LP5952TL-2.0 Description
The LP5952TL-2.0 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-lon cell or 3-cell NiMH/NiCd battery. In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to 5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V). The LP5952TL-2.0 offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the LP5952TL-2.0 turns off and reduces battery consumption to 0.1 μA (typical). The LP5952TL-2.0 also features internal protection against overtemperature, overcurrent, and Undervoltage conditions.
LP5952TL-2.0 Features
Input Voltage Range: 0.7 V to 4.5 V
2.5V≤VBATT≤5.5 V
0.5V≤VouT≤2 V
Ensured 350-mA Output Current
For LOAD = 350 mA: 一VBATT≥ VouT(NOM)+ 1.5V or 2.5V (Whichever is Higher)
For LOAD = 150 mA: - VBATT≥VoUT(NOM)+ 1.3V or 2.5V(Whichever is Higher)
Excellent Load Transient Response: ±15 mV Typical
Excellent Line Transient Response: ±1 mV Typical
LP5952TL-2.0 Applications
Mobile Phones
Hand-Held Radios
Personal Digital Assistants
Palm-Top PCs
Portable Instruments
Battery-Powered Devices
