Features
- Outputs (ISL98608):
- VP = +5.5V (default)
- VN = -5.5V (default)
- Outputs (ISL98608IIH):
- VP = +5V (default)
- VN = -5V (default)
- 2.5V to 5V input voltage range
- ±4.5 to ±7V wide output range
- Maximum current:
- 100mA between VP and VN (ISL98608)
- 200mA between VP and VN (ISL98608IIH)
- >89% efficiency with 12mA load between VP and VN
- 18mm2 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
- Programmable turn-on and turn-off sequencing
- 1.744mmx1.744mm, 4x4 array WLCSP with 0.4mm pitch
Description
The ISL98608 and ISL98608IIH are high efficiency power supplies for small size displays, such as smart phones and tablets requiring ±supply rails. They integrate a boost regulator, LDO, and inverting charge pump that are used to generate two output rails: +5. 5V and -5. 5V (ISL98608) and +5V and -5V (ISL98608IIH). The output voltages can be adjusted from ±4. 5V up to ±7V with 50mV steps using the I2C interface. The devices integrate synchronous rectification MOSFETs for the boost regulator and inverting charge pump, which maximizes conversion efficiency. The ISL98608 and ISL98608IIH integrate all compensation and feedback components, which minimizes BOM count and reduces the solution PCB size to 18mm2. The input voltage range, high efficiency operation, and very low shutdown current make the devices ideal for use in single cell Li-ion battery operated applications. The ISL98608 and ISL98608IIH are offered in a 1. 744mmx1. 744mm WLCSP package, and the devices are specified for operation across the -40°C to +85°C ambient temperature range.
Parameters
| Attributes | Value |
|---|---|
| Boost Current Limit (A) | 1.6 |
| Input Voltage Range (V) | 2.5 - 5 |
| Logic Voltage (Min) | 1.1 |
| On Voltage Range (V) | 4.5 - 7 |
| Off Voltage (Min) (V) | -7 |
| VBOOST (V) | 4.65 - 7.3 |
| VOFF/VN | -7 to -4.5 |
| Logic Voltage (Max) | 5.5 |
| VLOGIC | 1.1 to 5.5 |
| Input Voltage (Min) (V) | 2.5 |
| Input Voltage (Max) (V) | 5 |
| On Voltage (Max) (V) | 4.5 - 4.5 |
| Advanced Features | >89% efficiency with 12mA load between VP and VN, 18mm2 solution PCB area, I2C adjustable output voltages and settings |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| WLCSP-BP | 1.7 x 1.7 x 0.00 | 16 | 0.4 |
| Part Number | Status | Samples | Stock | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL98608II55Z-T | Active | Available | Out of Stock | WLCSP-BP | 1ku | $0.79 | 16# | Reel | 1 | Yes | Pb-Free Ball Terminal (SAC405)-e1 | -40 to +85°C | MALAYSIA | TAIWAN |
| ISL98608IIHZ-T | Active | Available | In Stock | WLCSP-BP | 1ku | $0.87 | 16# | Reel | 1 | Yes | Pb-Free Ball Terminal (SAC405)-e1 | -40 to +85°C | MALAYSIA | TAIWAN |
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