LP3927 is Cellular/PCS System Power Management manufactured by National Semiconductor.
| Part Number | Description |
|---|---|
| LP3921 | Battery Charger Management/Regulator |
| LP3923 | Cellular Phone Power Management |
| LP3928 | High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator |
| LP3929 | High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator |
| LP3905 | Power Management Unit For Low Power Handheld Applications |
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.
