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Renesas ISL98607AEIAZ-T
- Part No.:
- ISL98607AEIAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
ISL98607AEIAZ-T.pdf
- Description:
- IC REG CONV TFT LCD 2OUT 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,169
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Product details
Overview
ISL98607AEIAZ-T from Renesas is a highly integrated dual-rail power supply IC for small-display biasing, combining a synchronous boost regulator (VBST), a positive LDO (VP), and an inverting charge pump (VN) in one die. It delivers ±5.0V default outputs (adjustable to ±5.7V in 50mV steps via I²C), supports 2.8V–4.4V Li-ion input, achieves >85.5% efficiency at 12mA load, and fits into a compact 21mm² PCB solution. It is designed for TFT-LCD smartphone display power rails.
For engineers reviewing the ISL98607AEIAZ-T datasheet, ISL98607AEIAZ-T pinout, ISL98607AEIAZ-T application, or ISL98607AEIAZ-T equivalent, key selection criteria include dual-rail programmability, ultra-low shutdown current (1µA), WLCSP package footprint (1.82×2.15mm), integrated synchronous FETs, and I²C-controlled voltage fine-tuning for display subsystem optimization.
Technical Context
The ISL98607AEIAZ-T implements a three-stage architecture: a 1.45MHz fixed-frequency synchronous boost converter generates VBST (5.15–6.0V); that output feeds both a low-dropout linear regulator (VP = +5.0–+5.7V, 100mV dropout at 100mA) and a 1.45MHz inverting charge pump (VN = −5.0–−5.7V). All regulation loops use fully integrated compensation networks and feedback resistors.
Control is handled via a standard 400kHz Fast-Mode I²C interface (7-bit address 0x29), enabling real-time adjustment of output voltages, enable sequencing, and fault monitoring. The device includes integrated discharge resistors for VP/VN, thermal shutdown (130°C), and undervoltage protection on all rails - all within a single 20-bump WLCSP package rated for −40°C to +85°C ambient operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 4.4V - matches single-cell Li-ion battery operating range without external pre-regulation. |
| VP Output Voltage | +5.0V to +5.7V (50mV steps) - programmable LDO rail for TFT gate driver positive bias with tight ±2% accuracy. |
| VN Output Voltage | −5.0V to −5.7V (50mV steps) - programmable inverting charge pump rail for TFT common electrode (VCOM) negative bias. |
| Efficiency | >85.5% at 12mA load between VP and VN - enables extended battery life in handheld displays with minimal thermal dissipation. |
| Shutdown Current | 1µA - preserves battery charge during display sleep/standby modes without external power gating. |
| Solution Size | 21mm² PCB area - achieved via integrated FETs, compensation, and feedback, reducing external component count to only 5 capacitors and 1 inductor. |
| Operating Temperature | −40°C to +85°C - qualified for consumer mobile device environments including edge-case thermal conditions. |
Pinout & Package
ISL98607AEIAZ-T uses a 20-ball, 4×5 array, 0.4mm pitch Wafer-Level Chip-Scale Package (WLCSP), measuring 1.82mm × 2.15mm. The package features exposed substrate (VSUB) and dual PGND balls for optimal thermal and EMI performance in space-constrained display modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VP (A3, A4) | Positive LDO output | Must be shorted together on PCB; supplies +5V rail to TFT source drivers; requires 10µF ceramic decoupling to AGND. |
| VN (E3) | Negative charge pump output | Supplies −5V rail to TFT VCOM; connects to two parallel 10µF caps to reduce ripple; VSUB (E2) must tie to VN. |
| VBST (B3) | Boost regulator output | Intermediate rail (5.15–6.0V) powering both VP LDO and VN charge pump; requires 10µF decoupling to PGND. |
| LXP (B2) | Boost switch node | Connects to external 2.2µH inductor; high-side/low-side MOSFETs integrated; max 1A average switching current. |
| ENP (C3), ENN (C2) | Enable inputs | Active-high enables VP (ENP) and VN/VBST (ENN); internal 200kΩ pull-down ensures safe default-off state. |
| SCL/SDA (D3/D2) | I²C interface | Standard 400kHz Fast-Mode bus; supports dynamic voltage tuning and status readback; requires external pull-ups. |
| PGND (A1,B1,D4) | Power ground | Dedicated low-impedance return for boost and charge pump switching paths; separate from AGND (C1) for noise isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous rectification | Eliminates external Schottky diodes and reduces conduction losses in both boost and charge pump stages. |
| On-chip compensation and feedback | Removes need for external compensation networks, saving board space and simplifying design validation. |
| I²C-adjustable ±5V rails | Enables precise VCOM and gate driver bias tuning across display panel batches without hardware changes. |
| Integrated VP/VN discharge resistors | Ensures rapid rail collapse during shutdown, preventing display ghosting or latch-up in fast power-cycle scenarios. |
| 1µA shutdown supply current | Meets stringent battery standby requirements for always-on display subsystems in modern smartphones. |
Applications
| TFT-LCD Smartphone Display | Handheld Medical Monitor |
|---|---|
|
Use Scenario: Powering gate drivers and VCOM electrode in 4–6 inch active-matrix LCD panels. IC Role / Device Role / Timing Role: Dual-rail bias generator delivering synchronized +5.7V and −5.7V with <2ms soft-start to prevent panel flash or image distortion. Use Value: Eliminates discrete DC/DC + inverter + LDO solution, reducing BOM count by ≥7 components and PCB area by >40%. |
Use Scenario: Providing stable dual-polarity supply for analog front-end and LCD backlight control in portable diagnostics devices. IC Role / Device Role / Timing Role: Low-noise, sequenced ±5V source with independent enable control for system-level power domain isolation. Use Value: Enables clean startup/shutdown sequencing required for FDA-compliant medical display certification. |
| Smart Wearable Display | Industrial HMI Panel |
|
Use Scenario: Biasing segmented or dot-matrix LCDs in battery-powered smartwatches and fitness trackers. IC Role / Device Role / Timing Role: Ultra-low-quiescent-power dual-rail generator supporting deep-sleep mode with 1µA shutdown current. Use Value: Extends battery runtime beyond 7 days per charge while maintaining display responsiveness during wake events. |
Use Scenario: Supplying robust ±5V rails for industrial-grade TFT displays operating in wide-temperature environments. IC Role / Device Role / Timing Role: Temperature-stable dual-output regulator qualified for −40°C to +85°C ambient with built-in thermal shutdown. Use Value: Ensures reliable display operation in factory automation settings where thermal cycling and EMI are critical concerns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail display bias applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65136RTER | Fixed ±5V outputs; no I²C programmability; uses external flyback transformer for VN generation. | Lacks fine voltage tuning and integrated charge pump - less suitable for VCOM trimming across panel lots. | Preferred when cost sensitivity outweighs programmability needs and board area is not constrained. |
| MAX17205ETE+ | Higher input range (1.8–5.5V); integrates buck-boost + charge pump; supports up to ±12V outputs. | Over-specified for ±5V smartphone displays; larger TQFN-20 package (4×4mm vs. WLCSP 1.82×2.15mm). | Chosen when future-proofing for higher-voltage panels or multi-platform reuse is required. |
Compared with TPS65136RTER and MAX17205ETE+, the ISL98607AEIAZ-T uniquely balances ultra-compact WLCSP packaging, I²C-adjustable ±5V rails, and sub-21mm² solution size - making it optimal for next-gen smartphone display power where space, programmability, and battery efficiency are co-primary constraints.
Availability
ISL98607AEIAZ-T is available at Aetrix Electronics and suitable for TFT-LCD smartphone displays, handheld medical monitors, and smart wearable displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL98607AEIAZ-T 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power management, and timing solutions for automotive, industrial, and consumer electronics.
The ISL98607AEIAZ-T belongs to Renesas' high-efficiency display power management IC family, engineered specifically to replace multi-component bias solutions in space- and battery-limited small-format LCD systems.
FAQ
What is the default output voltage configuration of the ISL98607AEIAZ-T?
The ISL98607AEIAZ-T powers up with VP = +5.0V and VN = −5.0V as default outputs, both adjustable in 50mV increments via I²C registers VP_OUT (0x09) and VN_OUT (0x08). VBST defaults to +5.15V and can be tuned to +6.0V. These values are stored in volatile registers and reset on power cycle unless retained by external firmware.
Does the ISL98607AEIAZ-T require external compensation components?
No, the ISL98607AEIAZ-T integrates all compensation and feedback circuitry internally. This eliminates external compensation networks for the boost, LDO, and charge pump regulators - reducing bill-of-materials count and ensuring consistent loop stability across manufacturing lots without tuning.
How does the ISL98607AEIAZ-T manage power sequencing between VP and VN rails?
The ISL98607AEIAZ-T uses independent enable pins (ENP for VP, ENN for VN/VBST) and internal soft-start timers (0.7–2ms) to allow controlled sequencing. VP and VN ramp independently, avoiding cross-conduction or latch-up in display driver ICs. Sequencing order is determined by external GPIO timing, not internal logic.
What package type is used for the ISL98607AEIAZ-T, and what are its key mechanical features?
The ISL98607AEIAZ-T uses a 20-ball, 4×5 array, 0.4mm pitch Wafer-Level Chip-Scale Package (WLCSP), sized 1.82mm × 2.15mm. It features solder bumps on top surface, VSUB (E2) tied directly to VN for substrate biasing, and dual PGND balls (A1/B1 and D4) for low-inductance power return - optimized for high-frequency switching in ultra-thin display modules.
Can the ISL98607AEIAZ-T operate from a 2.5V input supply?
No - the ISL98607AEIAZ-T has a specified minimum input voltage of 2.8V. Below this threshold, the undervoltage lockout (UVLO) activates at 2.40–2.65V (with 216mV hysteresis), disabling all regulators. Operation at 2.5V is outside absolute maximum ratings and will result in undefined behavior or failure to start.
ISL98607AEIAZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Converter, TFT LCD
- Voltage - Input:
- 2.8V ~ 4.4V
- Number of Outputs:
- 2
- Voltage - Output:
- ±5V ~ ±5.7V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WLCSP (2.15x1.82)
ISL98607AEIAZ-T FAQ
1.How can I place an order for ISL98607AEIAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL98607AEIAZ-T 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 ISL98607AEIAZ-T reliable?
The price and inventory of ISL98607AEIAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL98607AEIAZ-T is usually 5 days.
3.What payment methods are accepted for ISL98607AEIAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL98607AEIAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL98607AEIAZ-T?
ISL98607AEIAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL98607AEIAZ-T 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 ISL98607AEIAZ-T?
For technical support, including ISL98607AEIAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL98607AEIAZ-T requirements.
6.How does Aetrix verify that ISL98607AEIAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL98607AEIAZ-T 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 ISL98607AEIAZ-T meets industry standards.
7.What is the process for return or replacement of ISL98607AEIAZ-T?
All ISL98607AEIAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL98607AEIAZ-T, 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 ISL98607AEIAZ-T part is unused and in its original packaging.
Return procedure for ISL98607AEIAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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