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Renesas ISL98607BEIAZ-T
- Part No.:
- ISL98607BEIAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
ISL98607BEIAZ-T.pdf
- Description:
- IC REG CONV TFT LCD 2OUT 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,205
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Product details
Overview
ISL98607BEIAZ-T from Renesas Electronics is a highly integrated dual-rail power supply IC for small-display biasing, combining a synchronous boost regulator, LDO, and inverting charge pump to generate ±5V (adjustable to ±5.7V in 50mV steps via I²C) from a 2.8V–4.4V Li-ion input. It delivers >85.5% efficiency at 12mA load, integrates all compensation and feedback components, and achieves a minimal 21mm² PCB solution size.
For engineers reviewing the ISL98607BEIAZ-T datasheet, ISL98607BEIAZ-T pinout, ISL98607BEIAZ-T application, or ISL98607BEIAZ-T equivalent, this device is selected for compact TFT-LCD display power in smartphones and handhelds where ultra-low shutdown current (1µA), I²C programmability, and WLCSP packaging are critical design requirements.
Technical Context
The ISL98607BEIAZ-T implements a multi-stage architecture: a 1.45MHz synchronous boost converter generates VBST (5.15–6.0V), which feeds both a linear VP regulator (+5.0–+5.7V) and an inverting charge pump for VN (−5.0–−5.7V). All three outputs feature independent enable control (ENP/ENN), soft-start (0.7–2ms), and integrated discharge resistors (80Ω VP, 35Ω VN).
Its I²C interface (400kHz Fast-Mode, slave address 0x29) supports real-time voltage adjustment, sequencing configuration, and fault monitoring. The device uses internal MOSFETs (rON = 137mΩ high-side, 220mΩ low-side for boost), eliminates external compensation, and includes undervoltage lockout (2.52V threshold), thermal shutdown (130°C), and UVP on both rails.
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 pre-regulation. |
| VP Output Voltage | +5.0V to +5.7V (50mV steps) - Programmable LDO rail for TFT source driver positive bias. |
| VN Output Voltage | −5.0V to −5.7V (50mV steps) - Programmable inverting charge pump rail for TFT gate driver negative bias. |
| Peak Efficiency | >85.5% at 12mA load between VP and VN - Enables extended battery life in always-on display segments. |
| Shutdown Current | 1µA - Minimizes quiescent drain during display sleep/standby modes. |
| Solution Size | 21mm² - Achieved with fully integrated FETs, compensation, and 1.82×2.15mm WLCSP package. |
| Operating Temp | −40°C to +85°C ambient - Qualified for consumer handheld and industrial portable display environments. |
Pinout & Package
ISL98607BEIAZ-T is packaged in a 20-bump, 4×5 array, 0.4mm pitch Wafer-Level Chip-Scale Package (WLCSP), measuring 1.82mm × 2.15mm. The package features a bottom-side thermal pad connected to PGND for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VP (A3, A4) | Positive output rail | Must be shorted together on PCB; supplies +5V to +5.7V to TFT source drivers; requires 10µF ceramic decoupling. |
| VN (E3) | Negative output rail | Supplies −5V to −5.7V to TFT gate drivers; connects to VSUB (E2) as most-negative node; requires dual 10µF caps for ripple reduction. |
| VBST (B3) | Boost converter output | Intermediate 5.15–6.0V rail powering both VP LDO and VN charge pump; requires 10µF decoupling. |
| VBSTCP (B4) | Charge pump input | Internally tied to VBST on-chip; must be externally shorted to VBST on PCB to enable charge pump operation. |
| ENP (C3) | VP and VBST enable | Active-high logic input (200kΩ pull-down); controls sequencing of boost and positive LDO; enables soft-start. |
| ENN (C2) | VN enable | Active-high logic input (200kΩ pull-down); independently enables/disables negative charge pump output. |
| SCL/SDA (D3/D2) | I²C interface | Standard 400kHz two-wire bus (slave address 0x29); allows dynamic voltage tuning and status readback. |
| PGND (A1,B1,D4) | Power ground | Dual PGND pins (boost and charge pump domains) require low-inductance connection to shared ground plane. |
| AGND (C1) | Analog ground | Separate analog reference for feedback and regulation; must be routed away from noisy power traces. |
| VIN (D1) | Main input supply | Accepts 2.8–4.4V Li-ion; requires 10µF input capacitor; includes 2.52V UVLO with 216mV hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated synchronous boost + LDO + inverting charge pump | Eliminates 12+ external components (inductor, diodes, FETs, compensation network), reducing BOM count and layout complexity. |
| I²C programmable output voltages (±5.0V to ±5.7V) | Enables fine-tuning of display bias rails across panel variants without hardware changes or resistor networks. |
| 1.82×2.15mm WLCSP package with 0.4mm pitch | Supports ultra-thin smartphone bezel designs and high-density PCB layouts where space is constrained. |
| Integrated VP/VN discharge resistors (80Ω / 35Ω) | Ensures rapid rail collapse during shutdown, preventing latch-up or ghosting in TFT panels during power transitions. |
| 1µA shutdown supply current | Extends standby battery life in always-connected mobile devices by minimizing leakage when display is inactive. |
Applications
| TFT-LCD Smart Phone Display | Handheld Medical Monitor |
|---|---|
|
Use Scenario: Powering source and gate drivers in 4.3"–6.5" AMOLED/TFT-LCD modules within slim smartphone form factors. IC Role / Device Role / Timing Role: Dual-rail bias generator providing synchronized ±5.7V rails with independent enable control and I²C-adjustable headroom. Use Value: Enables dynamic contrast optimization and panel-specific voltage calibration without redesigning power circuitry. |
Use Scenario: Supplying precision bias voltages to high-resolution monochrome LCDs in portable ultrasound or ECG monitors. IC Role / Device Role / Timing Role: Compact, low-noise dual-polarity supply with fast soft-start (0.7ms) and <50mV output ripple at 50mA load. Use Value: Guarantees stable display initialization and eliminates visual artifacts during battery-powered cold starts. |
| Industrial Handheld Terminal | Smart Wearable Display |
|
Use Scenario: Driving ruggedized sunlight-readable LCDs in warehouse scanners and field service tablets operating across −30°C to +70°C. IC Role / Device Role / Timing Role: Temperature-stable ±5V supply with −40°C to +85°C qualification, integrated UVP, and thermal shutdown. Use Value: Maintains display functionality under wide thermal swings and brown-out conditions common in industrial environments. |
Use Scenario: Biasing micro-OLED or reflective LCDs in smartwatches and AR glasses where board area and battery life are paramount. IC Role / Device Role / Timing Role: Ultra-small 21mm² solution with 1µA shutdown current and I²C-controlled rail scaling for adaptive brightness modes. Use Value: Extends wearable runtime by >12 hours per charge cycle compared to discrete bias solutions. |
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 interface; larger 3×3mm QFN package; higher 2.5µA shutdown current. | Lacks programmability-requires external resistors for voltage trimming; less suitable for multi-panel platforms. | Choose when cost sensitivity outweighs flexibility and board space is not constrained. |
| MAX17205ETE+ | Higher 3.0V–5.5V input range; ±6V max outputs; integrated backlight LED driver; 24-pin TQFN only. | Targets larger displays with integrated lighting; lacks WLCSP option and has higher quiescent current (2.8µA). | Prefer when simultaneous display bias and LED driving are required in non-space-constrained designs. |
Compared with TPS65136RTER and MAX17205ETE+, the ISL98607BEIAZ-T uniquely combines WLCSP miniaturization, I²C programmability, and sub-2µA shutdown in a single-chip ±5.7V solution-making it optimal for next-gen compact, software-configurable displays.
Availability
ISL98607BEIAZ-T is available at Aetrix Electronics and suitable for TFT-LCD smartphone displays, handheld medical monitors, and industrial handheld terminals requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL98607BEIAZ-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 delivering high-performance analog, power, and embedded processing solutions for automotive, industrial, and consumer electronics markets.
The ISL98607BEIAZ-T belongs to Renesas' display power management IC family, engineered specifically to replace multi-component bias solutions in space-constrained, battery-operated small-format displays with integrated programmability and minimal footprint.
FAQ
What is the default output voltage configuration of the ISL98607BEIAZ-T?
The ISL98607BEIAZ-T powers up with VP = +5.0V, VN = −5.0V, and VBST = +5.15V as factory-default settings. These values are stored in volatile registers and persist until modified via I²C. The device does not retain custom voltage settings across power cycles unless external non-volatile storage manages register writes during boot.
Can the ISL98607BEIAZ-T operate from a 2.5V input supply?
No. The ISL98607BEIAZ-T requires a minimum input voltage of 2.8V, as specified in its recommended operating conditions. Below 2.8V, the internal undervoltage lockout (UVLO) activates at 2.52V (with 216mV hysteresis), disabling all regulators. Attempting operation at 2.5V will prevent startup and may cause unstable behavior.
How does the ISL98607BEIAZ-T handle power sequencing between VP and VN rails?
The ISL98607BEIAZ-T provides independent enable control via ENP (for VP/VBST) and ENN (for VN), allowing precise sequencing. ENP must be asserted before ENN to ensure VBST is established first-critical for proper charge pump operation. The internal ENABLE register (0x05) also supports coordinated sequencing through I²C commands.
Is the ISL98607BEIAZ-T pin-compatible with other members of the ISL98607 family?
Yes-the ISL98607BEIAZ-T shares identical pinout and functionality with the ISL98607EIAZ-T (same WLCSP package), differing only in tape-and-reel quantity and marking. It is not pin-compatible with the TQFN-packaged ISL98607IRTZ-T, which uses a 20-lead 3×4mm footprint with different pin assignments.
What thermal performance can be expected from the ISL98607BEIAZ-T in a typical smartphone PCB layout?
In a standard 4-layer smartphone PCB with 1oz copper and a 100mm² thermal pad connected to internal ground planes, the ISL98607BEIAZ-T exhibits θJA = 66°C/W. At full 100mA load (50mA per rail), junction temperature rise remains below 40°C above ambient-well within the +125°C maximum rating and enabling reliable operation without forced airflow.
ISL98607BEIAZ-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)
ISL98607BEIAZ-T FAQ
1.How can I place an order for ISL98607BEIAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL98607BEIAZ-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 ISL98607BEIAZ-T reliable?
The price and inventory of ISL98607BEIAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL98607BEIAZ-T is usually 5 days.
3.What payment methods are accepted for ISL98607BEIAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL98607BEIAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL98607BEIAZ-T?
ISL98607BEIAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL98607BEIAZ-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 ISL98607BEIAZ-T?
For technical support, including ISL98607BEIAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL98607BEIAZ-T requirements.
6.How does Aetrix verify that ISL98607BEIAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL98607BEIAZ-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 ISL98607BEIAZ-T meets industry standards.
7.What is the process for return or replacement of ISL98607BEIAZ-T?
All ISL98607BEIAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL98607BEIAZ-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 ISL98607BEIAZ-T part is unused and in its original packaging.
Return procedure for ISL98607BEIAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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