Overview
Description
The ISL98607 is a high efficiency power supply for small size displays, like smart phones, requiring ±supply rails. It integrates boost regulator, LDO, and inverting charge pump that are used to generate two output rails: +5V (default) and -5V (default). The ±5V output voltages can be adjusted up to ±5. 7V with 50mV steps using the I2C interface. The ISL98607 integrates synchronous rectification MOSFETs for the boost regulator and inverting charge pump, which maximizes conversion efficiency. The ISL98607 integrates all compensation and feedback components, which minimizes BOM count and reduces the solution PCB size to 21mm2. The input voltage range, high efficiency operation, and also very low shutdown current make the device ideal for use in single cell Li-ion battery operated applications. The ISL98607 is offered in the 1. 82x2. 15mm WLCSP and 20 Ld 3x4mm TQFN packages, and the device is specified for operation across the -40°C to +85°C ambient temperature range.
Features
- Two outputs:
- VP = +5.0V (default)
- VN = -5.0V (default)
- 2.8V to 4.4V Input voltage range
- >85.5% Efficiency with 12mA load between VP and VN
- 21mm2 Solution PCB area
- Fully integrated FETs for synchronous rectification
- Integrated compensation and feedback circuits
- I2C adjustable output voltages and settings
- Integrated VP/VN discharge resistors
- 1µA shutdown supply current
- Multiple package options:
- 1.82x2.15mm, 4x5 array WLCSP with 0.4mm pitch
- 20 Ld 3x4mm TQFN
- Pb-Free (RoHS compliant)
Comparison
Applications
- TFT-LCD Smart phone displays
- Small size/handheld displays
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.28 MB | |
| End Of Life Notice | PDF 1.17 MB | |
| Product Change Notice | PDF 144 KB | |
| Product Change Notice | PDF 130 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
ISL98607IRTZ-T Active Samples Available |
TQFN | Reel | 3 | Get Samples, |
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