Overview
Description
The ISL98607IRTZR5622 is a high-efficiency power supply for small size displays, like smart phones, requiring ±supply rails. It integrates a boost regulator, LDO, and inverting charge pump that are used to generate two output rails: +5. 5V (default) and -5. 5V (default). The output voltages can be adjusted up to ±5. 7V with 50mV steps using the I2C interface. The device integrates synchronous rectification MOSFETs for the boost regulator and inverting charge pump, which maximizes conversion efficiency. ISL98607IRTZR5622 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 ISL98607IRTZR5622 is offered in a 20 Ld 3x4mm2 TQFN package, and the device is specified for operation across the -40°C to +85°C ambient temperature range.
Features
- Two outputs:
- VP = +5.5V (default)
- VN = -5.5V (default)
- 2.8V to 4.8V input voltage range
- >85% efficiency with 20mA 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
- 20 Ld 3x4mm2 TQFN
- Pb-free (RoHS compliant)
Comparison
Applications
Documentation
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| Type | Title | Date |
| Materials Composition Declaration | PDF 98 KB | |
| Product Advisory | PDF 203 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
| TQFN | Tube | 6000 | ||
| TQFN | Reel | 6000 |
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