EMI-sensitive designs.
Technical Context
The ISL97701IRZ-T13 implements a constant-frequency PWM boost topology with fixed 1MHz internal oscillator or external sync (600kHz–1.4MHz) via NSYNC. Its six-stage start-up sequence-Soft Inrush, VDDOUT Enable, Soft Boost 25/50/75, then Normal-limits inrush current and controls LX peak current ramp-up to 1200mA final limit.
Fault protection is hardware-based and autonomous: overvoltage at VOUT (>31V) disables LX and VDDOUT; overcurrent at VDDOUT (>800mA) triggers restart; junction temperature >135°C halts switching until cooling to 100°C. The integrated Schottky diode (VF = 0.4–0.6V @ 10mA) and low-rON (0.4Ω) LX switch enable high efficiency across 2.3–5.5V input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion and Li-poly battery operation without pre-regulation. |
| Output Capability | 50mA at 18V - sufficient for biasing PMOLED/AMOLED display anodes in handheld devices. |
| Peak Efficiency | 87% - minimizes thermal load and extends battery life in portable applications. |
| Switching Frequency | 1MHz (internal) or 600kHz–1.4MHz (external sync) - enables compact magnetics and EMI control. |
| VDDOUT Disconnect rON | 0.2Ω - ensures near-zero leakage into load when disabled, eliminating battery drain. |
| FB Reference Voltage | 1.15V ±2.5% (–40°C to +85°C) - sets output voltage accuracy with standard resistor divider networks. |
| LX Peak Current Limit | 1200mA - defines maximum inductor energy transfer and short-circuit robustness. |
Pinout & Package
ISL97701IRZ-T13 is housed in a 10-lead 3×3 mm DFN package (MDP0047) with exposed thermal pad for enhanced thermal dissipation. The package is RoHS-compliant, Pb-free, and rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 GND | Power and signal ground reference | Common return path for VDD, VDDOUT, LX, and FB; connects to thermal pad for heat sinking. |
| 2 VDDOUT | Input disconnect switch output | Connects inductor to VDD only when enabled; isolates input during fault or shutdown. |
| 3 VDD | Main supply input | Accepts 2.3V–5.5V battery or rail; powers internal circuitry and gate drivers. |
| 4 NSYNC | External clock synchronization input | Falling-edge-triggered; allows EMI reduction by aligning LX switching to system clock. |
| 5 FB | Feedback voltage sense input | Compares divided VOUT against 1.15V reference to regulate output voltage. |
| 6 NC | No-connect terminal | Must remain unconnected; no internal connection or function. |
| 8 NEN | Active-low enable input | Pulling high disables all switching and reduces VDD current to ≤3µA. |
| 9 VOUT | Boost output voltage node | High-side output connected to cathode of integrated Schottky diode; max 31V rating. |
| 10 LX | Boost switch node | Drives external inductor; connects internally to anode of Schottky diode and boost FET drain. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input disconnect switch | rON = 0.2Ω enables true zero-output-current shutdown, eliminating standby battery drain. |
| Six-stage soft-start sequence | ~8.256ms controlled ramp-up prevents output overshoot and limits inrush stress on capacitors. |
| Hardware fault protection | Dedicated comparators monitor VOUT (>31V), VDDOUT current (>800mA), and junction temp (>135°C) with autonomous response. |
| Internal Schottky diode | VF = 0.4–0.6V @ 10mA eliminates need for external diode, reducing BOM count and board area. |
| Low logic thresholds | VLO = 0.7V / VHI = 1.8V allows direct interface with 1.8V/2.5V microcontrollers without level shifters. |
Applications
| OLED Display Power | LED Backlight Bias |
|---|---|
|
Use Scenario: Powering anode voltage for passive-matrix OLED (PMOLED) displays in smartwatches and wearables. IC Role / Device Role / Timing Role: Boost regulator providing stable 12–18V bias from 3.6V Li-ion cell; regulates via FB pin with resistor divider. Use Value: Integrated disconnect switch ensures zero current draw during screen-off mode, extending battery runtime by >20% versus standard boost converters. |
Use Scenario: Generating adjustable bias voltage for white LED strings in ultra-thin portable devices. IC Role / Device Role / Timing Role: Constant-frequency PWM boost controller with 1MHz switching, enabling small 6.8µH inductors and low-profile ceramic caps. Use Value: 87% peak efficiency and 0.1µA shutdown current minimize thermal impact and preserve battery capacity during intermittent backlight use. |
| Adjustable Portable Supply | Low-Power Sensor Bias |
|
Use Scenario: Configurable high-voltage rail for analog front-ends in portable medical sensors (e.g., pulse oximetry). IC Role / Device Role / Timing Role: Programmable output regulator (via R1/R2 feedback network) delivering 10–28V at ≤50mA with tight line/load regulation. Use Value: Built-in soft-start and overvoltage lockout prevent damage to sensitive downstream components during power-up or fault conditions. |
Use Scenario: Providing stable 15V bias to MEMS microphone or piezoelectric sensor amplifier stages. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current boost converter with internal compensation and fixed 1MHz frequency for predictable EMI profile. Use Value: Synchronization input (NSYNC) allows alignment to system clock, reducing beat frequencies and simplifying EMI filtering in mixed-signal PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17062ETA+T | Higher 2MHz switching frequency; no integrated Schottky diode; requires external diode and higher BOM count. | Targeted at space-constrained LCD bias rails; lacks input disconnect switch and zero-leakage shutdown. | Choose when board area is critical and external diode placement is acceptable; not suitable for zero-drain standby requirements. |
| TPS61042DRVR | Lower 500mA peak current limit; no VDDOUT disconnect switch; 1.2MHz fixed frequency; no NSYNC pin. | Designed for general-purpose LED drivers; lacks hardware overvoltage protection at VOUT and thermal shutdown hysteresis. | Use for cost-sensitive LED bias where full fault coverage and battery isolation are not required. |
Compared with MAX17062ETA+T and TPS61042DRVR, the ISL97701IRZ-T13 uniquely combines integrated Schottky diode, input disconnect switch, and autonomous multi-fault protection - making it the only option among the three that guarantees zero output current in shutdown and eliminates external diode dependency.
Availability
ISL97701IRZ-T13 is available at Aetrix Electronics and suitable for OLED display power, LED biasing, and adjustable portable supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL97701IRZ-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 semiconductor company specializing in high-performance analog and power management ICs for industrial, computing, and portable applications.
The ISL97701IRZ-T13 belongs to Intersil's high-efficiency boost regulator product line, designed specifically for low-power, battery-operated displays and sensors requiring integrated protection, minimal external components, and ultra-low shutdown current.
FAQ
What is the maximum output voltage supported by the ISL97701IRZ-T13?
The ISL97701IRZ-T13 supports up to 28V output voltage per datasheet specifications, with overvoltage protection triggering at 31V on the VOUT pin. This allows safe operation up to 28V under normal regulation while preventing damage during fault conditions. The actual output is set by the external resistor divider on the FB pin, referenced to 1.15V.
Does the ISL97701IRZ-T13 require external compensation components?
No, the ISL97701IRZ-T13 includes internal compensation with fixed parameters - no external capacitors or resistors are needed on the COMP or FB pins. This simplifies design, reduces bill-of-materials count, and ensures stable loop response across temperature and load variations without tuning.
How does the input disconnect switch in the ISL97701IRZ-T13 improve system performance?
The input disconnect switch in the ISL97701IRZ-T13 provides 0.2Ω ON-resistance between VDD and VDDOUT, enabling true zero-output-current shutdown. When NEN is high, this switch opens, isolating the inductor and output capacitor from the input source - eliminating standby battery drain and improving shelf-life in portable devices.
Can the ISL97701IRZ-T13 synchronize to an external clock, and what is the supported frequency range?
Yes, the ISL97701IRZ-T13 supports external synchronization via the NSYNC pin with a frequency range of 600kHz to 1.4MHz. Falling edges on NSYNC directly time LX falling edges with ≤100ns delay, allowing precise EMI control and clock domain alignment in system-level designs.
What package type and thermal characteristics apply to the ISL97701IRZ-T13?
The ISL97701IRZ-T13 uses a 10-lead 3×3 mm DFN package (MDP0047) with exposed thermal pad. Its typical thermal resistance is θJA = 48°C/W and θJC = 7°C/W, enabling efficient heat transfer to the PCB. The device is rated for –40°C to +85°C ambient operation and supports Pb-free reflow per JEDEC J-STD-020.
ISL97701IRZ-T13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 4.3V
- Voltage - Output (Max):
- 28V
- Current - Output:
- 1.2A (Switch)
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
ISL97701IRZ-T13 FAQ
1.How can I place an order for ISL97701IRZ-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL97701IRZ-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 ISL97701IRZ-T13 reliable?
The price and inventory of ISL97701IRZ-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL97701IRZ-T13 is usually 5 days.
3.What payment methods are accepted for ISL97701IRZ-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL97701IRZ-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL97701IRZ-T13?
ISL97701IRZ-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL97701IRZ-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 ISL97701IRZ-T13?
For technical support, including ISL97701IRZ-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL97701IRZ-T13 requirements.
6.How does Aetrix verify that ISL97701IRZ-T13 is sourced from the original manufacturer or authorized distributors?
All ISL97701IRZ-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 ISL97701IRZ-T13 meets industry standards.
7.What is the process for return or replacement of ISL97701IRZ-T13?
All ISL97701IRZ-T13 units undergo pre-shipment inspection (PSI). If there is an issue with ISL97701IRZ-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 ISL97701IRZ-T13 part is unused and in its original packaging.
Return procedure for ISL97701IRZ-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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