Evaluation Board For High Performance 2A and 3A Linear Regulators

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

• Stable with all capacitor types
• 2A and 3A output current ratings
• 2.2V to 6V input voltage range
• ±1.8% VOUT accuracy guaranteed over line, load and TJ = -40°C to +125°C
• Very low 120mV dropout voltage at 3A (ISL80103)
• Fixed and adjustable VOUT versions
• Very fast transient response
• Excellent 62dB PSRR
• 100µVRMS output noise
• Power-good output
• Adjustable in-rush current limiting
• Short circuit and over-temperature protection
• Available in a 10 Ld DFN
• Servers
• Telecommunications and networking
• Medical equipment
• Instrumentation systems
• Routers and switchers