The ISL80019AIRZ-T7A is a synchronous step-down DC/DC converter capable of delivering up to 1.5A of continuous output current with an input voltage range of 2.7V to 5.5V. It features a peak current mode control architecture that allows for low duty cycle operation and offers selectable switching frequencies of 1MHz or 2MHz, enhancing transient response and enabling the use of smaller inductors. The device integrates low rDS(ON) MOSFETs to maximize efficiency, achieving up to 95% peak efficiency, and eliminates the need for a boot capacitor due to its PMOS high-side MOSFET design, which reduces the external component count. The ISL80019AIRZ-T7A supports both Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) operation modes, providing flexibility for high efficiency at light loads and reduced noise susceptibility. It includes essential protection features such as overcurrent, short circuit, and thermal protection, as well as undervoltage lockout and overvoltage protection. The product is housed in a compact 8-pin 2mm x 2mm TDFN package with an exposed pad for improved thermal performance, making it suitable for applications such as point-of-load DC/DC conversion, set-top boxes, and FPGA power supplies.
The ISL8002, ISL8002A, ISL80019 and ISL80019A are highly efficient, monolithic, synchronous step-down DC/DC converters that can deliver up to 2A of continuous output current from a 2.7V to 5.5V input supply. They use peak current mode control architecture to allow very low duty cycle operation. They operate at either 1MHz or 2MHz switching frequency, thereby providing superior transient response and allowing for the use of small inductors. They also have excellent stability and provide both internal and external compensation options.
The ISL8002, ISL8002A, ISL80019 and ISL80019A integrate very low rDS(ON) MOSFETs in order to maximize efficiency. In addition, since the high-side MOSFET is a PMOS, the need for a Boot capacitor is eliminated, thereby reducing external component count. They can operate at 100% duty cycle (at 1MHz) with a dropout of 200mV at 2A output current.
These devices can be configured for either PFM (discontinuous conduction) or PWM (continuous conduction) operation at light load. PFM provides high efficiency by reducing switching losses at light loads and PWM reduces noise susceptibility and RF interference.
These devices are offered in a space saving 8 pin 2mmx2mm TDFN lead free package with exposed pad for improved thermal performance. The complete converter occupies less than 0.10in2 area.
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| Renesas Electronics Corporation | DigiKey | Rochester Electronics | Lingto Electronic Limited | Quarktwin Technology Ltd. | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | ISL80019AIRZ-T7A | ISL80019AIRZ-T7ATR-ND | ISL80019AIRZ-T7A | ISL80019AIRZ-T7A | ISL80019AIRZ-T7A | ISL80019AIRZ-T7A | ISL80019AIRZ-T7A |
| Product Name | Compact Synchronous Buck Regulators | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | |
| Configuration / Function | Buck | Buck | |||||
| Package Type | Other; DFN | Other; 8-WFDFN Exposed Pad | Other; TDFN8 | Other; 8-WFDFN Exposed Pad | |||
| Special Features | Synchronous Rectification | Synchronous Rectification | |||||
| Output Voltage | 0.6000 to 5.5 volts | 0.6000 to 5.5 volts | 0.6000 to 5.5 volts | 0.6000 volts | |||
| IOUT | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps |
