LP38842MR-ADJ

• Ideal for conversion from 1.8V or 1.5V inputs
• Designed for use with low ESR ceramic capacitors
• Ultra-low dropout voltage (115mV@1.5A typical)
• Adjustable output range from 0.56V to 1.5V
• 0.1% load regulation / A (typical)
• 30nA (typical) quiescent current at shutdown
• Low ground pin current at all loads
• Over-temperature/over-current protection
• Available in an 8-lead PSOP package
• Junction temperature range from -40°C to +125°C
• UVLO禁用输出当V _偏置

illustrate

LP38842 - ADJ is a high-current, fast-response voltage regulator that keeps the output voltage regulated with minimal input/output voltage drop. Manufactured using the CMOS process, the device is powered from two input voltages: VBIAS provides the gate of the voltage-driven N-MOS power transistor, while Vin is the input voltage, which is the load powered. The use of an external bias rail allows partial operation from ultra-low input voltages. With bipolar regulators, the CMOS architecture consumes very low quiescent current at any output load current. The result of using N-MOS power transistors with wide bandwidth but minimal external capacitance is the need to maintain loop stability.

The fast transient response of these devices makes them suitable for use in DSPs, microcontroller core voltages, and post-regulator regulators of switching power supplies. Partial PSOP package.

Differential voltage: 115 mV (typical) @ 1.5A load current.

Quiescent Current: 30 mA (typical) at full load.

Shutdown Current: 30 NA (typical) when the S/D pin is low.

Precision Reference: 1.5% room temperature accuracy.

apply

• ASIC power supply: - Desktop computers, laptops and graphics cards, servers - Gaming set-top boxes, printers and copiers
• Server cores and I/O power supplies
• Power supplies for DSPs and FPGAs
• Postal stabilization of SMPS