ISL80102
High Performance 2A Linear Regulator

Key Features

• Stable with all Capacitor Types (Note 11)
• 2A and 3A Output Current Ratings
• 2.2V to 6V Input Voltage Range
• ±1.8% V_OUT Accuracy Guaranteed Over Line, Load and T_J = -40°C to +125°C
• Very Low 120mV Dropout Voltage at 3A (ISL80103)
• Fixed and Adjustable V_OUT Versions
• Very Fast Transient Response
• Excellent 62dB PSRR
• 100µV_RMS Output Noise
• Power-Good Output
• Adjustable In-Rush Current Limiting
• Short Circuit and Over-Temperature Protection
• Available in a 10 Ld DFN (now), 5 Ld TO220 and 5 Ld TO263 (soon)

Description

The ISL80102 and ISL80103 are low voltage, high-current, single output LDOs specified for 2A and 3A output current, respectively. These LDOs operate from input voltages of 2.2V to 6V and are capable of providing output voltages of 0.8V to 5V on the adjustable V_OUT versions. Fixed output voltage options are available in 1.8V, 2.5V, 3.3V and 5V. Other custom voltage options available upon request.

For applications that demand in-rush current less than the current limit, an external capacitor on the soft-start pin provides adjustment. The ENABLE feature allows the part to be placed into a low quiescent current shutdown mode. A sub-micron BiCMOS process is utilized for this product family to deliver the best in class analog performance and overall value.

These CMOS LDOs will consume significantly lower quiescent current as a function of load over bipolar LDOs, which translates into higher efficiency and the ability to consider packages with smaller footprints. Quiescent current is modestly compromised to enable a leading class fast load transient response, and hence a lower total AC regulation band for an LDO in this category.

Applications

• Servers
• Telecommunications and Networking
• Medical Equipment
• Instrumentation Systems
• Routers and Switchers