Part LP3927
Description Cellular/PCS System Power Management
Category Power Management IC
Manufacturer National Semiconductor
Size 326.09 KB
National Semiconductor
LP3927

Overview

The LP3927 system power management IC is designed for cellular/PCS handsets as well as other portable systems that require intelligent power management. Each device contains five low-dropout linear regulators (LDO’s), a reset timer, a power-up control logic, a general-purpose open drain output that can be used to light LEDs, and a CMOS rail-to-rail input/output operational amplifier.

  • 0V to 5.5V Input Voltage Range Two 200 mA, Two 150 mA and One 100 mA LDO’s 100 mV typ Dropout Voltage @ IMAX 150 mA General-Purpose Open-drain programmable current sink for back light LED
  • Low Voltage Rail to Rail Input/Output Operational Amplifier
  • 28 pin LLP package n n n